GRB240929A

This page lists all entries on GRB240929A in GRBweb

Summary Fermi GBM IPN GCN 37627 GCN 37628 GCN 37629 GCN 37630 GCN 37642 GCN 37650 GCN 37657

Summary table
Variable Value Source
GRB_name_Fermi GRB240929826
T0 19:50:02 UTC GCN_circulars,INTEGRAL
ra 2.4250° IPN
decl 74.8333° IPN
pos_error 3.33e-02° IPN
T90 13.312 s Fermi_GBM
T90_error 0.923 s Fermi_GBM
T90_start 19:50:04.350 UTC Fermi_GBM
fluence 9.34e-06 erg/cm² Fermi_GBM
fluence_error 3.18e-08 erg/cm² Fermi_GBM
T100 15.662 s
GBM_located False
mjd 60582.82641203704 GCN_circulars,INTEGRAL
Fermi GBM table
GRB_name_Fermi GRB240929826
trigger_name bn240929826
ra 356.1500°
decl 75.0100°
pos_error 2.81e+00°
datum 2024-09-29
t_trigger 19:50:04.094 UTC
T90 13.312 s
T90_error 0.923 s
T90_start 19:50:04.350 UTC
fluence 9.34e-06 erg/cm²
fluence_error 3.18e-08 erg/cm²
flux_1024 1.23e+01 erg/cm²/s
flux_1024_error 3.89e-01 erg/cm²/s
flux_1024_time 4.29e+00 erg/cm²/s
flux_64 1.81e+01 erg/cm²/s
flux_64_error 1.71e+00 erg/cm²/s
IPN table
GRB_name GRB240929A
ra 2.4250°
decl 74.8333°
pos_error 3.33e-02°
GCN 37627 table
GRB_name GRB240929A
GCN_number 37627
Detection_method Fermi GBM final loc
t_trigger 19:50:04 UTC
ra 356.1000°
decl 75.0000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 37627 SUBJECT: GRB 240929A: Fermi GBM Final Real-time Localization DATE: 24/09/29 20:00:32 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 19:50:04 UT on 29 Sep 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240929A (trigger 749332209.094252 / 240929826). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 356.1, Dec = 75.0 (J2000 degrees, equivalent to J2000 23h 44m, 75d 00'), with a statistical uncertainty of 1.4 degrees. The angle from the Fermi LAT boresight is 108.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240929826/quicklook/glg_skymap_all_bn240929826.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240929826/quicklook/glg_healpix_all_bn240929826.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240929826/quicklook/glg_lc_medres34_bn240929826.gif
GCN 37628 table
GRB_name GRB240929A
GCN_number 37628
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 37628 SUBJECT: Fermi GRB 240929A: Global MASTER-Net observations report DATE: 24/09/29 20:30:35 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko, G.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gress, N.M. Budnev, O.Ershova (Irkutsk State University, API), L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich (Blagoveschensk Educational State University) MASTER-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 240929A ( Fermi GBM team, GCN 37627) errorbox 21 sec after notice time and 55 sec after trigger time at 2024-09-29 19:50:59 UT, with upper limit up to 17.9 mag. The observations began at zenith distance = 32 deg. The sun altitude is -43.0 deg. The galactic latitude b = 13 deg., longitude l = 119 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2619216 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 60 | 2024-09-29 19:50:59 | MASTER-Tavrida | (00h 07m 38.65s , +74d 41m 45.4s) | P/ | 10 | 15.9 | 378 | 2024-09-29 19:55:47 | MASTER-Tavrida | (00h 07m 39.07s , +74d 41m 46.6s) | P/ | 70 | 17.1 | 520 | 2024-09-29 19:57:59 | MASTER-Tavrida | (00h 07m 38.99s , +74d 41m 46.3s) | P/ | 90 | 17.3 | 692 | 2024-09-29 20:00:30 | MASTER-Tavrida | (00h 07m 38.85s , +74d 41m 45.2s) | P/ | 130 | 17.7 | 898 | 2024-09-29 20:03:42 | MASTER-Tavrida | (00h 07m 38.77s , +74d 41m 43.8s) | P/ | 160 | 17.6 | 1130 | 2024-09-29 20:07:24 | MASTER-Tavrida | (00h 07m 38.90s , +74d 41m 43.2s) | P/ | 180 | 17.6 | 1373 | 2024-09-29 20:11:27 | MASTER-Tavrida | (00h 07m 39.18s , +74d 41m 43.7s) | P/ | 180 | 17.8 | 1616 | 2024-09-29 20:15:29 | MASTER-Tavrida | (00h 07m 39.36s , +74d 41m 45.4s) | P/ | 180 | 17.7 | 1859 | 2024-09-29 20:19:33 | MASTER-Tavrida | (00h 07m 39.49s , +74d 41m 48.9s) | P/ | 180 | 17.9 | The observation and reduction will continue. The message may be cited.
GCN 37629 table
GRB_name GRB240929A
GCN_number 37629
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 37629 SUBJECT: GRB 240929A: BALROG localization (Fermi Trigger 749332209 / GRB 240929826) DATE: 24/09/29 20:37:46 GMT FROM: Jochen Greiner at MPE T. Preis, B. Biltzinger, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 749332209 at 19:50:04 on 29 Sept. 2024 were automatically fitted for spectrum and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427; Berlato et al. 2019, ApJ 873, 60). The best-fit position is: RA(2000.0) = 359.0 deg Decl.(2000.0) = 75.4 deg The 1 sigma statistical error radius is 2.5 deg. We estimate an additional systematic error of 1 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB240929826/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB240929826/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB240929826/json
GCN 37630 table
GRB_name GRB240929A
GCN_number 37630
Detection_method INTEGRAL
t_trigger 19:50:02 UTC
ra 2.4233°
decl 74.8275°
Circular_text TITLE: GCN CIRCULAR NUMBER: 37630 SUBJECT: GRB 240929A long GRB detected by INTEGRAL DATE: 24/09/29 21:00:52 GMT FROM: Sandro Mereghetti at IASF-Milano/INAF S.Mereghetti (INAF, IASF-Milano), D.Gotz (CEA, Saclay), C.Ferrigno, E.Bozzo, V.Savchenko (ISDC, Versoix), L.Ducci (IAAT, Germany and ISDC, Versoix) and J.Borkowski (CAMK, Torun) report: a gamma ray burst lasting about 20 s has been detected by IBAS in the IBIS/ISGRI data at 19:50:02 UT of 2024 September 29. The refined coordinates (J2000) are: R.A.= 2.4233 deg DEC.= 74.8275 deg with an uncertainty of 2 arcmin (90% c.l.). A preliminary analysis gives a peak flux of about 5 ph/cm2/s (20-200 keV, 1-s integration time) and a fluence in the same energy range of about 3e-6 erg/cmq. Due to telemetry saturation, these values should be considered as lower limits. This burst has also been detected by Fermi/GBM (GCN 37627). A plot of the light curve will be posted at http://ibas.iasf-milano.inaf.it/IBAS_Results.html
GCN 37642 table
GRB_name GRB240929A
GCN_number 37642
Detection_method Optical
ra 2.4250°
Circular_text TITLE: GCN CIRCULAR NUMBER: 37642 SUBJECT: GRB 240929A : Leavitt Observatory optical upper limit DATE: 24/09/30 19:52:37 GMT FROM: leavittob@gmail.com L. Moretti and E. Pavoni (Leavitt Observatory, Italy), Members of: GRB/UAI - Gamma ray Burst section of Unione Astrofili Italiani. ATA - Associazione Tuscolana di Astronomia. In a large collaboration with: M.G. Dainotti (National Astronomical Observatory of Japan), Y. Niino (Tokyo University, Institute of Astronomy), K. Kalinowski (Aarhus University, Department of Physics and Astronomy), B. De Simone (Universita' degli Studi Di Salerno) report: We imaged the field of GRB 240929A detected by INTEGRAL (Fermi GBM Team, GCN 37627; Lipunov et al., GCN 37628; Preis et al., GCN 37629; Mereghetti et al., GCN 37630), with the RC telescope (D=250 mm, F/D=8) of Leavitt Observatory, Italy. The observations started at 20:17:40 UT on 2024-09-29, i.e. about 27 min. after the INTEGRAL trigger, at the following position: RA(J2000) = 00h 09m 42s Dec(J2000) = 74° 49' 39" Weather conditions were good. We co-added 27 exposures of 120 sec each (total 54 min). We did not found any optical counterpart in the error box (2 arcmin) of INTEGRAL, with the following upper limit: Start End Limit 2024-09-29T20:17:40 2024-09-29T21:10:53 > 20.9 Magnitudes were estimated with the BP-band of Gaia DR3 catalogue (*) and are not corrected for galactic dust extinction. Reference: https://leavittobservatory.altervista.org The message may be cited. (*) https://gea.esac.esa.int/archive/documentation/GEDR3/Data_processing/chap_cu5pho/cu5pho_sec_photSystem/cu5pho_ssec_photRelations.html
GCN 37650 table
GRB_name GRB240929A
GCN_number 37650
Detection_method IBAS
Circular_text TITLE: GCN CIRCULAR NUMBER: 37650 SUBJECT: GRB 240929A: SVOM/GRM observation DATE: 24/10/01 07:17:44 GMT FROM: zhengchao_astro@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-Jun Tan, Wen-Long Zhang, Hao-Xi Wang, Jin Wang, Jin-Zhou Wang, Ping Wang, Rui-Jie Wang, Yu-Xi Wang, Bo-Bing Wu, Shao-Lin Xiong, Jian-Ying Ye, Yi-Tao Yin, Wen-Hui Yu, Fan Zhang, Li Zhang, Peng Zhang, Shuang-Nan Zhang, Yan-Ting Zhang, Yan-Qiu 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) SVOM JSWG: Jian-Yan Wei (NAOC), Bertrand Cordier (CEA), Shuang-Nan Zhang (IHEP), Stéphane Basa (LAM), Shao-Lin Xiong (IHEP), Jean-Luc Attéia (IRAP), Arnaud Claret (CEA), Zi-Gao Dai (USTC), Frédéric Daigne (IAP), Jin-Song Deng (NAOC), 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), Bing Zhang (UNLV) report on behalf of the SVOM team: During the commissioning phase, the SVOM/GRM was triggered in-flight by a long GRB 240929A (SVOM trigger reference: sb 24092904) at 2024-09-29T19:50:08.000 UT (T0), which also triggered Fermi/GBM (Fermi GBM team, GCN 37627) and INTEGRAL IBAS (S.Mereghetti et al., GCN 37630). With the event-by-event data downloaded through the X-band ground station, the GRM light curve shows that this burst consists of multiple pulses with a duration of about 17 s. The GRM light curve can be found here: https://www.bursthub.cn//admin/static/svgrb240929A.png ECLAIRs was not collecting data at the time of the burst. The Space Variable Objects Monitor (SVOM) is a China-France joint mission led by the Chinese National Space Administration (CNSA, China), 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 point of contact for this burst is: Chao Zheng (IHEP)(zhengchao97@ihep.ac.cn)
GCN 37657 table
GRB_name GRB240929A
GCN_number 37657
Detection_method Fermi GBM Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 37657 SUBJECT: GRB 240929A: GRBAlpha detection DATE: 24/10/01 18:54:34 GMT FROM: Marianna Dafčíková at Masaryk University <500025@mail.muni.cz> M. Dafcikova, J. Ripa, M. Kolar (Masaryk U.), A. Pal (Konkoly Observatory), N. Werner (Masaryk U.), M. Ohno, H. Takahashi (Hiroshima U.), L. Meszaros, B. Csak (Konkoly Observatory), N. Husarikova, F. Munz , M. Topinka, M. Duriskova, L. Szakszonova, J.-P. Breuer, F. Hroch (Masaryk U.), T. Urbanec, M. Kasal, A. Povalac (Brno U. of Technology), J. Hudec, J. Kapus, M. Frajt (Spacemanic s.r.o), R. Laszlo, M. Koleda (Needronix s.r.o), M. Smelko, P. Hanak, P. Lipovsky (Technical U. of Kosice), G. Galgoczi (Wigner Research Center/Eotvos U.), Y. Uchida, H. Poon, H. Matake (Hiroshima U.), N. Uchida (ISAS/JAXA), T. Bozoki (Eotvos U.), G. Dalya (Eotvos U.), T. Enoto (Kyoto U.), Zs. Frei (Eotvos U.), G. Friss (Eotvos U.), Y. Fukazawa, K. Hirose (Hiroshima U.), S. Hisadomi (Nagoya U.), Y. Ichinohe (Rikkyo U.), K. Kapas (Eotvos U.), L. L. Kiss (Konkoly Observatory), T. Mizuno (Hiroshima U.), K. Nakazawa (Nagoya U.), H. Odaka (Univ of Tokyo), J. Takatsy (Eotvos U.), K. Torigoe (Hiroshima U.), N. Kogiso, M. Yoneyama (Osaka Metropolitan U.), M. Moritaki (U. Tokyo), T. Kano (U. Michigan) -- the GRBAlpha collaboration. The long-duration GRB 240929A (Fermi/GBM detection: GCN 37627; INTEGRAL/IBAS detection: GCN 37630; SVOM/GRM detection: GCN 37650; INTEGRAL/SPI-ACS peak detection at 2024-09-29 ~19:50:05 UTC) was observed by the GRBAlpha 1U CubeSat (Pal et al. 2023, A&A, 677, 40; https://ui.adsabs.harvard.edu/abs/2023A%26A...677A..40P/abstract). The detection was confirmed at the peak time 2024-09-29 19:50:08.6 UTC. The T90 duration measured by GRBAlpha is 12.5 s and the overall significance during T90 reaches 22 sigma. The light curve obtained by GRBAlpha is available here: https://grbalpha.konkoly.hu/static/share/GRB240929A_GCN.pdf All GRBAlpha detections are listed at: https://monoceros.physics.muni.cz/hea/GRBAlpha/ GRBAlpha, launched on 2021 March 22, is a demonstration mission for a future CubeSat constellation (Werner et al. Proc. SPIE 2018). The detector of GRBAlpha consists of a 75 x 75 x 5 mm3 CsI scintillator read out by a SiPM array, covering the energy range from ~50 keV to ~1000 keV. To increase the duty cycle and the downlink rate, the upgrade of the on-board data acquisition software stack is in progress. The ground segment is also supported by the radio amateur community and it takes advantage of the SatNOGS network for increased data downlink volume.