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

[vsnet-grb-info 36362] LIGO/Virgo S241127aj: GRANDMA/FRAM-CTA-N Observations
by GCN Circulars 28 Nov '24

28 Nov '24

TITLE: GCN CIRCULAR NUMBER: 38370 SUBJECT: LIGO/Virgo S241127aj: GRANDMA/FRAM-CTA-N Observations DATE: 24/11/28 19:18:52 GMT FROM: Thomas Hussenot-Desenonges at IJCLab <thomas.hussenot(a)ijclab.in2p3.fr> T. Hussenot-Desenonges (IJCLAB), D. Akl (AUS), M. Coughlin (UMN), M. Molham (NRIAG), S. Agayeva (Shamakhy Obs.), S. Antier (OCA), C. Andrade (UMN), S. Karpov (FZU), I. Tosta e Melo (UniCT-DFA), P. Hello (IJCLAB), P-A Duverne (APC), T. Pradier (Unistra/IPHC), N. Guessoum (AUS), … [View More]M. Masek (FZU), on behalf of the GRANDMA collaboration: We performed tiled observations of the LIGO/VIRGO event S241127aj (GCN 38336) with the 25 cm f/6.3 FRAM-CTA-N telescope located at Observatorio del Roque de los Muchachos, La Palma, Spain. Observations were conducted from 2024-11-28T06:05:22 to 2024-11-28T08:21:54, 1.0 day after the GW trigger time. We obtained a total of 23 images in the Johnson R band, acquiring 2 consecutive 2-minute long exposures at the individual pointings in the table below, for a total of 2760 seconds. The observation plan was constructed to cover 11.8 degrees of the bayestar.multiorder.fits,1 localization, corresponding to ~3.1% of the enclosed probability. The regions of highest localization probability were unfortunately unobservable because of constraints of proximity to the Sun. Our low latency analysis (Karpov et al. 2021) did not reveal any significant candidate down to the limits listed in the table below (5 sigma, Vega system): | Start time (UTC) | RA | DEC | Lim.Mag. | Exposure (seconds) | 2024-11-28T06:05:22.573 | 189.11392 | -31.62162 | 17.04 | 120 | 2024-11-28T06:07:34.140 | 189.11392 | -31.62162 | 17.03 | 120 | 2024-11-28T06:09:56.133 | 188.46395 | -30.64865 | 16.96 | 120 | 2024-11-28T06:12:07.703 | 188.46395 | -30.64865 | 17.02 | 120 | 2024-11-28T06:14:26.822 | 187.97468 | -31.62162 | 17.19 | 120 | 2024-11-28T06:16:38.420 | 187.97468 | -31.62162 | 17.13 | 120 | 2024-11-28T06:19:00.368 | 189.66443 | -36.48649 | 17.45 | 120 | 2024-11-28T06:21:11.958 | 189.66443 | -36.48649 | 17.46 | 120 | 2024-11-28T06:23:43.572 | 195.42857 | -73.45946 | 17.74 | 120 | 2024-11-28T06:25:55.193 | 195.42857 | -73.45946 | 17.76 | 120 | 2024-11-28T06:28:16.041 | 198.85714 | -73.45946 | 17.73 | 120 | 2024-11-28T06:30:27.649 | 198.85714 | -73.45946 | 17.73 | 120 | 2024-11-28T06:32:48.431 | 192 | -73.45946 | 17.76 | 120 | 2024-11-28T07:11:24.897 | 188.9441 | -29.67568 | 17.72 | 120 | 2024-11-28T07:13:36.499 | 188.9441 | -29.67568 | 17.65 | 120 | 2024-11-28T07:15:56.104 | 189.59248 | -30.64865 | 17.67 | 120 | 2024-11-28T07:18:07.696 | 189.59248 | -30.64865 | 17.53 | 120 | 2024-11-28T07:20:31.567 | 190.25316 | -31.62162 | 17.57 | 120 | 2024-11-28T07:22:43.183 | 190.25316 | -31.62162 | 17.53 | 120 | 2024-11-28T07:25:14.770 | 192 | -73.45946 | 17.64 | 120 | 2024-11-28T07:27:26.342 | 192 | -73.45946 | 17.65 | 120 | 2024-11-28T08:17:43.339 | 188.45638 | -36.48649 | 16.07 | 120 | 2024-11-28T08:19:54.951 | 188.45638 | -36.48649 | 15.87 | 120 All the data have been reduced by a single data processing pipeline, STDPipe (Karpov et al., 2022), and calibrated using the Gaia DR3 SynPhot catalogue. The data are not corrected from Galaxy extinction. We use the SkyPortal application (skyportal.io) to monitor our observational campaign (Coughlin et al. 2023) GRANDMA is a worldwide telescope network (grandma.ijclab.in2p3.fr) devoted to the observation of transients in the context of multi-messenger astrophysics (Antier et al. 2020 MNRAS 497, 5518). View this GCN Circular online at https://gcn.nasa.gov/circulars/38370. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L… [View Less]

1 0

[vsnet-grb-info 36361] Fermi trigger No 754492985: Global MASTER-Net observations report
by GCN Circulars 28 Nov '24

28 Nov '24

TITLE: GCN CIRCULAR NUMBER: 38369 SUBJECT: Fermi trigger No 754492985: Global MASTER-Net observations report DATE: 24/11/28 19:01:02 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, … [View More]F. Podesta, 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-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 GRB241128.56 (trigger No 754492985,20h 05m 12.00s , -50d 37m 01.2s, R=32.43) errorbox 18760 sec after notice time and 18796 sec after trigger time at 2024-11-28 18:36:17 UT, with upper limit up to 19.6 mag. Observations started at twilight. The observations began at zenith distance = 37 deg. The sun altitude is -13.3 deg. The galactic latitude b = -33 deg., longitude l = 348 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2687320 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 18886 | 2024-11-28 18:36:17 | MASTER-SAAO | (21h 51m 11.04s , -56d 55m 07.0s) | C | 180 | 19.3 | 19086 | 2024-11-28 18:39:36 | MASTER-SAAO | (21h 51m 14.31s , -56d 55m 53.2s) | C | 180 | 19.6 | 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/38369. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L… [View Less]

1 0

[vsnet-grb-info 36360] GRB 241128A: Swift-XRT afterglow detection
by GCN Circulars 28 Nov '24

28 Nov '24

TITLE: GCN CIRCULAR NUMBER: 38368 SUBJECT: GRB 241128A: Swift-XRT afterglow detection DATE: 24/11/28 18:34:25 GMT FROM: K.L. Page at U Leicester <klp5(a)leicester.ac.uk> K.L. Page (U. Leicester) reports on behalf of the Swift-XRT team: Immediately following the BAT trigger on GRB 241128A, Swift entered the South Atlantic Anomaly, during which time no XRT data were taken. The field of the GRB became visible to the XRT at 17:16 UT, 3.9 ks after the trigger, at which point the XRT … [View More]

1 0

[vsnet-grb-info 36359] GRB 241128A: Swift detection of a burst
by GCN Circulars 28 Nov '24

28 Nov '24

TITLE: GCN CIRCULAR NUMBER: 38367 SUBJECT: GRB 241128A: Swift detection of a burst DATE: 24/11/28 16:37:44 GMT FROM: K.L. Page at U Leicester <klp5(a)leicester.ac.uk> R. Brivio (INAF-OAB), M. Ferro (INAF-OAB), C. Gronwall (PSU), R. Gupta (NASA GSFC), A. Y. Lien (U Tampa), K. L. Page (U Leicester), D. M. Palmer (LANL), C. Salvaggio (INAF-OAB) and T. Sbarrato (INAF-OAB) report on behalf of the Neil Gehrels Swift Observatory Team: At 16:14:34 UT, the Swift Burst Alert Telescope (… [View More]

1 0

[vsnet-grb-info 36358] GRB 241127A: GRANDMA and Kilonova-Catcher optical afterglow detections
by GCN Circulars 28 Nov '24

28 Nov '24

TITLE: GCN CIRCULAR NUMBER: 38366 SUBJECT: GRB 241127A: GRANDMA and Kilonova-Catcher optical afterglow detections DATE: 24/11/28 16:24:29 GMT FROM: Thomas Hussenot-Desenonges at IJCLab <thomas.hussenot(a)ijclab.in2p3.fr> T. Hussenot-Desenonges (IJCLAB), D. Akl (AUS), M. Coughlin (UMN), M. Molham (NRIAG), S. Agayeva (Shamakhy Obs.), S. Antier (OCA), C. Andrade (UMN), S. Karpov (FZU), I. Tosta e Melo (UniCT-DFA), P. Hello (IJCLAB), P-A Duverne (APC), T. Pradier (Unistra/IPHC), N. … [View More]Guessoum (AUS), M. Masek (FZU), A. Klotz (IRAP), D. Turpin (CEA-Saclay/Irfu), M. Freeberg (KNC), on behalf of the GRANDMA and Kilonova-Catcher collaborations: We observed the field of GRB 241127A, detected by SWIFT (GCN 38354) and SVOM (GCN 38363) with the GRANDMA network and its citizen science project Kilonova-catcher (KNC). Our observations were performed with the TAROT-TCH, FRAM-Auger and the KNC-CHI-1, 60cm telescopes. We detect the afterglow already observed by Swift/XRT and UVOT (GCN 38354, 38362, 38364, 38365), MASTER (GCN 38353, 38358) and LCOGT (GCN 38359) and obtain the following magnitudes: | Tstart (UTC) | Telescope | Exposure | Filter | Magnitude | | 2024-11-28T00:33:05 | FRAM-Auger | 20x120s | R | 18.78 +- 0.20 (Vega)| | 2024-11-28T00:50:45 | TAROT-TCH | 4x180s | R | 19.14 +- 0.17 (Vega)| | 2024-11-28T01:16:26 | KNC-CHI-1 | 2x120s | r' | 19.4 +- 0.1 (AB) | | 2024-11-28T01:20:52 | KNC-CHI-1 | 2x120s | g' | 19.74 +- 0.09 (AB) | All the data have been reduced by a single data processing pipeline, STDPipe (Karpov et al., 2022). TCH and KNC images were calibrated using the SkyMapper DR4 catalogue, the FRAM-Auger image used Gaia DR3 Synphot. The data are not corrected from Galaxy extinction. Our magnitudes are consistent with those reported by LCOGT in GCN 38359. We use the SkyPortal application (skyportal.io) to monitor our observational campaign (Coughlin et al. 2023) A report of the observations of GRANDMA for this source can be seen at: https://skyportal-icare.ijclab.in2p3.fr/public/sources/GRB241127 GRANDMA is a worldwide telescope network (grandma.ijclab.in2p3.fr) devoted to the observation of transients in the context of multi-messenger astrophysics (Antier et al. 2020 MNRAS 497, 5518). Kilonova-Catcher (KNC) is the citizen science program of GRANDMA (http://kilonovacatcher.in2p3.fr/). View this GCN Circular online at https://gcn.nasa.gov/circulars/38366. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L… [View Less]

1 0

[vsnet-grb-info 36357] GRB 241127A: Swift/UVOT Detection
by GCN Circulars 28 Nov '24

28 Nov '24

TITLE: GCN CIRCULAR NUMBER: 38365 SUBJECT: GRB 241127A: Swift/UVOT Detection DATE: 24/11/28 13:21:45 GMT FROM: Alice Breeveld at MSSL-UCL <a.breeveld(a)ucl.ac.uk> A. A. Breeveld (UCL-MSSL) and C. Salvaggio (INAF-OAB) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 241127A 484 s after the BAT trigger (Salvaggio et al., GCN Circ. 38354). The optical counterpart seen in the UVOT at the position given in that circular, and also … [View More]

1 0

[vsnet-grb-info 36356] GRB 241127A: Swift-XRT refined Analysis
by GCN Circulars 28 Nov '24

28 Nov '24

TITLE: GCN CIRCULAR NUMBER: 38364 SUBJECT: GRB 241127A: Swift-XRT refined Analysis DATE: 24/11/28 11:07:18 GMT FROM: Phil Evans at U of Leicester <pae9(a)star.le.ac.uk> A. Melandri (INAF-OAR), S. Dichiara (PSU), J.A. Kennea (PSU), D.N. Burrows (PSU), K.L. Page (U. Leicester), A.P. Beardmore (U. Leicester), T. Sbarrato (INAF-OAB), P. D'Avanzo (INAF-OAB) and P.A. Evans report on behalf of the Swift-XRT team: We have analysed 5.0 ks of XRT data for GRB 241127A, from 443 s to 27.9 … [View More]

1 0

[vsnet-grb-info 36355] GRB 241127A: SVOM/GRM observation
by GCN Circulars 28 Nov '24

28 Nov '24

TITLE: GCN CIRCULAR NUMBER: 38363 SUBJECT: GRB 241127A: SVOM/GRM observation DATE: 24/11/28 09:08:34 GMT FROM: zhengchao_astro(a)foxmail.com SVOM/GRM team: Chao Zheng, Chen-Wei Wang, Shi-Jie Zheng, Yong-Wei Dong, Jiang-Tao Liu, Jian-Chao Sun, Yue Huang, Jiang He, Min Gao, Hao-Xuan Guo, Lu Li, Yong-Ye Li, Hong-Wei Liu, Xin Liu, Hao-Li Shi, Li-Ming Song, You-Li Tuo, Wen-Long Zhang, Wen-Jun Tan, Hao-Xi Wang, Jin Wang, Jin-Zhou Wang, Ping Wang, Rui-Jie Wang, Yu-Xi Wang, Bo-Bing Wu, Shao-… [View More]Lin Xiong, Jian-Ying Ye, Yi-Tao Yin, Wen-Hui Yu, Fan Zhang, Li Zhang, Peng Zhang, Shuang-Nan Zhang, Yan-Qiu Zhang, Yan-Ting Zhang, Shu-Min Zhao, Xiao-Yun Zhao (IHEP), Maria-Grazia Bernardini (LUPM/INAF-OAB), Laurent Bouchet (IRAP), David Corre (CEA), Tais Maiolino (LUPM), Frédéric Piron (LUPM), Stéphane Schanne (CEA), Jingwei Wang (IAP), JeanLuc Attéia (IRAP) SVOM JSWG: Jian-Yan Wei (NAOC), Bertrand Cordier (CEA), Shuang-Nan Zhang (IHEP), Stéphane Basa (LAM), Arnaud Claret (CEA), Zi-Gao Dai (USTC), Frédéric Daigne (IAP), Jin-Song Deng (NAOC), Olivier Godet (IRAP), Andrea Goldwurm (APC), Diego Götz (CEA), Xu-Hui Han (NAOC), Cyril Lachaud (APC), En-Wei Liang (GXU), Yu-Lei Qiu (NAOC), Susanna Vergani (Obs.Paris), Jing Wang (NAOC), Chao Wu (NAOC), Li-Ping Xin (NAOC), Shao-Lin Xiong (IHEP), Bing Zhang (UNLV) report on behalf of the SVOM team: During the commissioning phase, SVOM/GRM detected GRB 241127A at 2024-11-27T21:43:16.230 UT (T0), which was also observed by Swift/BAT (C. Salvaggio, et al., GCN 38354). With the event-by-event data downloaded through the X-band ground station, the GRM light curve shows that this burst consists of a single pulse with a duration of about 3 s. The SVOM/GRM light curve can be found here: https://www.bursthub.cn//admin/static/svgrb241127A.png This burst is located at about 75.6 degrees from the SVOM optical axis. The Space Variable Objects Monitor (SVOM) is a China-France joint mission led by the Chinese National Space Administration (CNSA, China), the National Center for Space Studies (CNES, France) and the Chinese Academy of Sciences (CAS, China), which is dedicated to observing gamma-ray bursts and other transient phenomena in the energetic universe. GRM is developed by the Institute of High Energy Physics (IHEP) of CAS. The SVOM/GRM point of contact for this burst is: Chao Zheng (IHEP)(zhengchao97(a)ihep.ac.cn) View this GCN Circular online at https://gcn.nasa.gov/circulars/38363. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0L… [View Less]

1 0

[vsnet-grb-info 36354] GRB 241127A: Enhanced Swift-XRT position
by GCN Circulars 28 Nov '24

28 Nov '24

TITLE: GCN CIRCULAR NUMBER: 38362 SUBJECT: GRB 241127A: Enhanced Swift-XRT position DATE: 24/11/28 07:55:25 GMT FROM: Phil Evans at U of Leicester <pae9(a)star.le.ac.uk> J.P. Osborne, A.P. Beardmore, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team. Using 2379 s of XRT Photon Counting mode data and 9 UVOT images for GRB 241127A, we find an astrometrically corrected X-ray position (using the XRT-UVOT alignment and matching UVOT field sources to the … [View More]

1 0

[vsnet-grb-info 36353] LIGO/Virgo/KAGRA S241127aj: Updated Sky localization
by GCN Circulars 28 Nov '24

28 Nov '24

TITLE: GCN CIRCULAR NUMBER: 38361 SUBJECT: LIGO/Virgo/KAGRA S241127aj: Updated Sky localization DATE: 24/11/28 05:18:19 GMT FROM: ethan.payne(a)ligo.org The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration report: We have conducted further offline analysis of the LIGO Hanford Observatory (H1), LIGO Livingston Observatory (L1), and Virgo Observatory (V1) data around the time of the compact binary merger (CBC) candidate S241127aj (GCN Circular 38336). … [View More]

1 0

2025

2024

2023

2022

2021

vsnet-grb-info November 2024