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"count": 257459,
"next": "https://hermes.lco.global/api/v0/messages/?format=api&limit=100&offset=1600&ordering=retracted_on",
"previous": "https://hermes.lco.global/api/v0/messages/?format=api&limit=100&offset=1400&ordering=retracted_on",
"results": [
{
"id": 1547,
"topic": "gcn.circular",
"uuid": "ff6e89b4-cd3d-49ab-a1e2-c22bc5b77054",
"title": "IPN triangulation of GRB 230723A (short)",
"submitter": "Hop gcn.circular",
"authors": "Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>",
"data": {
"date": "23/07/25 15:40:41 GMT",
"from": "Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>",
"title": "GCN CIRCULAR",
"number": "34258",
"subject": "IPN triangulation of GRB 230723A (short)"
},
"message_text": "A.S. Kozyrev, D.V. Golovin, M.L. Litvak, I.G. Mitrofanov, and A.B. Sanin\non behalf of the HEND/Mars Odyssey team,\n\nA. Ridnaia, D. Frederiks, D. Svinkin, A. Lysenko,\nand T. Cline on behalf of the Konus-Wind team,\n\nA. Goldstein, M. S. Briggs, C. Wilson-Hodge,\nand E. Burns on behalf of the Fermi GBM team,\n\nand\n\nW. Boynton, C. Fellows, K. Harshman, H. Enos, R. Starr,\nand A.S. Gardner on on behalf of the GRS-Odyssey GRB team,\nreport:\n\nThe short-duration GRB 230723A\n(Fermi GBM detection: The Fermi GBM team, GCN 34232;\nAGILE/MCAL detection: Panebianco et al., GCN 34237)\nhas been detected by Fermi (GBM), Konus-Wind,\nAGILE (MCAL, AC), and Mars-Odyssey (HEND), so far,\nat about 16723 s UT (04:38:43).\n\nWe have triangulated it to a preliminary, 3 sigma error box\nwhose coordinates are:\n ---------------------------------------------\n RA(2000), deg Dec(2000), deg\n ---------------------------------------------\n Center:\n 22.909 (01h 31m 38s) -67.059 (-67d 03' 31\")\n Corners:\n 24.618 (01h 38m 28s) -66.230 (-66d 13' 48\")\n 24.638 (01h 38m 33s) -66.276 (-66d 16' 34\")\n 21.066 (01h 24m 16s) -67.859 (-67d 51' 31\")\n 21.054 (01h 24m 13s) -67.813 (-67d 48' 46\")\n ---------------------------------------------\nThe error box area is 265 sq. arcmin, and its maximum\ndimension is 2.1 deg (the minimum one is 2 arcmin).\nThe Sun distance was 111 deg.\n\nThe IPN localization is consistent with, but reduces\nthe area of, the Fermi-GBM final localization (GCN 34232).\n\nThis localization may be improved.\n\nA triangulation map and HEALPix FITS file are posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB230723_T16725/IPN/\n\nThe Konus-Wind time history and spectrum will be given\nin a forthcoming GCN Circular.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMjk5NjQ2LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.1VB-72xaozr9kzMkMBsKpHd7DU3YBch1iNSI_EIfXaY\n\n",
"published": "2023-07-25T15:40:55.692847Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T15:40:55.692874Z",
"modified": "2023-07-25T15:40:55.702577Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1548,
"topic": "gcn.circular",
"uuid": "340fd308-c86a-47aa-b980-061c494e68df",
"title": "GRB 230723B: GAD Observatory, La Spezia, Italy upper limit",
"submitter": "Hop gcn.circular",
"authors": "Claudio Lopresti <cl3lop@gmail.com>",
"data": {
"date": "23/07/25 21:01:33 GMT",
"from": "Claudio Lopresti <cl3lop@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34259",
"subject": "GRB 230723B: GAD Observatory, La Spezia, Italy upper limit"
},
"message_text": "Claudio Lopresti (Gruppo Astronomia Digitale - GAD Observatory, La Spezia, Italy)\nin a large collaboration with:\nM.G. Dainotti (National Astronomical Observatory of Japan), \nY. Niino (Tokyo University, Institute of Astronomy), \nK. Kalinowski (Aarhus University, Department of Physics and Astronomy),\nB. De Simone (Universita' degli Studi Di Salerno)\nUnione Astrofili Italiani (UAI)\nreport: \n \nWe imaged the field of GRB 230723B detected by SWIFT(trigger 1180410)\nwith the telescope LX200 12â of GAD Observatory, La Spezia, Italy\nMember of: \n \nUAI/SSV - Unione Astrofili Italiani/sezione stelle variabili, GRB section.\nGAD - Gruppo Astronomia Digitale.\n \nThe observations started 557 min after the GRB trigger, at the end of twilight, \nwith a Shmidt-Cassegrain telescope D=304 mm with reducer F/D=4.75.\n \nWeather conditions were medium.\n \nWe co-added 42 exposures of 120 sec each.\n \n \nStart T0+ End T0+ R lim\n557 min 641 min 19\n \nWe did not found any optical counterpart in the error box of the XRT candidate.\nPage et al. GCN 34234\n \nMagnitudes were estimated with the Gaia EDR3 cat. and \nare not corrected for galactic dust extinction.\n \nReference:\nhttps://www.parcodellestelle.com/\n \nThe message may be cited.\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzE4ODk4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Pum-njLv3ZMD9d-mwAyM2b6Ciq0P0Nb0Mgy901SOZ_g\n\n",
"published": "2023-07-25T21:01:44.355735Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T21:01:44.355768Z",
"modified": "2023-07-25T21:01:44.371254Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 2490,
"topic": "gcn.circular",
"uuid": "8ae60294-eeec-42b9-b799-dae364e20159",
"title": "GRB 230826A: Fermi GBM Final Real-time Localization",
"submitter": "Hop gcn.circular",
"authors": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"data": {
"date": "23/08/26 19:43:17 GMT",
"from": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
"title": "GCN CIRCULAR",
"number": "34564",
"subject": "GRB 230826A: Fermi GBM Final Real-time Localization"
},
"message_text": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 19:32:44 UT on 26 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230826A (trigger 714771169.528076 / 230826814).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 82.8, Dec = 67.1 (J2000 degrees, equivalent to J2000 05h 31m, 67d 05'), with a statistical uncertainty of 2.0 degrees.\n\nThe angle from the Fermi LAT boresight is 117.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230826814/quicklook/glg_skymap_all_bn230826814.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230826814/quicklook/glg_healpix_all_bn230826814.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230826814/quicklook/glg_lc_medres34_bn230826814.gif\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkzMDc5MDAwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.i7ATjuxdfSmkVHBRuNPxgLXWw5_-XU9_9hysnYhKihE\n\n",
"published": "2023-08-26T19:43:25.507127Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-26T19:43:25.507144Z",
"modified": "2023-08-26T19:43:25.510632Z",
"nonlocalizedevents": [],
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},
{
"id": 3261,
"topic": "hermes.message",
"uuid": "09b33c53-1a59-45a7-9c91-3a318e5d1e19",
"title": "INTEGRAL follow-up of S230822bm",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230822bm at 2023-08-22T23:03:37.000\n\n\nSPI-ACS excesses:\nat T0+25.73 FAP = 0.089\nat T0+18.51 FAP = 0.143\nat T0+13.53 FAP = 0.18\nat T0+-19.87 FAP = 0.382\nat T0+-2.87 FAP = 0.391\nat T0+-231.22 FAP = 0.535\nat T0+-66.75 FAP = 0.642\n\n\n\n\nnext break in data in 20 hr: 2023-08-23T18:56:26, for 9.3 hr",
"published": "2023-09-21T20:09:30.133462Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T20:09:30.133486Z",
"modified": "2023-09-21T20:09:30.140326Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3262,
"topic": "hermes.message",
"uuid": "5886c9eb-0f6c-4567-95a6-b9895c490c32",
"title": "INTEGRAL follow-up of S230916f",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230916f at 2023-09-16T01:48:06.000\n\n\nSPI-ACS excesses:\nat T0+124.16 FAP = 0.18\nat T0+-15.44 FAP = 0.357\nat T0+-172.34 FAP = 0.614\nat T0+-28.04 FAP = 0.689\nat T0+179.61 FAP = 0.761\nat T0+-148.87 FAP = 0.762\nat T0+224.64 FAP = 0.844\n\n\n\n\nnext break in data in 16 hr: 2023-09-16T17:33:35, for 9.3 hr",
"published": "2023-09-21T20:14:27.649624Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T20:14:27.649644Z",
"modified": "2023-09-21T20:14:27.656103Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3263,
"topic": "hermes.message",
"uuid": "a410a7ce-0472-4bc5-8b57-7bd82221fd77",
"title": "INTEGRAL follow-up of S230824co",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230824co at 2023-08-24T18:20:52.000\n\n\nSPI-ACS excesses:\nat T0+-5.83 FAP = 0.026\nat T0+-1.88 FAP = 0.029\nat T0+30.67 FAP = 0.28\nat T0+-248.9 FAP = 0.392\nat T0+94.3 FAP = 0.44\nat T0+20.5 FAP = 0.565\nat T0+-12.93 FAP = 0.661\nat T0+151.3 FAP = 0.918\n\n\n\n\nnext break in data in 40 hr: 2023-08-26T10:47:36, for 9.3 hr",
"published": "2023-09-21T20:30:17.660501Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T20:30:17.660537Z",
"modified": "2023-09-21T20:30:17.667348Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11676,
"topic": "lvk-users.beccatest",
"uuid": "308d0353-a7b9-448b-aa4e-f0a8ee1627c0",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400626400
],
"range": 157.3384497650402
},
"message_text": "",
"published": "2024-05-24T22:53:20.225342Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T22:53:20.225355Z",
"modified": "2024-05-24T22:53:20.225360Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11677,
"topic": "lvk-users.beccatest",
"uuid": "ef307468-dbc3-4c0d-aac2-dde8a9b6b9f3",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400626400
],
"range": 52.618595477277466
},
"message_text": "",
"published": "2024-05-24T22:53:26.243338Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T22:53:26.243359Z",
"modified": "2024-05-24T22:53:26.243365Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11678,
"topic": "lvk-users.beccatest",
"uuid": "da644876-a109-4b10-9973-a5c4f9d7a00a",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400626500
],
"range": 157.8020200937902
},
"message_text": "",
"published": "2024-05-24T22:55:03.585651Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T22:55:03.585670Z",
"modified": "2024-05-24T22:55:03.585677Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1550,
"topic": "gcn.circular",
"uuid": "3e1fab17-04c5-4b9c-8df3-fccabdf86e54",
"title": "IceCube-230725A - IceCube observation of a high-energy neutrino candidate track-like event",
"submitter": "Hop gcn.circular",
"authors": "Marcos Santander at U of Alabama <jmsantander@ua.edu>",
"data": {
"date": "23/07/25 23:24:15 GMT",
"from": "Marcos Santander at U of Alabama <jmsantander@ua.edu>",
"title": "GCN CIRCULAR",
"number": "34261",
"subject": "IceCube-230725A - IceCube observation of a high-energy neutrino candidate track-like event"
},
"message_text": "\nThe IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nOn 23-07-25 at 21:30:51.06 UT IceCube detected a track-like event with a high probability of being of astrophysical origin.\n\nThe event was selected by the ICECUBE_Astrotrack_BRONZE alert stream. The average astrophysical neutrino purity for Bronze alerts is 30%. This alert has an estimated false alarm rate of 1.677 events per year due to atmospheric backgrounds.\nThe IceCube detector was in a normal operating state at the time of detection. After the initial automated alert (https://gcn.gsfc.nasa.gov/notices_amon_g_b/138193_21103478.amon) more sophisticated reconstruction algorithms have have been applied offline, with the direction refined to:\n\nDate: 23-07-25\nTime: 21:30:51.06 UT\nRA: 327.04 (+2.27 / -2.03 90% PSF containment) J2000\nDec: +12.33 (+1.80 / -1.36 deg 90% PSF containment) J2000\n\nWe encourage follow-up by ground and space-based instruments to help identify a possible astrophysical source for the candidate neutrino. One Fermi 4FGL-DR3 or 3FHL catalog source is located in the 90% uncertainty region. The source is 4FGL J2150.8+1118, located at RA 327.70, Dec 11.31, 1.21 deg away from the best-fit alert event position.\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu .\n\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzI3NDYxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.JCb3QUSbVkHQbVWuZU0nIE7jitPxooDYnqZLp_WTuO4\n\n",
"published": "2023-07-25T23:24:26.276951Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T23:24:26.276967Z",
"modified": "2023-07-25T23:24:26.284992Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1551,
"topic": "gcn.circular",
"uuid": "a3b170d8-29da-4cf9-8fcf-3a6cf151f4b1",
"title": "Integral GRB230725.99: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "23/07/25 23:57:26 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34262",
"subject": "Integral GRB230725.99: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,\nG.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gres, N.M. Budnev\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nA. Gabovich, V.Yurkov\n(Blagoveschensk Educational State University)\n\n\nMASTER-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the Integral GRB230725.99 (trigger No 10337,02h 43m 32.74s , +61d 39m 03.2s, R=0.0547) errorbox 6 sec after notice time and 30 sec after trigger time at 2023-07-25 23:40:33 UT, with upper limit up to 16.8 mag. The observations began at zenith distance = 39 deg. The sun altitude is -19.2 deg.\n\nMASTER-Tavrida robotic telescope located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the Integral GRB230725.99 errorbox 18 sec after notice time and 42 sec after trigger time at 2023-07-25 23:40:45 UT, with upper limit up to 18.7 mag. The observations began at zenith distance = 42 deg. The sun altitude is -21.5 deg.\n\nThe galactic latitude b = 2 deg., longitude l = 136 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"45024\n\nWe obtain a following upper limits.\n\nTmid-T0 | Site |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____|_______|______|________\n\n 35 | MASTER-Kislovodsk | P- | 10 | 14.5 |\n 35 | MASTER-Kislovodsk | P| | 10 | 15.5 |\n 48 | MASTER-Tavrida | C | 10 | 17.1 |\n 53 | MASTER-Kislovodsk | P- | 10 | 14.5 |\n 53 | MASTER-Kislovodsk | P| | 10 | 15.5 |\n 67 | MASTER-Tavrida | C | 10 | 17.4 |\n 89 | MASTER-Tavrida | C | 20 | 17.8 |\n 116 | MASTER-Tavrida | C | 20 | 17.8 |\n 130 | MASTER-Kislovodsk | P- | 20 | 15.4 |\n 130 | MASTER-Kislovodsk | P| | 20 | 16.2 |\n 149 | MASTER-Tavrida | C | 30 | 18.0 |\n 163 | MASTER-Kislovodsk | P| | 30 | 16.3 |\n 187 | MASTER-Tavrida | C | 30 | 18.0 |\n 229 | MASTER-Tavrida | C | 40 | 18.1 |\n 281 | MASTER-Tavrida | C | 50 | 18.3 |\n 311 | MASTER-Kislovodsk | P| | 60 | 16.8 |\n 342 | MASTER-Tavrida | C | 60 | 18.3 |\n 420 | MASTER-Tavrida | C | 80 | 18.5 |\n 514 | MASTER-Tavrida | C | 90 | 18.7 |\n 621 | MASTER-Tavrida | C | 110 | 18.7 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzI5NDUyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.x6PnL-lk6LqH9EWRCJYX8Gi6gH69pE8QPmFawuFzd1w\n\n",
"published": "2023-07-25T23:57:37.646355Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-25T23:57:37.646382Z",
"modified": "2023-07-25T23:57:37.666046Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1552,
"topic": "gcn.circular",
"uuid": "5727c3f6-e4e3-43cc-bf23-db05e7ee4eea",
"title": "IBAS trigger number 10337: not a real GRB",
"submitter": "Hop gcn.circular",
"authors": "Sandro Mereghetti at IASF-Milano/INAF <sandro.mereghetti@inaf.it>",
"data": {
"date": "23/07/26 00:24:17 GMT",
"from": "Sandro Mereghetti at IASF-Milano/INAF <sandro.mereghetti@inaf.it>",
"title": "GCN CIRCULAR",
"number": "34263",
"subject": "IBAS trigger number 10337: not a real GRB"
},
"message_text": "S.Mereghetti (INAF, IASF-Milano) on behalf of the IBAS team reports:\n\nThe IBAS trigger number 10337 of 2023-07-25 at 23:40:03 UTC is not a real\nGRB, but is related to the active state of Swift J0243.6+6124.\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzMxMDYzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.ewjImdib0Sn6J1rY4qnvt7NcIwk1wI0qCLL0J5In1HA\n\n",
"published": "2023-07-26T00:24:28.958835Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T00:24:28.958853Z",
"modified": "2023-07-26T00:24:28.966944Z",
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{
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"topic": "igwn.gwalert",
"uuid": "25d71d25-8b50-4df5-91dc-e25de9f7ae4e",
"title": "S230726a - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"duration": null,
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"sequence_num": 1,
"time_created": "2023-07-26T00:30:11Z",
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"published": "2023-07-26T00:30:11.986084Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T00:30:11.986103Z",
"modified": "2023-07-26T00:30:11.992391Z",
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{
"id": 2491,
"topic": "igwn.gwalert",
"uuid": "17b6e5d2-9231-4829-8989-a3192a01916b",
"title": "S230826bi - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-08-26T19:50:11.809Z",
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"time_created": "2023-08-26T19:51:24Z",
"superevent_id": "S230826bi",
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"published": "2023-08-26T19:51:25.777933Z",
"message_parser": "IGWN Alert Avro Parser v1",
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{
"id": 2492,
"topic": "igwn.gwalert",
"uuid": "3d6e1805-9b89-4912-a43e-2034bcc9e029",
"title": "S230826bi - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-08-26T19:50:11.809Z",
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"sequence_num": 2,
"time_created": "2023-08-26T19:55:58Z",
"superevent_id": "S230826bi",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-26T19:55:59.448668Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-26T19:55:59.448691Z",
"modified": "2023-08-26T19:55:59.452498Z",
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{
"id": 2493,
"topic": "gcn.circular",
"uuid": "a8caa56b-b77c-4eaf-bb09-1056886e1eff",
"title": "GRB 230826A: Swift detection of a burst",
"submitter": "Hop gcn.circular",
"authors": "David Palmer at LANL <palmer@lanl.gov>",
"data": {
"date": "23/08/26 20:16:03 GMT",
"from": "David Palmer at LANL <palmer@lanl.gov>",
"title": "GCN CIRCULAR",
"number": "34565",
"subject": "GRB 230826A: Swift detection of a burst"
},
"message_text": "\nR. A. J. Eyles-Ferris (U Leicester), S. Dichiara (PSU),\nJ.D. Gropp (PSU), J. A. Kennea (PSU), D. M. Palmer (LANL),\nT. M. Parsotan (GSFC/UMBC/CRESSTII), M. H. Siegel (PSU) and\nA. Tohuvavohu (U Toronto) report on behalf of the Neil Gehrels Swift\nObservatory Team:\n\nAt 19:32:47 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 230826A (trigger\u001187463). Swift slewed immediately to\nthe location. The BAT on-board calculated location is\nRA, Dec 83.012, +66.125 which is\n RA(J2000) = 05h 32m 03s\n Dec(J2000) = +66d 07' 30\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including\nsystematic uncertainty). Preliminary quicklook data suggests that the\nlight curve is doubly peaked with a T90 of ~50 sec and background\nsubtracted peak count rate of ~4000 counts/sec at T0+3 sec.\n\nThe XRT began observing the field at 19:34:03.7 UT, 76.7 seconds after\nthe BAT trigger. Using promptly downlinked data we find a bright,\nuncatalogued X-ray source located at RA, Dec 83.05920, 66.12506 which\nis equivalent to:\n RA(J2000) = 5h 32d 14.2s,\n Dec(J2000) = 66h 07d 30.2s\nwith an uncertainty of 10.0 arcseconds (radius, 90% containment). This\nlocation is 69 arcseconds from the BAT onboard position, within the BAT\nerror circle.\n\nDue to a telemetry gap, no further information is available at\nthis time. However a simultaneous Fermi trigger (GCN #34564)\nconfirms the GRB.\n\nBurst Advocate for this burst is R. A. J. Eyles-Ferris (raje1 AT leicester.ac.uk).\nPlease contact the BA by email if you require additional information\nregarding Swift followup of this burst. In extremely urgent cases, after\ntrying the Burst Advocate, you can contact the Swift PI by phone (see\nSwift TOO web site for information: http://www.swift.psu.edu/)\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkzMDgwOTY4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.J8bjIv6bq9lDGB2hCIuVeC1o1-n-vAm6B5VU3sZ6HZI\n\n",
"published": "2023-08-26T20:16:14.442808Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-26T20:16:14.442828Z",
"modified": "2023-08-26T20:16:14.447874Z",
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},
{
"id": 2494,
"topic": "gcn.circular",
"uuid": "d04b609c-ae50-4069-b6f4-8dbd0dbb20d5",
"title": "Swift J1727.8-1613 (GRB 230824A): GAD Observatory La Spezia - optical observations",
"submitter": "Hop gcn.circular",
"authors": "Claudio Lopresti <cl3lop@gmail.com>",
"data": {
"date": "23/08/26 20:45:21 GMT",
"from": "Claudio Lopresti <cl3lop@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34566",
"subject": "Swift J1727.8-1613 (GRB 230824A): GAD Observatory La Spezia - optical observations"
},
"message_text": "Claudio Lopresti (Gruppo Astronomia Digitale - GAD Observatory, La Spezia, Italy - UAI SSV- GRB Section)\nin a large collaboration with:\nM.G. Dainotti (National Astronomical Observatory of Japan),\nY. Niino (Tokyo University, Institute of Astronomy),\nK. Kalinowski (Aarhus University, Department of Physics and Astronomy),\nB. De Simone (Universita' degli Studi Di Salerno)\nUnione Astrofili Italiani (UAI SSV- GRB Section)\nreport:\n\nI imaged the field of of Swift J1727.8-1613 (GRB 230824A) (Page et al., GCN 34537; Navaneeth et al., GCN 34538, Odeh et al., GCN 34543) with the following telescope: 0.18-m f/4 Mak-Newton reflector at GAD Observatory, Italy, with filters Infrared, Red, and V. I clearly detected a bright object, in the same location as M.Odeh et al., GCN 34543, within the uncertainty radius of the Swift localization, at: R.A. (J2000): 17:27:43.32 Dec. (J2000): -16:12:18.8.\n\nThe results of photometry are:\n\nIn Infrared band:\n============================================ Date UT Exp Time I-mag Err\n============================================2460181.3096064800 90s 13.71 0.10\n2460181.3143750000 90s 13.85 0.08\n2460181.3191319400 90s 13.83 0.04\n2460181.3239004600 90s 13.78 0.03\n2460181.3286689800 90s 13.80 0.02\n2460181.3334259200 90s 13.82 0.06\n2460181.3519444400 90s 13.90 0.09\n2460181.3559490700 180s 13.72 0.09\n2460181.3599537000 180s 13.79 0.05\n2460181.3639583300 180s 13.69 0.03\n2460181.3679745300 180s 13.73 0.03\n2460181.3719907400 180s 13.83 0.07\n2460181.3760069400 180s 13.71 0.09\n\n\nIn Red band:\n============================================ Date UT Exp Time R-mag Err\n============================================2460181.3119675900 90s 14.09 0.00\n2460181.3167361100 90s 14.09 0.02\n2460181.3215046200 90s 14.05 0.04\n2460181.3262615700 90s 14.14 0.05\n2460181.3310300900 90s 14.15 0.08\n2460181.3532407400 90s 14.01 0.07\n2460181.3572569400 180s 14.06 0.05\n2460181.3612615700 180s 13.96 0.06\n2460181.3652662000 180s 13.96 0.00\n2460181.3692824000 180s 13.96 0.01\n2460181.3732986100 180s 13.98 0.01\n\n\nIn V band:\n============================================ Date UT Exp Time V-mag Err\n============================================2460181.3586111100 90s 13.51 0.09\n2460181.3626157400 90s 13.37 0.07\n2460181.3666203700 90s 13.44 0.04\n2460181.3706365700 90s 13.46 0.01\n2460181.3746527700 90s 13.45 0.01\n\n\nMagnitudes were estimated with the PanSTARRS cat., not corrected for galactic dust extinction. Weather conditions were good.\n\nReference:\nhttps://www.parcodellestelle.com/\n\nThe message may be cited.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkzMDgyNzI2LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Xt9BlpDuQ16bmXRrHUtkEtlIgJ13TjgD6XvkCIRk2EY\n\n",
"published": "2023-08-26T20:45:31.896722Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-26T20:45:31.896748Z",
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{
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"topic": "lvk-users.beccatest",
"uuid": "d14f9375-5cad-462a-9a34-7fbf54611b41",
"title": "Generic Message",
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"authors": "",
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1400626500
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"published": "2024-05-24T22:55:06.608367Z",
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{
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"topic": "lvk-users.beccatest",
"uuid": "d223ed32-3896-4353-8b1e-cea94cf8c278",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
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"time": [
1400626600
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"range": 158.1392114702088
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"message_text": "",
"published": "2024-05-24T22:56:39.789252Z",
"message_parser": "",
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"created": "2024-05-24T22:56:39.789265Z",
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{
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"topic": "igwn.gwalert",
"uuid": "ff988211-7140-4f6d-9e01-c7280f0a10ab",
"title": "S230726a - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"published": "2023-07-26T01:15:32.389962Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T01:15:32.389981Z",
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"topic": "igwn.gwalert",
"uuid": "fda73e65-a9f5-4d8c-8668-87d702443ec9",
"title": "S230726b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-07-26T01:15:07.790Z",
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"sequence_num": 2,
"time_created": "2023-07-26T01:20:05Z",
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"published": "2023-07-26T01:20:06.939631Z",
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"retracted": false,
"created": "2023-07-26T01:20:06.939660Z",
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"topic": "igwn.gwalert",
"uuid": "0c694510-f12b-4483-8259-0e2f26cc0166",
"title": "S230726a - INITIAL",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"alert_type": "INITIAL",
"sequence_num": 3,
"time_created": "2023-07-26T01:22:42Z",
"superevent_id": "S230726a",
"external_coinc": null
},
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"published": "2023-07-26T01:22:44.174488Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T01:22:44.174508Z",
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{
"id": 1558,
"topic": "gcn.circular",
"uuid": "e5fa987d-5a48-4674-9606-4a0aaae788c4",
"title": "LIGO/Virgo/KAGRA S230726a: Identification of a GW compact binary merger candidate",
"submitter": "Hop gcn.circular",
"authors": "Andy C <andy.c.80297@gmail.com>",
"data": {
"date": "23/07/26 01:38:51 GMT",
"from": "Andy C <andy.c.80297@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34264",
"subject": "LIGO/Virgo/KAGRA S230726a: Identification of a GW compact binary merger candidate"
},
"message_text": "The LIGO Scientific Collaboration, the Virgo Collaboration, and the\nKAGRA Collaboration report:\n\nWe identified the compact binary merger candidate S230726a during\nreal-time processing of data from LIGO Livingston Observatory (L1) at\n2023-07-26 00:29:40.060 UTC (GPS time: 1374366598.060). The candidate\nwas found by the GstLAL [1] analysis pipeline.\n\nS230726a is an event of interest because its false alarm rate, as\nestimated by the online analysis, is 3.8e-14 Hz, or about one in 1e6\nyears. The event's properties can be found at this URL:\n\nhttps://gracedb.ligo.org/superevents/S230726a\n\nThe classification of the GW signal, in order of descending\nprobability, is BBH (>99%), Terrestrial (<1%), NSBH (<1%), or BNS\n(<1%).\n\nAssuming the candidate is astrophysical in origin, the probability\nthat the lighter compact object is consistent with a neutron star mass\n(HasNS) is <1%. [2] Using the masses and spins inferred from the\nsignal, the probability of matter outside the final compact object\n(HasRemnant) is <1%. [2] Both HasNS and HasRemnant consider the\nsupport of several neutron star equations of state. The probability\nthat either of the binary components lies between 3 and 5 solar masses\n(HasMassgap) is <1%.\n\nTwo sky maps are available at this time and can be retrieved from the\nGraceDB event page:\n * bayestar.multiorder.fits,0, an initial localization generated by\nBAYESTAR [3], distributed via GCN notice about 30 seconds after the\ncandidate event time.\n * bayestar.multiorder.fits,1, an initial localization generated by\nBAYESTAR [3], distributed via GCN notice about 5 minutes after the\ncandidate event time.\n\nThe preferred sky map at this time is bayestar.multiorder.fits,1. For\nthe bayestar.multiorder.fits,1 sky map, the 90% credible region is\n24219 deg2. Marginalized over the whole sky, the a posteriori\nluminosity distance estimate is 2077 +/- 699 Mpc (a posteriori mean\n+/- standard deviation).\n\nFor further information about analysis methodology and the contents of\nthis alert, refer to the LIGO/Virgo/KAGRA Public Alerts User Guide\nhttps://emfollow.docs.ligo.org/userguide/.\n\n [1] Tsukada et al. arXiv:2305.06286 (2023) and Ewing et al.\narXiv:2305.05625 (2023)\n [2] Chatterjee et al. ApJ 896, 54 (2020)\n [3] Singer & Price PRD 93, 024013 (2016)\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzM1NTM2LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.A93yLots8-DUhsfWaU4He85YT3_HIx9k7TkTuKe4J6k\n\n",
"published": "2023-07-26T01:39:02.153461Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T01:39:02.153478Z",
"modified": "2023-07-26T01:39:02.161513Z",
"nonlocalizedevents": [
{
"event_id": "S230726a"
}
],
"targets": []
},
{
"id": 1559,
"topic": "gcn.circular",
"uuid": "d4875705-bfe3-44ac-813c-0163950e6694",
"title": "IceCube-230724A - IceCube observation of a high-energy neutrino candidate track-like event",
"submitter": "Hop gcn.circular",
"authors": "Marcos Santander at U of Alabama <jmsantander@ua.edu>",
"data": {
"date": "23/07/26 01:43:56 GMT",
"from": "Marcos Santander at U of Alabama <jmsantander@ua.edu>",
"title": "GCN CIRCULAR",
"number": "34265",
"subject": "IceCube-230724A - IceCube observation of a high-energy neutrino candidate track-like event"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nOn 2023-07-24 at 01:49:13.38 UT IceCube detected a track-like event with a high probability of being of astrophysical origin. The event was selected by the ICECUBE_Astrotrack_GOLD alert stream. The average astrophysical neutrino purity for Gold alerts is 50%. This alert has an estimated false alarm rate of 1.174 events per year due to atmospheric backgrounds. The IceCube detector was in a normal operating state at the time of detection.\n\nAfter the initial automated alert (https://gcn.gsfc.nasa.gov/notices_amon_g_b/138181_66037171.amon) more sophisticated reconstruction algorithms have been applied offline, with the direction refined to:\n\nDate: 2023-07-24\nTime: 01:49:13.38 UT\nRA: 32.52 (+0.58, -0.40 deg 90% PSF containment) J2000\nDec: -1.87 (+0.23, -0.33 deg 90% PSF containment) J2000\n\nAn error in the automatic processing pipeline that performs the offline reconstruction resulted in a delay in the circulation of the updated position. Therefore, an alternative reconstruction algorithm has been applied to this event. We encourage follow-up by ground and space-based instruments to help identify a possible astrophysical source for the candidate neutrino.\n\n There are no Fermi 4FGL-DR3 or 3FHL catalog sources in the 90% uncertainty region. The nearest gamma-ray source in either catalog is 4FGL J0212.2-0219 at RA: 33.07 deg, Dec: -2.32 deg (0.71 deg away from the best-fit alert position).\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu\n\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzM1ODM5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.2RRJpuxb_zki2G2yA53vE593bdQgOQgAXhTM-Z9KM6w\n\n",
"published": "2023-07-26T01:44:04.094312Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T01:44:04.094337Z",
"modified": "2023-07-26T01:44:04.100948Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11681,
"topic": "lvk-users.beccatest",
"uuid": "58aa04e4-bee2-472e-a302-a2e819168127",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400626600
],
"range": 52.35906622270635
},
"message_text": "",
"published": "2024-05-24T22:56:45.817274Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T22:56:45.817286Z",
"modified": "2024-05-24T22:56:45.817290Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3264,
"topic": "hermes.message",
"uuid": "0d49e2d7-ff0b-4d68-ad50-28858c0d76f3",
"title": "INTEGRAL follow-up of S230915ba",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230915ba at 2023-09-15T13:35:09.000\n\n\nSPI-ACS excesses:\nat T0+-31.91 FAP = 0.358\nat T0+252.37 FAP = 0.388\nat T0+32.12 FAP = 0.72\nat T0+-116.01 FAP = 0.859\nat T0+58.82 FAP = 0.883\n\n\n\n\nnext break in data in 28 hr: 2023-09-16T17:33:35, for 9.3 hr",
"published": "2023-09-21T20:35:22.237470Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T20:35:22.237490Z",
"modified": "2023-09-21T20:35:22.245072Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3265,
"topic": "hermes.message",
"uuid": "b9e323b7-2045-4fb0-a859-45b5171a4353",
"title": "INTEGRAL follow-up of S230917aw",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230917aw at 2023-09-17T18:28:47.000\n\n\nSPI-ACS excesses:\nat T0+-5.19 FAP = 0.138\nat T0+16.51 FAP = 0.261\nat T0+191.06 FAP = 0.503\nat T0+186.46 FAP = 0.858\n\n\n\n\nnext break in data in 39 hr: 2023-09-19T09:23:29, for about 9 hr",
"published": "2023-09-21T20:45:02.062961Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T20:45:02.062982Z",
"modified": "2023-09-21T20:45:02.072255Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3266,
"topic": "hermes.message",
"uuid": "aef2fadc-036e-4e23-8fe5-d8034a2e824a",
"title": "INTEGRAL follow-up of S230915bv",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230915bv at 2023-09-15T18:24:03.000\n\n\nSPI-ACS excesses:\nat T0+203.74 FAP = 0.081\nat T0+-8.26 FAP = 0.555\n\n\n\n\nnext break in data in 23 hr: 2023-09-16T17:33:35, for 9.3 hr",
"published": "2023-09-21T20:51:54.948421Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T20:51:54.948440Z",
"modified": "2023-09-21T20:51:54.954638Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3267,
"topic": "hermes.message",
"uuid": "5980769e-4aab-4492-a61d-34fa8d8c5d18",
"title": "INTEGRAL follow-up of S230831bm",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230831bm at 2023-08-31T13:29:18.000\n\n\nSPI-ACS excesses:\nat T0+70.41 FAP = 0.149\nat T0+-11.09 FAP = 0.907\n\n\n\n\nnext break in data in 5 hr: 2023-08-31T18:31:55, for 9.3 hr",
"published": "2023-09-21T20:53:15.050588Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T20:53:15.050624Z",
"modified": "2023-09-21T20:53:15.057640Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11682,
"topic": "lvk-users.beccatest",
"uuid": "f8530eae-a875-48ac-b4dd-3b2ac97d5191",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400626700
],
"range": 158.25305464050902
},
"message_text": "",
"published": "2024-05-24T22:58:19.956899Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T22:58:19.956913Z",
"modified": "2024-05-24T22:58:19.956918Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11683,
"topic": "lvk-users.beccatest",
"uuid": "3b37dcfc-cf2b-4b46-842b-1649fc61920f",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"V1"
],
"time": [
1400626700
],
"range": 52.387249056062636
},
"message_text": "",
"published": "2024-05-24T22:58:25.974234Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T22:58:25.974247Z",
"modified": "2024-05-24T22:58:25.974251Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1566,
"topic": "igwn.gwalert",
"uuid": "e03aa797-87e9-4ad6-b221-222520e4ce66",
"title": "S230726q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726q/view/"
},
"event": {
"far": 1.919405639944385e-05,
"time": "2023-07-26T04:06:13.812Z",
"group": "CBC",
"search": "AllSky",
"area_50": 530.0139369508519,
"area_90": 1867.4283605948465,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.014712917913729274,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "43ce0fabbde489da34799534718f1090",
"classification": {
"BBH": 0.10779236465595828,
"BNS": 2.290801522602201e-15,
"NSBH": 1.5517200823795395e-13,
"Terrestrial": 0.8922076353438843
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-26T04:06:39Z",
"superevent_id": "S230726q",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T04:06:40.247144Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T04:06:40.247173Z",
"modified": "2023-07-26T04:06:40.253862Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1567,
"topic": "igwn.gwalert",
"uuid": "8a6d0eac-f3ea-4880-bddf-7f1989c3841d",
"title": "S230726q - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726q/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726q/view/"
},
"event": {
"far": 1.919405639944385e-05,
"time": "2023-07-26T04:06:13.812Z",
"group": "CBC",
"search": "AllSky",
"area_50": 530.0139369508519,
"area_90": 1867.4283605948465,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.0,
"HasMassGap": 0.014712917913729274,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "43ce0fabbde489da34799534718f1090",
"classification": {
"BBH": 0.10779236465595828,
"BNS": 2.290801522602201e-15,
"NSBH": 1.5517200823795395e-13,
"Terrestrial": 0.8922076353438843
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-26T04:11:14Z",
"superevent_id": "S230726q",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T04:11:16.011804Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T04:11:16.011822Z",
"modified": "2023-07-26T04:11:16.018142Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1568,
"topic": "gcn.circular",
"uuid": "43a94e36-4865-4a10-8ef8-1091aeab9238",
"title": "LIGO/Virgo/KAGRA S230726b: one counterpart neutrino candidate from IceCube neutrino searches",
"submitter": "Hop gcn.circular",
"authors": "acz2122@columbia.edu",
"data": {
"date": "23/07/26 04:36:27 GMT",
"from": "acz2122@columbia.edu",
"title": "GCN CIRCULAR",
"number": "34266",
"subject": "LIGO/Virgo/KAGRA S230726b: one counterpart neutrino candidate from IceCube neutrino searches"
},
"message_text": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nA search for track-like muon neutrino events detected by IceCube consistent with the sky\nlocalization of the low-significance gravitational wave candidate S230726b in a time range of 1000 seconds\ncentered on the alert event time (2023-07-26 01:06:47 UTC to 2023-07-26 01:23:27 UTC)\nhas been performed [1,2]. During this time period IceCube was collecting good quality data.\nOne hypothesis test was conducted for this low-significance gravitational wave event. The\nsearch uses a Bayesian approach to quantify the joint GW + neutrino event significance, which\nassumes a binary merger scenario and accounts for known astrophysical priors, such as GW source\ndistance, in the significance estimate [3].\n\nOne track-like event is found in spatial and temporal coincidence with the gravitational-wave\ncandidate S230726b calculated from the map circulated by LVK as S230726b-2-Preliminary. This\nrepresents an overall pre-trial p-value of 0.0089 for the Bayesian search.\n\nThe reported p-value here does not account for any trials correction (multiple hypotheses testing). The false alarm rate of these coincidences can be obtained by multiplying the p-values with their corresponding GW trigger rates. Further details are available at https://gcn.nasa.gov/missions/icecube.\n\nProperties of the coincident event(s) are shown below.\n\ndt(s)\tRA(deg)\t\tDec(deg)\tAngular uncertainty(deg) p-value(generic transient) p-value(Bayesian)\n-----------------------------------------------------------------------------------------------------\n80.15 131.82 \t1.68 \t1.889 \t\tnot applicable \t0.0098\n...\n\nwhere:\ndt = Time of track event minus time of GW trigger (sec)\nAngular uncertainty = Angular uncertainty of track event: the radius of a circle\n \trepresenting 90% CL containment by area.\np-value = the p-value for this specific track event from each search.\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the\ngeographic South Pole, Antarctica. The IceCube realtime alert point of contact can be\nreached at roc@icecube.wisc.edu\n\n\n[1] M. G. Aartsen et al 2020 ApJL 898 L10\n[2] Abbasi et al. Astrophys.J. 944 (2023) 1, 80\n[3] I. Bartos et al. 2019 Phys. Rev. D 100, 083017\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzQ2MTkzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.f-jgVhdOasHfyeQtvwr9qyIa-BJT3ic4LmQG3Mb7ofs\n\n",
"published": "2023-07-26T04:36:40.354325Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T04:36:40.354350Z",
"modified": "2023-07-26T04:36:40.367153Z",
"nonlocalizedevents": [
{
"event_id": "S230726b"
}
],
"targets": []
},
{
"id": 11686,
"topic": "lvk-users.beccatest",
"uuid": "b5b85c63-551e-420e-a70e-35f625614e6d",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400626900
],
"range": 157.83711166013703
},
"message_text": "",
"published": "2024-05-24T23:01:39.640745Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:01:39.640759Z",
"modified": "2024-05-24T23:01:39.640763Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1574,
"topic": "igwn.gwalert",
"uuid": "5199aaeb-e4b4-4a24-9128-f1d020243af5",
"title": "S230726ar - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726ar/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726ar/view/"
},
"event": {
"far": 1.611618149473108e-05,
"time": "2023-07-26T08:40:50.446Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1305.3114417146674,
"area_90": 9463.875143401117,
"duration": null,
"pipeline": "gstlal",
"properties": {
"HasNS": 0.8007322359360801,
"HasMassGap": 0.9345178399829581,
"HasRemnant": 0.0
},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "4c67d870b40beaa2997474b31cf94220",
"classification": {
"BBH": 0.032728258169574045,
"BNS": 7.773518901865963e-18,
"NSBH": 0.0032905335123128592,
"Terrestrial": 0.9639812083181131
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-07-26T08:41:15Z",
"superevent_id": "S230726ar",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-26T08:41:17.051108Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-26T08:41:17.051142Z",
"modified": "2023-07-26T08:41:17.057585Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1575,
"topic": "igwn.gwalert",
"uuid": "f7e58255-8434-4a2a-b5b0-719892a79776",
"title": "S230726ar - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230726ar/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230726ar/view/"
},
"event": {
"far": 1.611618149473108e-05,
"time": "2023-07-26T08:40:50.446Z",
"group": "CBC",
"search": "AllSky",
"area_50": 1305.3114417146674,
"area_90": 9463.875143401117,
"duration": null,
"pipeline": "gstlal",
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"topic": "igwn.gwalert",
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"title": "S230726at - PRELIMINARY",
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{
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"topic": "igwn.gwalert",
"uuid": "c375a30f-c340-418f-a2d1-c6e42bff2555",
"title": "S230726at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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{
"id": 1578,
"topic": "gcn.circular",
"uuid": "17546a7a-80fd-44a9-80bb-8d8008147764",
"title": "GRB 230723B: MITSuME Akeno optical afterglow candidate detection",
"submitter": "Hop gcn.circular",
"authors": "Mahito Sasada at Tokyo Institute of Technology <sasada@hp.phys.titech.ac.jp>",
"data": {
"date": "23/07/26 13:34:48 GMT",
"from": "Mahito Sasada at Tokyo Institute of Technology <sasada@hp.phys.titech.ac.jp>",
"title": "GCN CIRCULAR",
"number": "34268",
"subject": "GRB 230723B: MITSuME Akeno optical afterglow candidate detection"
},
"message_text": "M. Sasada, I. Takahashi, M. Niwano, S. Sato, S. Hayatsu, N. Higuchi, H. Takei, H. Seki, Y. Yatsu (Tokyo Tech), K. L. Murata (Kyoto U) and N. Kawai (Riken) report on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB 230723B (Page et al. GCN Circular #34234, Campana et al. #34236, Page et al. #34238, Lipunov et al. #34239, Siegle et al. #34240, Agui Fernandez et al. #34241, Adami et al. #34247, Osborne et al. #34248, Mangan et al. #34249, Quadri et al. #34250, Agui Fernandez et al. #34251, Leonini et al. #34252, Ruocco et al. #34253, Pavoni et al. #34254, Lopresti et al. #34259, Anderson et al. #34267) with the optical three color (g', Rc, and Ic) CCD cameras attached to the MITSuME 50 cm telescope Akeno.\n\nThe observation with a series of 10 sec exposures started at 2023-07-23 11:43:20 UT (48 seconds after the Swift/BAT detection). We stacked the images with good conditions. In the stacked image at 454 seconds after the burst, we detected an object of Ic=17.1+/-0.2 at the coordinate reported by Agui Fernandez et al. #34251. We also report the gâ-, Rc- and Ic-band 3-sigma upper limits of the stacked images.\n\nT0+[sec] |MID-UT | T-EXP[sec] | 3-sigma limits\n------------------------------------------------------------------------------------------------\n454 | 2023-07-23 11:50:06 | 220 | gâ>18.0, Rc>17.8, Ic>17.6\n1419 | 2023-07-23 12:06:11 | 1020 | gâ>18.6, Rc>18.5, Ic>18.2\n 3763 | 2023-07-23 12:45:15 | 1890 | g'>19.0, Rc>18.5, Ic>18.0\n------------------------------------------------------------------------------------------------\nT0+ : Elapsed time after the burst\nT-EXP: Total Exposure time\n\nWe used the PS1 catalog for flux calibration. The catalog magnitudes in PS1 r and i bands were converted to our Rc- and Ic-band magnitudes following Tonry et al. (2012), Table 6. The magnitudes are expressed in the AB system. The images were processed in real-time through the MITSuME GPU reduction pipeline (Niwano et al. 2021, PASJ, Vol.73, Issue 1, Pages 4-24; https://github.com/MNiwano/Eclaire).\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzc4NDk0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.fPChb82exQ4HQjJ-TDzBVd0QgiRjmLdGViRSI4VQtkU\n\n",
"published": "2023-07-26T13:34:59.560885Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T13:34:59.560919Z",
"modified": "2023-07-26T13:34:59.575217Z",
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{
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"topic": "lvk-users.beccatest",
"uuid": "15d60fb4-5337-4102-9292-8de2044e70cb",
"title": "Generic Message",
"submitter": "",
"authors": "",
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"message_text": "",
"published": "2024-05-24T23:01:45.659617Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:01:45.659638Z",
"modified": "2024-05-24T23:01:45.659647Z",
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{
"id": 1569,
"topic": "gcn.circular",
"uuid": "9018311f-bc45-4234-bc2c-3c539d008d15",
"title": "GRB 230723B: ATCA rapid radio follow-up",
"submitter": "Hop gcn.circular",
"authors": "Gemma Anderson at Curtin U <gemma.anderson@curtin.edu.au>",
"data": {
"date": "23/07/26 05:29:00 GMT",
"from": "Gemma Anderson at Curtin U <gemma.anderson@curtin.edu.au>",
"title": "GCN CIRCULAR",
"number": "34267",
"subject": "GRB 230723B: ATCA rapid radio follow-up"
},
"message_text": "G. E. Anderson (Curtin), A. Gulati (USyd), J. K. Leung (USyd), A. J. van der Horst (GWU), L. Rhodes (Oxford), S. Chastain (UNM) on behalf of the PanRadio GRB collaboration\n\nThe Australia Telescope Compact Array (ATCA) performed rapid-response follow-up observations of the long GRB 230723B (Page et al. GCN 34234) at 5.5, 9, 16.7, and 21.2 GHz as part of the Large ATCA âPanRadio GRBâ follow-up programme C3542 (PI. Anderson). ATCA was on target observing at 2023-07-23 11:51 UT, just 9 minutes post-burst and observed for 4 hrs. There is no radio source coincident with the enhanced XRT position (Page et al. GCN 34238) with 3 sigma upper limits of 150, 90, 90 and 150 microJy/beam at 5.5, 9.0, 16.7 and 21.2 GHz, respectively. Further observations are planned.\n\nWe thank the CSIRO Space and Astronomy staff for supporting these observations and maintaining the ATCA rapid-response observing mode.\n\nWe acknowledge the Gomeroi people as the traditional owners of the Observatory site. The Australia Telescope Compact Array is part of the Australia Telescope National Facility (https://ror.org/05qajvd42) which is funded by the Australian Government for operation as a National Facility managed by CSIRO.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzQ5MzQ1LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.NB7nteAW2fKf1pFOaeDN8ZeudqtAs6ExsH0firou_YA\n\n",
"published": "2023-07-26T05:29:11.548029Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-26T05:29:11.548055Z",
"modified": "2023-07-26T05:29:11.558110Z",
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{
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"topic": "igwn.gwalert",
"uuid": "68e4014b-923a-443e-8a4b-ba5009ab194b",
"title": "S230726ag - PRELIMINARY",
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{
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"topic": "igwn.gwalert",
"uuid": "d08ad3dd-3d4c-4f18-91c5-d8b19acfdec6",
"title": "S230726ag - PRELIMINARY",
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"data": {
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"time_created": "2023-07-26T07:13:54Z",
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{
"id": 1572,
"topic": "igwn.gwalert",
"uuid": "e9396808-6d96-48b0-b7d0-ac10362e5a18",
"title": "S230726al - PRELIMINARY",
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"data": {
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"time_created": "2023-07-26T08:17:08Z",
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"retracted": false,
"created": "2023-07-26T08:17:10.102849Z",
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{
"id": 1573,
"topic": "igwn.gwalert",
"uuid": "6d068a20-930d-4755-915d-a375503f84a3",
"title": "S230726al - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time_created": "2023-07-26T08:21:43Z",
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"created": "2023-07-26T08:21:44.139990Z",
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"topic": "igwn.gwalert",
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"title": "S231028bd - PRELIMINARY",
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"published": "2023-10-31T23:27:48.299641Z",
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"retracted": false,
"created": "2023-10-31T23:27:48.299668Z",
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{
"id": 11688,
"topic": "lvk-users.beccatest",
"uuid": "0e592b8d-d851-4869-9f44-0d9ae84b9bde",
"title": "Generic Message",
"submitter": "",
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1400627000
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"message_text": "",
"published": "2024-05-24T23:03:19.810188Z",
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"created": "2024-05-24T23:03:19.810201Z",
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{
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"topic": "lvk-users.beccatest",
"uuid": "47c490ea-9444-4e07-9f5a-d319457f4797",
"title": "Generic Message",
"submitter": "",
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1400627000
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"message_text": "",
"published": "2024-05-24T23:03:26.830256Z",
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"retracted": false,
"created": "2024-05-24T23:03:26.830269Z",
"modified": "2024-05-24T23:03:26.830274Z",
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},
{
"id": 1582,
"topic": "gcn.circular",
"uuid": "f660e206-5ff9-4db5-a2d6-1652bb6686fc",
"title": "GRB 230723B: Further CAHA observations and host galaxy detection",
"submitter": "Hop gcn.circular",
"authors": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"data": {
"date": "23/07/26 17:36:30 GMT",
"from": "Antonio de Ugarte Postigo at OCA <deugarte@oca.eu>",
"title": "GCN CIRCULAR",
"number": "34271",
"subject": "GRB 230723B: Further CAHA observations and host galaxy detection"
},
"message_text": "J.F. Agui Fernandez (IAA-CSIC), A. de Ugarte Postigo (OCA/CNRS), C.C. Thoene (ASU-CAS), J. Flores and Ana Guijarro Roman (CAHA) report:\n\nWe have performed follow-up observations on the GRB 230723B field (Page et al. GCN 34324, Osborne et al. GCN 34248) with CAFOS in the 2.2m telescope at the Calar Alto Observatory in Almeria, Spain. Observations consisted of 9x360s in i-band, starting at 2023-07-25T20:46:11 UT with a mean epoch 2.393 days after the burst. We detect the object reported in Agui Fernandez et al. (GCN 34251) at a magnitude consistent with our previous observation.\nThe early optical detection of the transient at a consistent location by Sasada et al. (GCN 34268) indicates that the detection in the first Calar Alto observation was already dominated by the host galaxy contribution. The interpolation from the observation of Sasada et al. (GCN 34251) to the one of Agui Fernandez et al. (GCN 34251) indicates a decay rate of at least alpha=1.1 (where F_nu ~ t^-alpha). Extrapolating this, the GRB afterglow should be dimmer than 24 mag at the time of our follow-up observations. We do note, that the host galaxy should be in the range for emission line spectroscopy with 8-10m telescopes.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwMzkyOTk1LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.oMBMlD2lkzZF4J27z9d-Z_UKOJHG8nJXlk-QYu5tyO8\n\n",
"published": "2023-07-26T17:36:40.305518Z",
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{
"id": 2495,
"topic": "gcn.circular",
"uuid": "ca7c968a-45c7-448b-80b2-75e22a92051f",
"title": "GRB 230826A: Mondy optical observations",
"submitter": "Hop gcn.circular",
"authors": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"data": {
"date": "23/08/27 01:28:38 GMT",
"from": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>",
"title": "GCN CIRCULAR",
"number": "34567",
"subject": "GRB 230826A: Mondy optical observations"
},
"message_text": "N. Pankov (HSE, IKI), E. Klunko (ISTP), A. Pozanenko (IKI), S. Belkin (IKI) on behalf of GRB-IKI-FuN report.\n\nWe observed the field of GRB 230826A detected by Fermi GBM (Fermi GBM Team, GCN 34564) and Swift (Eyles-Ferris et al, 34565) with AZT-33IK telescope of Sayan observatory (Mondy). Observations started on 2023-08-26 220:06:00 (UT) (i.e. ~33 min since trigger). We obtained\nseries of images in R-filter. We do not detect evident candidate within XRT error circle (Swift-XRT Position: +05h 32m 14.20s +66d 07' 30.0\" 5.3 arcsec, radius) in a stacked image. Preliminary photometry is following:\n\nDate UT start t-T0 Filter Exp. OT Err. UL(3sigma)\n (mid, days) (s)\n\n2023-08-26 20:06:00 0.038345 R 44*60 n/d n/d 22.0\n\nWe note the presence of the object USNO-B1.0 1561-0095652 at 8.8 arces from the Swift-XRT Position. Measured brightness of the object is R = 18.1 +/- 0.01 what is brighter than USNO-B1.0 R2\u0018.22 magnitude.\n\nAll photometry is based on nearby USNO-B1.0 stars, R2 magnitudes\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkzMDk5NzIzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Fjffm8bxupQY5IQjc_OK8zjAL1PJvF1W8l3tK8BtTPA\n\n",
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{
"id": 1592,
"topic": "gcn.circular",
"uuid": "c16cfc5d-fede-4484-a7bf-559ce3d4b86f",
"title": "GRB 230727A: Swift/BAT-GUANO detection of a burst",
"submitter": "Hop gcn.circular",
"authors": "Jimmy DeLaunay at University of Alabama <delauj2@gmail.com>",
"data": {
"date": "23/07/28 01:05:25 GMT",
"from": "Jimmy DeLaunay at University of Alabama <delauj2@gmail.com>",
"title": "GCN CIRCULAR",
"number": "34280",
"subject": "GRB 230727A: Swift/BAT-GUANO detection of a burst"
},
"message_text": "James DeLaunay (UAlabama), Gayathri Raman (PSU), Samuele Ronchini (PSU), Aaron Tohuvavohu (U Toronto), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report:\n\nSwift/BAT did not localize GRB 230727A onboard (T0: 2023-07-27T11:03:06.85 UTC, Fermi Trig 712148591, GCN 34275).\n\nThe Fermi notice, distributed in near real-time, triggered the Swift Mission Operations Center operated Gamma-ray Urgent Archiver for Novel Opportunities (GUANO; Tohuvavohu et al. 2020, ApJ, 900, 1).\n\nUpon trigger by this notice, GUANO sent a command to the Swift Burst Alert Telescope (BAT) to save 200 seconds of BAT event-mode data from [-50,+150] seconds around the time of the burst. All the requested event mode data was delivered to the ground.\n\nThe BAT likelihood search, NITRATES (DeLaunay + Tohuvavohu 2022, ApJ, 941, 169), detects the burst with a sqrt(TS) of 11 in a 2.048 s analysis time bin.\n\nNITRATES results, independently, are ambiguous with respect to whether this burst originates from in or outside the BAT coded FOV, with a borderline DeltaLLHOut of 7.4.\nThe Fermi GBM localization (GCN 34275) has this burst significantly outside of the BAT coded FOV\n\nSee Section 9.1 and Figures 10 and 17 in the NITRATES paper for brief descriptions and interpretation of sqrt(TS), DeltaLLHPeak, and DeltaLLHOut.\n\nGUANO is a fully autonomous, extremely low latency, spacecraft\ncommanding pipeline designed for targeted recovery of BAT event mode\ndata around the times of compelling astrophysical events to enable\nmore sensitive GRB searches.\n\nA live reporting of Swift/BAT event data recovered by GUANO can be\nfound at: https://www.swift.psu.edu/guano/\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTA2MzMwLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.7Zq7WHUIWbuhJMDXIek_ix_K1rR-GqMh1a0Std90zkg\n\n",
"published": "2023-07-28T01:05:36.580816Z",
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"retracted": false,
"created": "2023-07-28T01:05:36.580837Z",
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{
"id": 1593,
"topic": "gcn.circular",
"uuid": "777aa40d-892e-4105-95e7-03b73c7d284c",
"title": "Swift GRB230728.12: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "23/07/28 02:56:43 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34281",
"subject": "Swift GRB230728.12: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,\nG.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gres, N.M. Budnev\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nA. Gabovich, V.Yurkov\n(Blagoveschensk Educational State University)\n\n\nMASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) was pointed to the Swift GRB230728.12 (trigger No 1181187,22h 54m 09.36s , +28d 09m 03.6s, R=0.05) errorbox 19 sec after notice time and 36 sec after trigger time at 2023-07-28 02:50:40 UT, with upper limit up to 17.2 mag. The observations began at zenith distance = 64 deg. The sun altitude is -33.9 deg.\n\nThe galactic latitude b = -28 deg., longitude l = 94 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"46027\n\nWe obtain a following upper limits.\n\nTmid-T0 | Site |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____|_______|______|________\n\n 42 | MASTER-SAAO | P/ | 10 | 16.3 |\n 42 | MASTER-SAAO | C | 10 | 17.2 |\n 61 | MASTER-SAAO | P/ | 10 | 16.4 |\n 61 | MASTER-SAAO | C | 10 | 17.2 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTEzMDA4LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.Leslw_2dyaGbhhkt1jBAT-z0v6tK-UmRoXK8oDkoEuI\n\n",
"published": "2023-07-28T02:56:53.559534Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T02:56:53.559552Z",
"modified": "2023-07-28T02:56:53.567418Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1594,
"topic": "gcn.circular",
"uuid": "b46e0810-9da9-42f4-90cb-c51547d2cf3e",
"title": "GRB 230728A: Swift detection of a burst",
"submitter": "Hop gcn.circular",
"authors": "David Palmer at LANL <palmer@lanl.gov>",
"data": {
"date": "23/07/28 03:07:03 GMT",
"from": "David Palmer at LANL <palmer@lanl.gov>",
"title": "GCN CIRCULAR",
"number": "34282",
"subject": "GRB 230728A: Swift detection of a burst"
},
"message_text": "\nC. Salvaggio (INAF-OAB), P. D'Avanzo (INAF-OAB), S. Laha (GSFC/UMBC),\nD. M. Palmer (LANL), T. M. Parsotan (GSFC/UMBC/CRESSTII) and\nM. H. Siegel (PSU) report on behalf of the Neil Gehrels Swift\nObservatory Team:\n\nAt 02:50:03 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 230728A (trigger\u001181187). Swift slewed immediately to the burst.\nThe BAT on-board calculated location is\nRA, Dec 343.539, +28.151 which is\n RA(J2000) = 22h 54m 09s\n Dec(J2000) = +28d 09' 03\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including\nsystematic uncertainty). Due to a telemetry gap, BAT lightcurve information\nis not immediately available.\n\nThe XRT began observing the field at 02:51:33.5 UT, 90.3 seconds after\nthe BAT trigger. Using promptly downlinked data we find a bright,\nuncatalogued X-ray source with an enhanced position: RA, Dec 343.51530,\n28.17470 which is equivalent to:\n RA(J2000) = 22h 54m 03.67s\n Dec(J2000) = +28d 10' 28.9\"\nwith an uncertainty of 1.9 arcseconds (radius, 90% containment). This\nlocation is 113 arcseconds from the BAT onboard position, within the\nBAT error circle. This position may be improved as more data are\nreceived; the latest position is available at\nhttps://www.swift.ac.uk/sper.\n\nA power-law fit to a spectrum formed from promptly downlinked event\ndata gives a column density in excess of the Galactic value (6.29 x\n10^20 cm^-2, Willingale et al. 2013), with an excess column of 7.2\n(+2.52/-2.21) x 10^21 cm^-2 (90% confidence).\n\nThe initial flux in the 2.5 s image was 7.13e-10 erg cm^-2 s^-1 (0.2-10\nkeV).\n\nUVOT took a finding chart exposure of 150 seconds with the White filter\nstarting 99 seconds after the BAT trigger. No credible afterglow candidate has\nbeen found in the initial data products. The 2.7'x2.7' sub-image covers 100% of\nthe XRT error circle. The typical 3-sigma upper limit has been about 19.6 mag.\nThe 8'x8' region for the list of sources generated on-board covers 100% of the\nXRT error circle. The list of sources is typically complete to about 18 mag. No\ncorrection has been made for the expected extinction corresponding to E(B-V) of\n0.079.\n\nBurst Advocate for this burst is C. Salvaggio (chiara.salvaggio AT inaf.it).\nPlease contact the BA by email if you require additional information\nregarding Swift followup of this burst. In extremely urgent cases, after\ntrying the Burst Advocate, you can contact the Swift PI by phone (see\nSwift TOO web site for information: http://www.swift.psu.edu/)\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTEzNjI5LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.-lfz_NxGF5o9452y8FwlWXkmMv2A9GVynJPKK0KuIIk\n\n",
"published": "2023-07-28T03:07:15.023829Z",
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"retracted": false,
"created": "2023-07-28T03:07:15.023848Z",
"modified": "2023-07-28T03:07:15.030188Z",
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{
"id": 4235,
"topic": "igwn.gwalert",
"uuid": "4ee0aba6-91f9-4b2b-acc0-ae7d259e6f3f",
"title": "S231027bk - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"message_text": "",
"published": "2023-10-31T23:27:48.360754Z",
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"retracted": false,
"created": "2023-10-31T23:27:48.360782Z",
"modified": "2023-10-31T23:27:48.366050Z",
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},
{
"id": 1746,
"topic": "igwn.gwalert",
"uuid": "8b5194d3-1395-4396-aa27-d754c988090f",
"title": "S230801at - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"event": {
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"time": "2023-08-01T23:58:25.059Z",
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"time_created": "2023-08-01T23:59:28Z",
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"published": "2023-08-01T23:59:29.738726Z",
"message_parser": "IGWN Alert Avro Parser v1",
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"created": "2023-08-01T23:59:29.738761Z",
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{
"id": 1595,
"topic": "igwn.gwalert",
"uuid": "2559409d-47df-45f3-bd5b-99c4195c8a1d",
"title": "S230728ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-07-28T05:36:16.021Z",
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"sequence_num": 1,
"time_created": "2023-07-28T05:36:40Z",
"superevent_id": "S230728ac",
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},
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"published": "2023-07-28T05:36:41.898421Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T05:36:41.898443Z",
"modified": "2023-07-28T05:36:41.906992Z",
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},
{
"id": 1596,
"topic": "igwn.gwalert",
"uuid": "805e814c-dc2c-4e4c-a3aa-9c83979067c4",
"title": "S230728ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 2,
"time_created": "2023-07-28T05:41:14Z",
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"published": "2023-07-28T05:41:16.459714Z",
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"retracted": false,
"created": "2023-07-28T05:41:16.459735Z",
"modified": "2023-07-28T05:41:16.465873Z",
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{
"id": 1597,
"topic": "igwn.gwalert",
"uuid": "811d4018-2928-4eb3-811f-5a681e5899c8",
"title": "S230728ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 1,
"time_created": "2023-07-28T06:35:01Z",
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"published": "2023-07-28T06:35:02.709618Z",
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"retracted": false,
"created": "2023-07-28T06:35:02.709648Z",
"modified": "2023-07-28T06:35:02.714988Z",
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},
{
"id": 1598,
"topic": "igwn.gwalert",
"uuid": "0ae80950-00a1-4d1f-bbbf-2e3dcedd16fb",
"title": "S230728ak - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 2,
"time_created": "2023-07-28T06:39:35Z",
"superevent_id": "S230728ak",
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},
"message_text": "",
"published": "2023-07-28T06:39:37.394816Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T06:39:37.394837Z",
"modified": "2023-07-28T06:39:37.400576Z",
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},
{
"id": 2503,
"topic": "igwn.gwalert",
"uuid": "d66f7f2e-c1cf-408b-92a7-147f02b6791b",
"title": "S230827u - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827u/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827u/view/"
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"time": "2023-08-27T07:12:54.194Z",
"group": "CBC",
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"area_90": 2527.9524593760348,
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"sequence_num": 2,
"time_created": "2023-08-27T07:18:09Z",
"superevent_id": "S230827u",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:18:10.542768Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:18:10.542789Z",
"modified": "2023-08-27T07:18:10.546561Z",
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},
{
"id": 1607,
"topic": "gcn.circular",
"uuid": "24941020-9564-4202-987c-5df7c82c087c",
"title": "GRB 230728A: LCOGT Optical Upper Limit",
"submitter": "Hop gcn.circular",
"authors": "Robert Strausbaugh at University of Minnesota <rstrausb@umn.edu>",
"data": {
"date": "23/07/28 14:44:26 GMT",
"from": "Robert Strausbaugh at University of Minnesota <rstrausb@umn.edu>",
"title": "GCN CIRCULAR",
"number": "34289",
"subject": "GRB 230728A: LCOGT Optical Upper Limit"
},
"message_text": "R. Strausbaugh (University of Minnesota), A. Cucchiara (NASA) report on\nbehalf of a larger collaboration:\n\nWe observed the GRB 230728A (Salvaggio et al., GCN 34282) field with the\nLCOGT 1-meter Sinistro instrument at the Teide Observatory, Tenerife site,\non July 28, from 03:15 to 03:48 UT (corresponding to 0.42 to 0.97 hours\nfrom the GRB trigger time) with the SDSS r and i filters.\n\nWe performed a series of 3x300s exposures in each band. We do not detect\nany source within the enhanced Swift-XRT error region (Evans et al., GCN\n34286) in either band, consistent with later optical upper limits (Xu et\nal., GCN 34285).\n\nThe following upper limits are calculated using the PanSTARRS catalog as\nreference:\n\nr > 23.3\ni > 22.8\n\nThese magnitudes are not corrected for galactic extinction.\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTU1NDcxLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.NWbSEn4l63Z_XVi-8KBZ7W8aTOizTMtqRQwRqeusv90\n\n",
"published": "2023-07-28T14:44:37.019137Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T14:44:37.019153Z",
"modified": "2023-07-28T14:44:37.022706Z",
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},
{
"id": 2929,
"topic": "hermes.message",
"uuid": "c5be3cff-fc43-4d1b-9d16-cc0a0483073f",
"title": "INTEGRAL follow-up of S230911e",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230911e at 2023-09-11T04:13:39.000\n\n\nSPI-ACS excesses:\nat T0+-78.15 FAP = 0.484\nat T0+233.65 FAP = 0.624\n\n\n\n\nnext break in data in 5.7 hr: 2023-09-11T09:53:07, for 9.3 hr",
"published": "2023-09-12T10:48:41.569428Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-12T10:48:41.569440Z",
"modified": "2023-09-12T10:48:41.578150Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11690,
"topic": "lvk-users.beccatest",
"uuid": "78ec0d11-44d1-4649-8bf1-965e974692ef",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
"ifo": [
"L1"
],
"time": [
1400627100
],
"range": 157.32193458914702
},
"message_text": "",
"published": "2024-05-24T23:05:01.173095Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:05:01.173109Z",
"modified": "2024-05-24T23:05:01.173114Z",
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{
"id": 11691,
"topic": "lvk-users.beccatest",
"uuid": "22d064b3-9ca0-42c7-a47e-0cdda17fdb79",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
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"time": [
1400627100
],
"range": 53.37911271128101
},
"message_text": "",
"published": "2024-05-24T23:05:10.194997Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:05:10.195010Z",
"modified": "2024-05-24T23:05:10.195015Z",
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},
{
"id": 1608,
"topic": "gcn.circular",
"uuid": "932eac9e-677d-4250-9367-cf1687774395",
"title": "GRB 230728A: Fermi GBM Observation",
"submitter": "Hop gcn.circular",
"authors": "Sarah Dalessi at UAH <sd0104@uah.edu>",
"data": {
"date": "23/07/28 18:51:37 GMT",
"from": "Sarah Dalessi at UAH <sd0104@uah.edu>",
"title": "GCN CIRCULAR",
"number": "34290",
"subject": "GRB 230728A: Fermi GBM Observation"
},
"message_text": "S. Dalessi (UAH) and C. Meegan (UAH) report on behalf of\nthe Fermi Gamma-ray Burst Monitor Team:\n\n\"At 02:50:05.24 UT on 28 July 2023, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 230728A (trigger 712205410/230728118).\nwhich was also detected by Swift BAT (Salvaggio et al. 2023, GCN 34282) and Swift XRT (Evans et al. 2023, GCN 34286).\nThe Fermi GBM on-ground location is consistent with the Swift XRT position.\n\nThe angle from the Fermi LAT boresight is 66 degrees.\n\nThe GBM light curve consists of multiple peaks with a duration (T90)\nof about 19 s (50-300 keV). The time-averaged spectrum\nfrom T0-6.1 to T0+12.3 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -1.2 +/- 0.2 and the cutoff energy,\nparameterized as Epeak, is 95 +/- 15 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.7 +/- 0.1)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0-2.6 s in the 10-1000 keV band is 3.1 +/- 0.2 ph/s/cm^2.\n\nA Band function fits the spectrum equally well\nwith Epeak= 78 +/- 20 keV, alpha = -1.1 +/- 0.3 and beta = -2.4 +/- 0.4.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTcwMzAyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.TtYdedONIZ-Q39MNnyjy3EHKHa6GIWyFuoXDdMK1dyM\n\n",
"published": "2023-07-28T18:51:52.800277Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T18:51:52.800305Z",
"modified": "2023-07-28T18:51:52.806299Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1609,
"topic": "gcn.circular",
"uuid": "c6a360b3-8882-4f55-af53-837556e2bdcd",
"title": "GRB 230728A: BOOTES-1 optical upper limit",
"submitter": "Hop gcn.circular",
"authors": "Youdong HU at IAA-CSIC <huyoudong072@hotmail.com>",
"data": {
"date": "23/07/28 19:11:16 GMT",
"from": "Youdong HU at IAA-CSIC <huyoudong072@hotmail.com>",
"title": "GCN CIRCULAR",
"number": "34291",
"subject": "GRB 230728A: BOOTES-1 optical upper limit"
},
"message_text": "Y.-D. Hu, E. Fernandez-Garcia, A. J. Castro-Tirado, M.D. Caballero-Garcia, R. Sanchez-Ramirez, I. Perez-Garcia and S. Guziy (IAA-CSIC), C. Perez del Pulgar, A. Castellon, I. Carrasco and A. Reina (Univ. de Malaga) and F. Rendon (IAA-CSIC and INTA-CEDEA) on behalf of a larger collaboration, report:\n\nFollowing the detection of GRB 230728A by Swift (Salvaggio et al., GCNC 34282), the 0.3m BOOTES-1B robotic telescope in Mazagon (Huelva, Spain) automatically responded to this burst on Jul. 28 at 02:50:54 UT (i.e. ~51 s after trigger). In the co-added frame (60 x 10 s, clear filter), no source is detected within the enhanced XRT position (Evans et al., GCNC 34286) down to 19.9 mag.\n\nThis non-detection is consistent with the upper limits reported by MASTER (Lipunov et al. GCNC 34281), NOT (Xu et al. GCNC 34285), UVOT (Oates et al. GCNC 34288) and LCOGT (Strausbaugh et al. GCNC 34289).\n\nWe thank the staff at INTA-CEDEA for their excellent support.\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNTcxNDgyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.O4oWrt9TcWHWCO5dHEGT3GBT78qjwFlxcquaMuZfdSY\n\n",
"published": "2023-07-28T19:11:28.166461Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-28T19:11:28.166480Z",
"modified": "2023-07-28T19:11:28.170643Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1610,
"topic": "igwn.gwalert",
"uuid": "80e6292e-8553-4104-94a5-ba1601c63933",
"title": "S230728ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728ax/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728ax/view/"
},
"event": {
"far": 5.97544e-06,
"time": "2023-07-28T20:29:31.469Z",
"group": "Burst",
"search": "BBH",
"area_50": 2737.775870678827,
"area_90": 8907.423456626115,
"duration": 0.067701,
"pipeline": "CWB",
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"sequence_num": 1,
"time_created": "2023-07-28T20:30:48Z",
"superevent_id": "S230728ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T20:30:49.213877Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T20:30:49.213906Z",
"modified": "2023-07-28T20:30:49.218330Z",
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},
{
"id": 1611,
"topic": "igwn.gwalert",
"uuid": "3c029c81-3da4-4718-ba6f-22c5052b1eb6",
"title": "S230728ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230728ax/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230728ax/view/"
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"event": {
"far": 5.97544e-06,
"time": "2023-07-28T20:29:31.469Z",
"group": "Burst",
"search": "BBH",
"area_50": 2737.775870678827,
"area_90": 8907.423456626115,
"duration": 0.067701,
"pipeline": "CWB",
"properties": {},
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"skymap_hash": "fd9873a01c3b0eb5c7bd51649b1024ec",
"classification": {},
"skymap_version": 0,
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},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-28T20:35:24Z",
"superevent_id": "S230728ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-28T20:35:24.977382Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-28T20:35:24.977402Z",
"modified": "2023-07-28T20:35:24.980880Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 2505,
"topic": "igwn.gwalert",
"uuid": "1209b260-18bd-4dc6-b1d0-29171633cd1d",
"title": "S230827w - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230827w/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230827w/view/"
},
"event": {
"far": 1.20749e-05,
"time": "2023-08-27T07:15:01.498Z",
"group": "Burst",
"search": "AllSky",
"area_50": 447.34351289755205,
"area_90": 1690.3374014552905,
"duration": 0.022401,
"pipeline": "CWB",
"properties": {},
"instruments": [
"H1",
"L1"
],
"significant": false,
"skymap_hash": "a1eec73cbfb75e88ab7cf64397d3954d",
"classification": {},
"skymap_version": 0,
"central_frequency": 690.246338
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-27T07:20:49Z",
"superevent_id": "S230827w",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-27T07:20:50.067216Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:20:50.067235Z",
"modified": "2023-08-27T07:20:50.070664Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 2506,
"topic": "gcn.circular",
"uuid": "8ee0f747-b3e1-4028-994b-da818271a127",
"title": "GRB 230826A: Swift-XRT refined Analysis",
"submitter": "Hop gcn.circular",
"authors": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"data": {
"date": "23/08/27 07:26:29 GMT",
"from": "Phil Evans at U of Leicester <pae9@star.le.ac.uk>",
"title": "GCN CIRCULAR",
"number": "34568",
"subject": "GRB 230826A: Swift-XRT refined Analysis"
},
"message_text": "J.A. Kennea (PSU), A. Tohuvavohu (U. Toronto), J.P. Osborne (U.\nLeicester), K.L. Page (U. Leicester), M. Capalbi (INAF-IASFPA), M.\nPerri (SSDC & INAF-OAR), V. D'Elia (SSDC & INAF-OAR), D.N. Burrows\n(PSU) and P.A. Evans report on behalf of the Swift-XRT team:\n\nWe have analysed 8.3 ks of XRT data for GRB 230826A, from 65 s to 29.5\nks after the BAT trigger. The data comprise 56 s in Windowed Timing\n(WT) mode (the first 8 s were taken while Swift was slewing) with the\nremainder in Photon Counting (PC) mode. The refined XRT position is RA,\nDec = 83.0642, +66.1244 which is equivalent to:\n\nRA (J2000): 05 32 15.41\nDec(J2000): +66 07 27.9\n\nwith an uncertainty of 3.5 arcsec (radius, 90% confidence).\n\nThe light curve can be modelled with a series of power-law decays. The\ninitial decay index is alpha=3.44 (+0.25, -0.24). At T+213 s the decay\nflattens to an alpha of -0.06 (+0.24, -0.26) before breaking again at\nT+1264 s to a final decay with index alpha=1.39 (+0.22, -0.14).\n\nA spectrum formed from the WT mode data can be fitted with an absorbed\npower-law with a photon spectral index\tof 2.93 (+0.32, -0.29). The\nbest-fitting absorption column is 4.7 (+1.0, -0.9) x 10^21 cm^-2, in\nexcess of the Galactic value of 1.5 x 10^21 cm^-2 (Willingale et al.\n2013). The PC mode spectrum has a photon index of 2.15 (+0.22, -0.21)\nand a best-fitting absorption column of 4.4 (+1.1, -1.0) x 10^21 cm^-2.\nThe counts to observed (unabsorbed) 0.3-10 keV flux conversion factor\ndeduced from this spectrum is 3.6 x 10^-11 (6.3 x 10^-11) erg cm^-2\ncount^-1.\n\nA summary of the PC-mode spectrum is thus:\nTotal column:\t 4.4 (+1.1, -1.0) x 10^21 cm^-2\nGalactic foreground: 1.5 x 10^21 cm^-2\nExcess significance: 4.8 sigma\nPhoton index:\t 2.15 (+0.22, -0.21)\n\nIf the light curve continues to decay with a power-law decay index of\n1.39, the count rate at T+24 hours will be 2.8 x 10^-3 count s^-1,\ncorresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.0 x\n10^-13 (1.8 x 10^-13) erg cm^-2 s^-1.\n\nThe results of the XRT-team automatic analysis are available at\nhttp://www.swift.ac.uk/xrt_products/01187463.\n\nThis circular is an official product of the Swift-XRT team.\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkzMTIxMTk0LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.IkN5xbnIvIQAb4W8rf8CTTvXs_nFbLr_MGRncQggpls\n\n",
"published": "2023-08-27T07:26:43.949226Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-27T07:26:43.949244Z",
"modified": "2023-08-27T07:26:43.953456Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 3269,
"topic": "hermes.message",
"uuid": "084d8366-63a5-4f71-8f3a-19fb5be72614",
"title": "INTEGRAL follow-up of S230915x",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230915x at 2023-09-15T06:06:59.000\n\n\nSPI-ACS excesses:\nat T0+1.53 FAP = 0.184\nat T0+136.15 FAP = 0.219\nat T0+40.95 FAP = 0.453\nat T0+-12.17 FAP = 0.556\nat T0+25.3 FAP = 0.697\n\n\n\n\nnext break in data in 35 hr: 2023-09-16T17:33:35, for about 9 hr",
"published": "2023-09-21T21:01:30.021824Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-09-21T21:01:30.021851Z",
"modified": "2023-09-21T21:01:30.038425Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 11696,
"topic": "lvk-users.beccatest",
"uuid": "09cd0f38-7c50-4e61-8be9-cbf89a0508f5",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
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"time": [
1400627400
],
"range": 157.19288596428285
},
"message_text": "",
"published": "2024-05-24T23:10:02.018785Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:10:02.018804Z",
"modified": "2024-05-24T23:10:02.018811Z",
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"targets": []
},
{
"id": 11697,
"topic": "lvk-users.beccatest",
"uuid": "ecbc40df-37fe-4eee-a56d-e3fa72c7b31b",
"title": "Generic Message",
"submitter": "",
"authors": "",
"data": {
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1400627400
],
"range": 53.260102703678974
},
"message_text": "",
"published": "2024-05-24T23:10:06.039462Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:10:06.039480Z",
"modified": "2024-05-24T23:10:06.039487Z",
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{
"id": 11698,
"topic": "lvk-users.beccatest",
"uuid": "5249ab65-e68b-44bf-b4d8-76ebbd9f7209",
"title": "Generic Message",
"submitter": "",
"authors": "",
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1400627500
],
"range": 157.19165733911234
},
"message_text": "",
"published": "2024-05-24T23:11:39.207945Z",
"message_parser": "",
"retracted": false,
"created": "2024-05-24T23:11:39.207958Z",
"modified": "2024-05-24T23:11:39.207963Z",
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},
{
"id": 1637,
"topic": "igwn.gwalert",
"uuid": "12fdb2b1-78ed-4b64-9f19-22452cdf80c4",
"title": "S230729au - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
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"time": "2023-07-29T15:13:57.840Z",
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"sequence_num": 1,
"time_created": "2023-07-29T15:14:23Z",
"superevent_id": "S230729au",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T15:14:24.607827Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T15:14:24.607847Z",
"modified": "2023-07-29T15:14:24.614342Z",
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},
{
"id": 1638,
"topic": "igwn.gwalert",
"uuid": "02072bd6-3f64-4652-8e72-27df40c65282",
"title": "S230729au - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"sequence_num": 2,
"time_created": "2023-07-29T15:18:58Z",
"superevent_id": "S230729au",
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},
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"published": "2023-07-29T15:18:59.274224Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T15:18:59.274244Z",
"modified": "2023-07-29T15:18:59.278022Z",
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"targets": []
},
{
"id": 1639,
"topic": "gcn.circular",
"uuid": "7259e96f-4a26-41cb-ab77-5a5ff84c7342",
"title": "IceCube-230727A: No candidates from the Zwicky Transient Facility",
"submitter": "Hop gcn.circular",
"authors": "Jannis Necker at DESY <jannis.necker@desy.de>",
"data": {
"date": "23/07/29 15:47:21 GMT",
"from": "Jannis Necker at DESY <jannis.necker@desy.de>",
"title": "GCN CIRCULAR",
"number": "34294",
"subject": "IceCube-230727A: No candidates from the Zwicky Transient Facility"
},
"message_text": "Jannis Necker (DESY), Simeon Reusch (DESY), Robert Stein (Caltech), Sven Weimann (Ruhr University Bochum) and Anna Franckowiak (DESY/Ruhr University Bochum) report:\n\nOn behalf of the Zwicky Transient Facility (ZTF) and Global Relay of Observatories Watching Transients Happen (GROWTH) collaborations:\n\nAs part of the ZTF neutrino follow up program (Stein et al. 2022), we observed the localization region of the neutrino event IceCube-230727A (Blaufuss et. al, GCN 34276) with the Palomar 48-inch telescope, equipped with the 47 square degree ZTF camera (Bellm et al. 2019, Graham et al. 2019). We started observations in the g- and r-band beginning at 2023-07-28 09:54 UTC, approximately 17.8 hours after event time. We covered 72.1% (1.7 sq deg) of the reported localization region. This estimate accounts for chip gaps. Each exposure was 300s with a typical depth of 21.0 mag.\n\nThe images were processed in real-time through the ZTF reduction and image subtraction pipelines at IPAC to search for potential counterparts (Masci et al. 2019). AMPEL (Nordin et al. 2019, Stein et al. 2021) was used to search the alerts database for candidates. We reject stellar sources (Tachibana and Miller 2018) and moving objects, and apply machine learning algorithms (Mahabal et al. 2019).\n\nNo candidate counterparts were detected.\n\nZTF and GROWTH are worldwide collaborations comprising Caltech, USA; IPAC, USA; WIS, Israel; OKC, Sweden; JSI/UMd, USA; DESY, Germany; TANGO, Taiwan; UW Milwaukee, USA; LANL, USA; TCD, Ireland; IN2P3, France.\n\nGROWTH acknowledges generous support of the NSF under PIRE Grant No 1545949.\nAlert distribution service provided by DIRAC@UW (Patterson et al. 2019).\nAlert database searches are done by AMPEL (Nordin et al. 2019).\nAlert filtering is performed with the nuztf (Stein et al. 2021, https://github.com/desy-multimessenger/nuztf).\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwNjQ1NjQ2LCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.DbyDO_zMkdRkdxHcVwy1CCNKroQeXEYEltDLQibM4yM\n\n",
"published": "2023-07-29T15:47:36.330260Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-07-29T15:47:36.330280Z",
"modified": "2023-07-29T15:47:36.337371Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1640,
"topic": "igwn.gwalert",
"uuid": "5a150d48-27b5-4098-997e-18304c204634",
"title": "S230729ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-07-29T16:26:45.206Z",
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"duration": null,
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"sequence_num": 1,
"time_created": "2023-07-29T16:27:19Z",
"superevent_id": "S230729ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T16:27:20.427627Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T16:27:20.427647Z",
"modified": "2023-07-29T16:27:20.433216Z",
"nonlocalizedevents": [],
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},
{
"id": 1641,
"topic": "igwn.gwalert",
"uuid": "103bd66e-53a4-40c6-97de-497c0b22af91",
"title": "S230729ax - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"far": 1.899796e-05,
"time": "2023-07-29T16:26:45.206Z",
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"pipeline": "MBTA",
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"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-07-29T16:32:01Z",
"superevent_id": "S230729ax",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T16:32:02.200500Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T16:32:02.200521Z",
"modified": "2023-07-29T16:32:02.205018Z",
"nonlocalizedevents": [],
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},
{
"id": 2508,
"topic": "igwn.gwalert",
"uuid": "19cea0f0-dc6e-4da8-8dca-8b0c2ed1b361",
"title": "S230827x - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"time": "2023-08-27T07:20:28.981Z",
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"time_created": "2023-08-27T07:35:29Z",
"superevent_id": "S230827x",
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},
"message_text": "",
"published": "2023-08-27T07:35:30.473655Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-27T07:35:30.473677Z",
"modified": "2023-08-27T07:35:30.477333Z",
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},
{
"id": 1790,
"topic": "hermes.message",
"uuid": "0736356b-859a-4557-a0b5-c2296bd5e275",
"title": "INTEGRAL follow-up of S230802aq",
"submitter": "Volodymyr Savchenko",
"authors": "",
"data": {},
"message_text": "INTEGRAL follow-up of S230802aq at 2023-08-02T11:33:59.000\n\n\nSPI-ACS excesses:\nat T0+13.88 FAP = 0.402\nat T0+92.78 FAP = 0.46\nat T0+-3.22 FAP = 0.516\nat T0+251.91 FAP = 0.695\nat T0+-14.04 FAP = 0.782\nat T0+73.73 FAP = 0.865\n\n\n\n\nnext break in data in 0.62 hr: 2023-08-02T12:11:10, for 9.2 hr",
"published": "2023-08-02T14:48:44.201217Z",
"message_parser": "Hermes Message Parser v2",
"retracted": false,
"created": "2023-08-02T14:48:44.201244Z",
"modified": "2023-08-02T14:48:44.207850Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1791,
"topic": "gcn.circular",
"uuid": "a402a5ab-45f4-4c86-8b4b-28d97cdb8b6b",
"title": "LIGO/Virgo S230802aq: No counterpart candidates in INTEGRAL SPI-ACS prompt observation",
"submitter": "Hop gcn.circular",
"authors": "Volodymyr Savchenko at ISDC, University of Geneva; LASTRO, EPFL <volodymyr.savchenko@unige.ch>",
"data": {
"date": "23/08/02 15:00:06 GMT",
"from": "Volodymyr Savchenko at ISDC, University of Geneva; LASTRO, EPFL <volodymyr.savchenko@unige.ch>",
"title": "GCN CIRCULAR",
"number": "34316",
"subject": "LIGO/Virgo S230802aq: No counterpart candidates in INTEGRAL SPI-ACS prompt observation"
},
"message_text": "V. Savchenko, C. Ferrigno (ISDC/UniGE, Switzerland)\nJ. Rodi (IAPS-Roma, Italy)\nA. Coleiro (APC, France)\nS. Mereghetti (INAF IASF-Milano, Italy)\n\non behalf of the INTEGRAL multi-messenger collaboration:\nhttps://www.astro.unige.ch/cdci/integral-multimessenger-collaboration\n\nUsing INTEGRAL/SPI-ACS realtime data (following [1]) we have performed\na search for a prompt gamma-ray counterpart of S230802aq (GCN 34314).\n\nAt the time of the event (2023-08-02 11:33:59 UTC, hereafter T0), INTEGRAL was operating in nominal mode. The peak of the event localization probability was at an angle of 75 deg with respect to the spacecraft pointing axis. This orientation implies strongly suppressed (21% of optimal) response of ISGRI, somewhat suppressed (44% of optimal) response of IBIS/Veto, and near-optimal (89% of optimal) response of SPI-ACS.\nWe note that due to large localization uncertainty, sensitivity is strongly dependent on the actual source location within the uncertainty.\n\nThe background within +/-300 seconds around the event was rather stable (excess variance 1.2).\n\nWe have performed a search for any impulsive events in INTEGRAL SPI-ACS (as described in [2]) data.\n\nWe do not detect any significant counterparts and estimate a 3-sigma upper limit on the 75-2000 keV fluence of 1.8e-07 erg/cm^2 (within the 50% probability containment region of the source localization) for a burst lasting less than 1 s with a characteristic short GRB spectrum (an exponentially cut off power law with alpha=-0.5 and Ep`0 keV) occurring at any time in the interval within 300 s around T0. For a typical long GRB spectrum (Band function with alpha=-1, beta=-2.5, and Ep00 keV), the derived peak flux upper limit is ~1.5e-07 (4.2e-08) erg/cm^2/s at 1 s (8 s) time scale in 75-2000 keV energy range.\n\nWe report for completeness and in order of FAP, all excesses identified in the search region. We find: 6 likely background\nexcesses:\n\nT-T0 | scale | S/N | flux ( x 1e-06 erg/cm2/s) | FAP\n13.9 | 0.05 | 4.2 | 1.77 +/- 0.528 +/- 1.39 | 0.402\n92.8 | 1.15 | 3.6 | 0.323 +/- 0.106 +/- 0.253 | 0.46\n-3.22 | 0.05 | 3.3 | 1.4 +/- 0.523 +/- 1.1 | 0.516\n252 | 2.5 | 3.5 | 2.14 +/- 0.72 +/- 1.68 | 0.695\n-14 | 0.1 | 3.6 | 1.08 +/- 0.367 +/- 0.843 | 0.782\n73.7 | 0.35 | 3.8 | 0.606 +/- 0.194 +/- 0.475 | 0.865\n\nNote that FAP estimates (especially at timescales above 2s) may be possibly further affected by enhanced non-stationary local background noise. This list excludes any excesses for which FAP is close to unity.\n\nWe note that no independent IBAS alerts happened in the viscinity.\n\n\nAll results quoted are preliminary.\n\nThis circular is an official product of the INTEGRAL Multi-Messenger team.\n\nNote that we send GCNs Circulars only when one of the following\nconditions is met: merger contains at least one neutron star, a\nsingificant counterpart is reported.\n\n[1] Savchenko et al. 2017, A&A 603, A46 [2] Savchenko et al. 2012, A&A\n541A, 122S\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkwOTg4NDEyLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.w-BCGdD9qFmICU4KuGW_ZnPZzDZYF5ehu2wnXimvYbU\n\n",
"published": "2023-08-02T15:00:22.797299Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-02T15:00:22.797316Z",
"modified": "2023-08-02T15:00:22.803973Z",
"nonlocalizedevents": [
{
"event_id": "S230802a"
}
],
"targets": []
},
{
"id": 4311,
"topic": "igwn.gwalert",
"uuid": "b8ef820a-8ab0-4ed5-bc14-e58f9a9e48a9",
"title": "S231102ac - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"far": 2.27937e-05,
"time": "2023-11-02T08:49:55.434Z",
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"duration": 0.005565,
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"published": "2023-11-02T08:56:18.359375Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-11-02T08:56:18.359401Z",
"modified": "2023-11-02T08:56:18.364692Z",
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{
"id": 1642,
"topic": "igwn.gwalert",
"uuid": "51529e1f-548c-4b8e-bee9-5bb8819e6a2e",
"title": "S230729bc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"event": {
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"time": "2023-07-29T17:11:55.722Z",
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"sequence_num": 1,
"time_created": "2023-07-29T17:12:24Z",
"superevent_id": "S230729bc",
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},
"message_text": "",
"published": "2023-07-29T17:12:25.951861Z",
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"retracted": false,
"created": "2023-07-29T17:12:25.951882Z",
"modified": "2023-07-29T17:12:25.955778Z",
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},
{
"id": 1643,
"topic": "igwn.gwalert",
"uuid": "10fe4ae1-14c7-4a0e-b308-f78bc6b5cd7e",
"title": "S230729bc - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"event": {
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"time": "2023-07-29T17:11:55.722Z",
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"sequence_num": 2,
"time_created": "2023-07-29T17:16:59Z",
"superevent_id": "S230729bc",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T17:17:00.685447Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T17:17:00.685466Z",
"modified": "2023-07-29T17:17:00.689081Z",
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"targets": []
},
{
"id": 1644,
"topic": "igwn.gwalert",
"uuid": "bc393514-7853-46f7-982b-afa19b51652a",
"title": "S230729be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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"event": {
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"time": "2023-07-29T17:13:36.291Z",
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"time_created": "2023-07-29T17:22:34Z",
"superevent_id": "S230729be",
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},
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"published": "2023-07-29T17:22:35.571939Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T17:22:35.571971Z",
"modified": "2023-07-29T17:22:35.576804Z",
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},
{
"id": 1645,
"topic": "igwn.gwalert",
"uuid": "c6f45b7f-97bf-4acb-87db-11928df7bd69",
"title": "S230729be - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
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},
"event": {
"far": 1.037057344551089e-06,
"time": "2023-07-29T17:13:36.291Z",
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"sequence_num": 2,
"time_created": "2023-07-29T17:27:08Z",
"superevent_id": "S230729be",
"external_coinc": null
},
"message_text": "",
"published": "2023-07-29T17:27:09.281265Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-07-29T17:27:09.281285Z",
"modified": "2023-07-29T17:27:09.284959Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1808,
"topic": "gcn.circular",
"uuid": "5c0f697f-fe5a-4f31-a406-6bf6609f3354",
"title": "Fermi trigger No 712798043: Global MASTER-Net observations report",
"submitter": "Hop gcn.circular",
"authors": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"data": {
"date": "23/08/04 00:31:18 GMT",
"from": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
"title": "GCN CIRCULAR",
"number": "34331",
"subject": "Fermi trigger No 712798043: Global MASTER-Net observations report"
},
"message_text": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,\nG.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile\n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra\n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley\n(South African Astronomical Observatory),\n\nO.A. Gres, N.M. Budnev\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez\n(INAOE, Guillermo Haro Astrophysics Observatory),\n\nA. Tlatov, D. Dormidontov\n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nA. Gabovich, V.Yurkov\n(Blagoveschensk Educational State University)\n\n\nMASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB230803.98 (trigger No 712798043,03h 14m 57.60s , -33d 52m 47.6s, R=4.4) errorbox 576 sec after notice time and 608 sec after trigger time at 2023-08-03 23:37:26 UT, with upper limit up to 15.6 mag. The observations began at zenith distance = 68 deg. The sun altitude is -71.2 deg.\n\nThe galactic latitude b = -58 deg., longitude l = 234 deg.\n\n\nReal time updated cover map and OT discovered available here:\nhttps://master.sai.msu.ru/site/master2/observ.php?id\"49535\n\nWe obtain a following upper limits.\n\nTmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n 638 | 2023-08-03 23:37:26 | MASTER-SAAO | (03h 22m 04.45s , -33d 44m 25.7s) | C | 60 | 15.6 |\n 638 | 2023-08-03 23:37:26 | MASTER-SAAO | (03h 21m 06.33s , -33d 43m 44.1s) | C | 60 | 15.2 |\n 718 | 2023-08-03 23:38:45 | MASTER-SAAO | (03h 21m 59.43s , -33d 45m 01.6s) | C | 60 | 14.0 |\n 718 | 2023-08-03 23:38:45 | MASTER-SAAO | (03h 21m 01.34s , -33d 44m 20.6s) | C | 60 | 13.3 |\n 1582 | 2023-08-03 23:53:10 | MASTER-SAAO | (03h 13m 52.24s , -34d 07m 25.5s) | C | 60 | 12.9 |\n 1582 | 2023-08-03 23:53:10 | MASTER-SAAO | (03h 12m 53.62s , -34d 06m 52.5s) | C | 60 | 12.1 |\n 1673 | 2023-08-03 23:54:41 | MASTER-SAAO | (03h 13m 58.82s , -34d 07m 23.1s) | C | 60 | 13.1 |\n 1843 | 2023-08-03 23:57:31 | MASTER-SAAO | (03h 13m 55.04s , -34d 07m 13.9s) | C | 60 | 14.1 |\n 1843 | 2023-08-03 23:57:31 | MASTER-SAAO | (03h 12m 56.59s , -34d 06m 43.3s) | C | 60 | 13.4 |\nFilter C is a clear (unfiltred) band.\n\n\nThe observation and reduction will continue.\nThe message may be cited.\n\n\n\n\n---\nTo unsubscribe, open this link in a web browser:\nhttps://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImdjbmNpcmN1bGFyQGRldi5ob3Auc2NpbW1hLm9yZyIsInRvcGljcyI6WyJjaXJjdWxhcnMiXSwiaWF0IjoxNjkxMTA5MDgzLCJpc3MiOiJodHRwczovL2djbi5uYXNhLmdvdiJ9.SE-avRlDTR8xuw6n7xgCKv4ozclFK6WMywaMljoR10Y\n\n",
"published": "2023-08-04T00:31:31.322537Z",
"message_parser": "GCN Circular Parser v1",
"retracted": false,
"created": "2023-08-04T00:31:31.322560Z",
"modified": "2023-08-04T00:31:31.328972Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1809,
"topic": "igwn.gwalert",
"uuid": "75471cd7-286d-4166-a974-17b9cc14d1d7",
"title": "S230804b - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230804b/files/bayestar.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230804b/view/"
},
"event": {
"far": 1.131470889959019e-05,
"time": "2023-08-04T02:58:20.542Z",
"group": "CBC",
"search": "AllSky",
"area_50": 890.700380980351,
"area_90": 3279.9595654852405,
"duration": null,
"pipeline": "spiir",
"properties": {
"HasNS": 0.01930226774880316,
"HasMassGap": 0.24615904688171514,
"HasRemnant": 0.0
},
"instruments": [
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"L1"
],
"significant": false,
"skymap_hash": "25bc300f13d415b2de45c2a1abbf0c6a",
"classification": {
"BBH": 0.0915168376182428,
"BNS": 0.0,
"NSBH": 0.014984220508529919,
"Terrestrial": 0.8934989418732273
},
"skymap_version": 0,
"central_frequency": null
},
"alert_type": "PRELIMINARY",
"sequence_num": 1,
"time_created": "2023-08-04T02:58:43Z",
"superevent_id": "S230804b",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-04T02:58:44.560905Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-04T02:58:44.560925Z",
"modified": "2023-08-04T02:58:44.566861Z",
"nonlocalizedevents": [],
"targets": []
},
{
"id": 1915,
"topic": "igwn.gwalert",
"uuid": "211eefea-b138-441c-be73-85affe3c7dc6",
"title": "S230808i - PRELIMINARY",
"submitter": "cody.messick-30d512c8",
"authors": "LVK",
"data": {
"urls": {
"skymap": "https://gracedb.ligo.org/api/superevents/S230808i/files/cwb.multiorder.fits,0",
"gracedb": "https://gracedb.ligo.org/superevents/S230808i/view/"
},
"event": {
"far": 6.85142e-11,
"time": "2023-08-08T04:03:46.430Z",
"group": "Burst",
"search": "BBH",
"area_50": 2257.6999056180393,
"area_90": 7195.264420395335,
"duration": 0.018072,
"pipeline": "CWB",
"properties": {},
"instruments": [
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"L1"
],
"significant": true,
"skymap_hash": "c614160e7268916b9215cadf880b6aa9",
"classification": {},
"skymap_version": 0,
"central_frequency": 53.462563
},
"alert_type": "PRELIMINARY",
"sequence_num": 2,
"time_created": "2023-08-08T04:11:12Z",
"superevent_id": "S230808i",
"external_coinc": null
},
"message_text": "",
"published": "2023-08-08T04:11:12.663484Z",
"message_parser": "IGWN Alert Avro Parser v1",
"retracted": false,
"created": "2023-08-08T04:11:12.663506Z",
"modified": "2023-08-08T04:11:12.669523Z",
"nonlocalizedevents": [],
"targets": []
}
]
}
