December 2024 - vsnet-grb-info - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-grb-info 36508] GRB 241209A: BOOTES-7 and 2.2m CAHA early optical upper limits
by GCN Circulars 10 Dec '24

10 Dec '24

TITLE: GCN CIRCULAR NUMBER: 38509 SUBJECT: GRB 241209A: BOOTES-7 and 2.2m CAHA early optical upper limits DATE: 24/12/10 00:49:36 GMT FROM: Youdong HU at INAF-OAB <huyoudong072(a)hotmail.com> Y.-D. Hu (INAF-OAB), I. Perez-Garcia, A. J. Castro-Tirado, E. Fernandez-Garcia, S.-Y. Wu, M.D. Caballero-Garcia, R. Sanchez-Ramirez, S. Guziy, G. Garcia-Segura, I. Olivares, A. Sota (IAA-CSIC), C. Perez del Pulgar, A. Castellon, S. Castillo (Univ. de Malaga), L. Hernandez-Garcia (Univ. de … [View More]

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[vsnet-grb-info 36507] GRB 241209D: Swift-XRT refined Analysis
by GCN Circulars 10 Dec '24

10 Dec '24

TITLE: GCN CIRCULAR NUMBER: 38508 SUBJECT: GRB 241209D: Swift-XRT refined Analysis DATE: 24/12/10 00:31:53 GMT FROM: Phil Evans at U of Leicester <pae9(a)star.le.ac.uk> K.L. Page (U. Leicester), A.P. Beardmore (U. Leicester), E. Ambrosi (INAF-IASFPA) , M. Capalbi (INAF-IASFPA), M. Perri (SSDC & INAF-OAR), S. Dichiara (PSU), J.A. Kennea (PSU), D.N. Burrows (PSU) and P.A. Evans report on behalf of the Swift-XRT team: We have analysed 6.4 ks of XRT data for GRB 241209D, from … [View More]

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[vsnet-grb-info 36506] GRB 241209D: Fermi GBM Observation
by GCN Circulars 09 Dec '24

09 Dec '24

TITLE: GCN CIRCULAR NUMBER: 38507 SUBJECT: GRB 241209D: Fermi GBM Observation DATE: 24/12/09 22:50:55 GMT FROM: Christian Malacaria at INAF-OAR <cmalacaria.astro(a)gmail.com> C. Malacaria (INAF-OAR) and C. Meegan (UAH) report on behalf of the Fermi Gamma-ray Burst Monitor Team: "At 10:59:44.09 UT on 09 December 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 241209D (trigger 755434789/241209458). which was also detected by Swift BAT (T. M. Parsotan et al.… [View More]

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[vsnet-grb-info 36505] GRB 241209A: VLT/HAWK-I near-IR counterpart candidate
by GCN Circulars 09 Dec '24

09 Dec '24

TITLE: GCN CIRCULAR NUMBER: 38506 SUBJECT: GRB 241209A: VLT/HAWK-I near-IR counterpart candidate DATE: 24/12/09 22:50:27 GMT FROM: Benjamin Schneider at MIT <bschn(a)mit.edu> B. Schneider (LAM), N. Habeeb (U. Leicester), D. B. Malesani (DAWN/NBI and Radboud Univ.), A. Martin-Carrillo (UCD), A. de Ugarte Postigo (OCA and LAM) and N. R. Tanvir (U. Leicester) report on behalf of the Stargate collaboration: We observed the field of the short GRB 241209A (Parsotan et al., GCN 38476; … [View More]

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[vsnet-grb-info 36504] GRB 241209A: COLIBRÍ detection of the afterglow
by GCN Circulars 09 Dec '24

09 Dec '24

TITLE: GCN CIRCULAR NUMBER: 38505 SUBJECT: GRB 241209A: COLIBRÍ detection of the afterglow DATE: 24/12/09 22:12:33 GMT FROM: Damien Dornic <ddornic(a)km3net.de> J.-G. Ducoin (CPPM), Francesco Magnani (CPPM), Damien Dornic (CPPM), Alan M. Watson (UNAM), Margarita Pereyra (UNAM), Stéphane Basa (UAR Pytheas), William H. Lee (UNAM), S. Antier (OCA), Jean-Luc Atteia (IRAP), Nathaniel R. Butler (ASU), Francis Fortin (IRAP) and Simona Lombardo (LAM), report: We imaged the field of GRB … [View More]

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[vsnet-grb-info 36503] GRB 241209A: COLIBRÍ Optical Upper Limit
by GCN Circulars 09 Dec '24

09 Dec '24

TITLE: GCN CIRCULAR NUMBER: 38504 SUBJECT: GRB 241209A: COLIBRÍ Optical Upper Limit DATE: 24/12/09 21:59:11 GMT FROM: Damien Dornic <ddornic(a)km3net.de> J.-G. Ducoin (CPPM), Francesco Magnani (CPPM), Damien Dornic (CPPM), Alan M. Watson (UNAM), Margarita Pereyra (UNAM), Stéphane Basa (UAR Pytheas), William H. Lee (UNAM), S. Antier (OCA), Jean-Luc Atteia (IRAP), Nathaniel R. Butler (ASU), Francis Fortin (IRAP) and Simona Lombardo (LAM), report: We imaged the field of GRB … [View More]

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[vsnet-grb-info 36502] Fermi GRB 241209D: Global MASTER-Net observations report
by GCN Circulars 09 Dec '24

09 Dec '24

TITLE: GCN CIRCULAR NUMBER: 38503 SUBJECT: Fermi GRB 241209D: Global MASTER-Net observations report DATE: 24/12/09 21:46:04 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov(a)xray.sai.msu.ru> V.Lipunov, E.Gorbovskoy, N.Tiurina, P.Balanutsa, , D.Vlasenko, I.Panchenko, A.Kuznetsov, G.Antipov, A.Sankovich, A.Sosnovskij, Yu.Tselik, M.Gulyaev, Ya.Kechin, V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU), O.Gress, N.Budnev (ISU), C.Francile, F. Podesta,… [View More] R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity) D.Buckley (SAAO), R.Rebolo (The Instituto de Astrofisica de Canarias), L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory) MASTER-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB 241209D ( Fermi GBM team, GCN 38488) errorbox 33914 sec after notice time and 33953 sec after trigger time at 2024-12-09 20:25:37 UT, with upper limit up to 19.2 mag. The observations began at zenith distance = 75 deg. The sun altitude is -41.5 deg. The galactic latitude b = 60 deg., longitude l = 302 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2701308 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 34044 | 2024-12-09 20:25:37 | MASTER-Tunka | (12h 40m 42.72s , -02d 49m 30.7s) | C | 180 | 15.0 | 34224 | 2024-12-09 20:25:37 | MASTER-Tunka | (12h 40m 42.76s , -02d 49m 32.4s) | C | 540 | 19.2 | Coadd 35267 | 2024-12-09 20:46:01 | MASTER-Tunka | (12h 40m 48.04s , -02d 50m 25.9s) | C | 180 | 18.8 | 36758 | 2024-12-09 21:10:52 | MASTER-Tunka | (12h 40m 47.42s , -02d 47m 55.6s) | C | 180 | 19.0 | 37967 | 2024-12-09 21:31:01 | MASTER-Tunka | (12h 40m 42.47s , -02d 48m 50.9s) | C | 180 | 19.3 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited. View this GCN Circular online at https://gcn.nasa.gov/circulars/38503. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L… [View Less]

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[vsnet-grb-info 36501] GRB 241209A: Fermi GBM Observation
by GCN Circulars 09 Dec '24

09 Dec '24

TITLE: GCN CIRCULAR NUMBER: 38502 SUBJECT: GRB 241209A: Fermi GBM Observation DATE: 24/12/09 21:39:39 GMT FROM: rhamburg(a)usra.edu R. Hamburg (USRA) and C. Meegan (UAH) report on behalf of the Fermi Gamma-ray Burst Monitor Team: "At 05:35:44.16 UT on 09 December 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 241209A (trigger 755415349/241209233), which was also detected by Swift BAT (Parsotan et al. 2024, GCN 38476) and Swift XRT (Evans et al. 2024, GCN … [View More]

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[vsnet-grb-info 36500] GRB 241209C: Swift/BAT-GUANO localization skymap of a burst
by GCN Circulars 09 Dec '24

09 Dec '24

TITLE: GCN CIRCULAR NUMBER: 38501 SUBJECT: GRB 241209C: Swift/BAT-GUANO localization skymap of a burst DATE: 24/12/09 21:29:41 GMT FROM: Jimmy DeLaunay at Penn State <delauj2(a)gmail.com> James DeLaunay (PSU), Samuele Ronchini (PSU), Aaron Tohuvavohu (Caltech), Gayathri Raman (PSU), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report: Swift/BAT did not localize GRB 241209C onboard (T0: 2024-12-09T07:22:54.60 UTC, Fermi trig 755421779) The Fermi notice, distributed in … [View More]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). Upon 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. The BAT likelihood search, NITRATES (DeLaunay + Tohuvavohu 2022, ApJ, 941, 169), performed on the temporal window [T0-20 s, T0+20 s], detects the burst with a sqrt(TS) of 24.5 in a 8.192 s analysis time bin, starting at T0 - 0.0 s. Using the NITRATES analysis, parameter estimation was performed to obtain the localization of this burst in the form of a HEALPIX Multi-Order Coverage (MOC) skymap. This localization accounts for both statistical and systematic errors. More details in the creation and calibration of these maps will soon be published (DeLaunay et al. 2024. in prep) The 90% credible area is 920 deg2 and the 50% credible area is 298 deg2. The integrated probability inside the coded field of view is <1%. The NITRATES skymap is consistent with the Fermi localization reported in the final position notice (GCN 38482). The combined Fermi/GBM+NITRATES 90% credible area is 162 deg2 and the 50% credible area is 46 deg2. A plot of the probability skymap can be viewed here: [skymap_plot](https://guano.swift.psu.edu/trigger_report?id=755421809/#:~:te… The probability skymap file can be downloaded from the link here [skymap_fits_file](https://guano.swift.psu.edu/files/755421809/0_n_PROBMAP) Instructions on how to read and manipulate this map can be found here: https://guano.swift.psu.edu/documentation More details about this burst can be found on the trigger report page here: https://guano.swift.psu.edu/trigger_report?id=755421809 GUANO is a fully autonomous, extremely low latency, spacecraft commanding pipeline designed for targeted recovery of BAT event mode data around the times of compelling astrophysical events to enable more sensitive GRB searches. A live reporting of Swift/BAT event data recovered by GUANO can be found at: https://www.swift.psu.edu/guano/ View this GCN Circular online at https://gcn.nasa.gov/circulars/38501. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L… [View Less]

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[vsnet-grb-info 36499] GRB 241209A: GRANDMA/TAROT upper limit
by GCN Circulars 09 Dec '24

09 Dec '24

TITLE: GCN CIRCULAR NUMBER: 38500 SUBJECT: GRB 241209A: GRANDMA/TAROT upper limit DATE: 24/12/09 21:20:40 GMT FROM: marion.pillas(a)ligo.org M. Pillas (ULiege), S. Antier (OCA), O. Pyshna (Caltech), N. Guessoum (AUS), A. Klotz (IRAP), C. Andrade (UMN), M. Boer, C. Limonta (OCA), S. Karpov (FZU), M. Coughlin (UMN), , P. Hello (IJCLAB), P-A Duverne (APC), T. Pradier (Unistra/IPHC), D.Turpin (CEA-Saclay/Irfu), on behalf of the GRANDMA collaboration: We observed the field of GRB 241209A,… [View More]

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