GRB240513A

This page lists all entries on GRB240513A in GRBweb

Summary Fermi GBM IPN GCN 36455 GCN 36462 GCN 36464 GCN 36478 GCN 36479 GCN 36504 GCN 36506 GCN 36533

Summary table
Variable Value Source
GRB_name_Fermi GRB240513307
T0 7:22:02 UTC GCN_circulars,Fermi GBM Det
ra 163.4000° IPN
decl -27.5000° IPN
pos_error 4.00e-01° IPN
T90 6.941 s Fermi_GBM
T90_error 1.063 s Fermi_GBM
T90_start 7:22:02.554 UTC Fermi_GBM
fluence 8.48e-07 erg/cm² Fermi_GBM
fluence_error 3.16e-08 erg/cm² Fermi_GBM
T100 7.495 s
GBM_located False
mjd 60443.306967592594 GCN_circulars,Fermi GBM Det
Fermi GBM table
GRB_name_Fermi GRB240513307
trigger_name bn240513307
ra 144.7500°
decl -26.1700°
pos_error 5.09e+00°
datum 2024-05-13
t_trigger 7:22:02.551 UTC
T90 6.941 s
T90_error 1.063 s
T90_start 7:22:02.554 UTC
fluence 8.48e-07 erg/cm²
fluence_error 3.16e-08 erg/cm²
flux_1024 4.11e+00 erg/cm²/s
flux_1024_error 2.14e-01 erg/cm²/s
flux_1024_time 3.81e+00 erg/cm²/s
flux_64 1.03e+01 erg/cm²/s
flux_64_error 1.13e+00 erg/cm²/s
IPN table
GRB_name GRB240513A
ra 163.4000°
decl -27.5000°
pos_error 4.00e-01°
GCN 36455 table
GRB_name GRB240513A
GCN_number 36455
Detection_method AstroSat CZTI
Circular_text TITLE: GCN CIRCULAR NUMBER: 36455 SUBJECT: GRB 240513A: AstroSat CZTI detection DATE: 24/05/13 15:48:20 GMT FROM: Gaurav Waratkar at IIT Bombay J. Joshi (IUCAA), G. Waratkar (IITB), A. Vibhute (IUCAA), V. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA), A. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration: Analysis of AstroSat CZTI data with the CIFT framework (Sharma et al., 2021, JApA, 42, 73) showed the detection of a long-duration GRB 240513A which was also detected by Fermi (Trigger Num. 737277727). The source was clearly detected in the CZT detectors in the 20-200 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2024-05-13 07:22:02.65 UTC. The measured peak count rate associated with the burst is 648 (+161, -104) counts/s above the background in the combined data of three quadrants (out of four), with a total of 623 (+121, -101) counts. The local mean background count rate was 238 (+4, -7) counts/s. Using cumulative rates, we measure a T90 of 6.4 (+0.1, -0.4) s. The source was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2024-05-13 07:22:05.69 UTC. The measured peak count rate associated with the burst is 505 (+68, -73) counts/s above the background in the combined data of all quadrants, with a total of 1322 (+297, -319) counts. The local mean background count rate was 1255 (+6, -5) counts/s. We measure a T90 of 6.6 (+3.4, -3.4) s from the cumulative Veto light curve. CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, URSC, IUCAA, SAC, and PRL. The Indian Space Research Organisation funded, managed, and facilitated the project. CZTI GRB detections are reported regularly on the payload site at: http://astrosat.iucaa.in/czti/?q=grb
GCN 36462 table
GRB_name GRB240513A
GCN_number 36462
Detection_method Fermi LAT Det
t_trigger 7:22:02.550 UTC
ra 163.4000°
decl -27.5000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 36462 SUBJECT: GRB 240513A: Fermi-LAT detection DATE: 24/05/13 19:14:36 GMT FROM: N. Di Lalla at Stanford University S. Cutini (INFN Perugia), E. Bissaldi (Politecnico and INFN Bari), R. Gupta (NASA/GSFC) and N. Di Lalla (Stanford University) report on behalf of the Fermi-LAT Collaboration: On May 13, 2024 Fermi-LAT detected high-energy emission from GRB 240513A, which was also detected by Fermi-GBM (trigger 737277727 / 240513307) and AstroSat CZTI (GCN #36455). The best LAT on-ground location is found to be RA, Dec = 163.4, -27.5 (J2000) with an error radius of 0.4 deg (90 % containment, statistical error only). This was 34 deg from the LAT boresight at the time of the GBM trigger: T0 = 07:22:02.55 UT. The data from the Fermi-LAT show a significant increase in the event rate that is spatially and temporally correlated with the GBM emission with high significance. The photon flux above 100 MeV in the time interval 0-100 s after the GBM trigger is (1.7 +/- 0.6) E-5 ph/cm2/s. The estimated photon index above 100 MeV is -2.3 +/- 0.4. The highest-energy photon is a 0.8 GeV event which is observed about 5 seconds after the GBM trigger. A Swift ToO has been requested for this burst. The Fermi-LAT point of contact for this burst is Sara Cutini (sara.cutini@pg.infn.it). The Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.
GCN 36464 table
GRB_name GRB240513A
GCN_number 36464
Detection_method Swift Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 36464 SUBJECT: GRB 240513A: Tiled Swift observations DATE: 24/05/13 20:12:39 GMT FROM: Phil Evans at U of Leicester P. A. Evans (U. Leicester) reports on behalf of the Swift team: Swift has initiated a series of observations, tiled on the sky, of the Fermi/LAT GRB 240513A. Automated analysis of the XRT data will be presented online at http://www.swift.ac.uk/xrt_products/TILED_GRB00125 Any uncatalogued X-ray sources detected in this analysis will be reported on this website and via GCN COUNTERPART notices. The probability of finding serendipitous sources, unrelated to the Fermi/LAT event is high: any X-ray source considered to be a probable afterglow candidate will be reported via a GCN Circular after manual consideration. Details of the XRT automated analysis methods are detailed in Evans et al. (2007, A&A, 469, 379; 2009, MNRAS, 397, 1177 and 2014, ApJS, 210, 8). This circular is an official product of the Swift-XRT team.
GCN 36478 table
GRB_name GRB240513A
GCN_number 36478
Detection_method Swift-XRT Other
ra 163.8237°
decl -27.6225°
Circular_text TITLE: GCN CIRCULAR NUMBER: 36478 SUBJECT: GRB 240513A: Swift-XRT observations DATE: 24/05/14 14:35:11 GMT FROM: Phil Evans at U of Leicester M. Ferro (INAF-OAB), R. Brivio (INAF-OAB), A. Tohuvavohu (U. Toronto), D.N. Burrows (PSU), J. D. Gropp (PSU), A.P. Beardmore (U. Leicester), J.P. Osborne (U. Leicester), A. D'Ai (INAF-IASFPA) and P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team: Swift-XRT has performed follow-up observations of the Fermi/LAT-detected burst GRB 240513A in a series of observations tiled on the sky. The total exposure time is 5.1 ks, distributed over 7 tiles; the maximum exposure at a single sky location was 1.6 ks. The data were collected between T0+46.1 ks and T0+80.7 ks, and are entirely in Photon Counting (PC) mode. Three uncatalogued X-ray sources have been detected, however none of them is above the RASS limit or shows definitive signs of fading. Therefore, at the present time we cannot identify which, if any, is the afterglow. Details of these sources are given below: Source 2: RA (J2000): 163.8237 = 10:55:17.69 Dec (J2000): -27.6225 = -27:37:20.9 Error: 9.7 arcsec (radius, 90% conf.) Count-rate: (8.6 [+4.8, -3.5])e-3 ct s^-1 Distance: 1422 arcsec from Fermi/LAT position. Source 4: RA (J2000): 163.9338 = 10:55:44.10 Dec (J2000): -27.5934 = -27:35:36.2 Error: 7.6 arcsec (radius, 90% conf.) Count-rate: (7.4 [+4.8, -3.4])e-3 ct s^-1 Distance: 1736 arcsec from Fermi/LAT position. Source 6: RA (J2000): 163.4544 = 10:53:49.05 Dec (J2000): -27.4116 = -27:24:41.7 Error: 5.1 arcsec (radius, 90% conf.) Count-rate: 0.0224 [+0.0072, -0.0060] ct s^-1 Distance: 362 arcsec from Fermi/LAT position. Flux: (1.64 [+0.53, -0.44])e-12 erg cm^-2 s^-1 (observed, 0.3-10 keV) Two catalogued sources were also detected. The results of the XRT-team automatic analysis of the tiled XRT observations, including a position-specific upper limit calculator, are available at https://www.swift.ac.uk/xrt_products/TILED_GRB00125. This circular is an official product of the Swift-XRT team.
GCN 36479 table
GRB_name GRB240513A
GCN_number 36479
Detection_method Fermi GBM Det
t_trigger 7:22:02 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 36479 SUBJECT: GRB 240513A: Fermi GBM observation DATE: 24/05/14 15:49:19 GMT FROM: Elisabetta Bissaldi at Politecnico and INFN Bari E. Bissaldi (Politecnico and INFN Bari) and C. Meegan (UAH) report on behalf of the Fermi GBM Team: "At 07:22:02 UT on 13 May 2024, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB 240513A (trigger 737277727 / 240513307), which was also detected by the Fermi/LAT (Cutini et al. 2024, GCN 36462) and AstroSat CZTI (Joshi et al. 2024, GCN 36455). The GBM on-ground location is consistent with the LAT position. The angle from the Fermi LAT boresight at the GBM trigger time is 34 degrees. The GBM light curve consists of two emission episodes with a duration (T90) of about 7 s (50-300 keV). The time-averaged spectrum from T0-0.3 s to T0+6.5 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -0.87 +/- 0.06 and the cutoff energy, parameterized as Epeak, is 1700 +/- 400 keV. The event fluence (10-1000 keV) in this time interval is (3.93 +/- 0.17)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+3.8 s in the 10-1000 keV band is 4.1 +/- 0.2 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog: https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html For Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/"
GCN 36504 table
GRB_name GRB240513A
GCN_number 36504
Detection_method Konus-Wind Det
t_trigger 7:22:07.128 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 36504 SUBJECT: Konus-Wind detection of GRB 240513A DATE: 24/05/17 13:04:50 GMT FROM: Anna Ridnaia at Ioffe Institute A. Ridnaia, D. Frederiks, A. Lysenko, D. Svinkin, A. Tsvetkova, M. Ulanov, and T. Cline, on behalf of the Konus-Wind team, report: The long-duration GRB 240513A (AstroSat CZTI detection: Joshi et al., GCN 36455; Fermi-LAT detection: Cutini et al., GCN 36462; Fermi-GBM observation: Bissaldi & Meegan, GCN 36479) triggered Konus-Wind at T0=26527.128 s UT (07:22:07.128). The burst light curve shows a multipeaked structure which started at ~T0-5.3 s and had a total duration of ~7.8 s. KW triggered on the second of two emission episodes reported in GCN 36479, this episode had a total duration of ~2.6 s. The emission is seen up to ~6 MeV. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB240513_T26527/ As observed by Konus-Wind, the burst had a fluence of 3.42(-0.39,+2.50)x10^-6 erg/cm2, and a 64-ms peak flux, measured from T0-0.066 s, of 5.12(-0.78,+2.09)x10^-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range). Since the brightest part of the burst emission was detected before the trigger, the spectral analysis was performed using the KW 3-channel light curve data. Modelling the KW 3-channel time-integrated spectrum (measured from T0-5.339 s to T0+2.512 s) by a power law with exponential cutoff (CPL) model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep), yields alpha = -1.00(-0.22,+0.26) and Ep = 732(-249,+745) keV. All the quoted errors are at the 68% confidence level. All the quoted values are preliminary.
GCN 36506 table
GRB_name GRB240513A
GCN_number 36506
Detection_method Swift Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 36506 SUBJECT: GRB 240513A: Swift ToO observations DATE: 24/05/17 15:10:24 GMT FROM: Phil Evans at U of Leicester P. A. Evans (U. Leicester) reports on behalf of the Swift team: Swift has initiated a ToO observation of the Fermi/LAT GRB 240513A. Automated analysis of the XRT data will be presented online at https://www.swift.ac.uk/ToO_GRBs/00021692 Any uncatalogued X-ray sources detected in this analysis will be reported on this website and via GCN COUNTERPART notices. These are not necessarily related to the Fermi/LAT event. Any X-ray source considered to be a probable afterglow candidate will be reported via a GCN Circular after manual consideration. Details of the XRT automated analysis methods are detailed in Evans et al. (2007, A&A, 469, 379; 2009, MNRAS, 397, 1177 and 2014, ApJS, 210, 8). This circular is an official product of the Swift-XRT team.
GCN 36533 table
GRB_name GRB240513A
GCN_number 36533
Detection_method Swift-XRT Other
ra 163.4548°
decl -27.4114°
Circular_text TITLE: GCN CIRCULAR NUMBER: 36533 SUBJECT: GRB 240513A: Swift-XRT afterglow detection DATE: 24/05/22 21:23:31 GMT FROM: Andrea Melandri at INAF-OAR A. Melandri (INAF-OAR) reports on behalf of the Swift-XRT team: Swift-XRT has performed follow-up observations of the Fermi/LAT-detected burst GRB 240513A in a series of observations tiled on the sky. Three uncatalogued X-ray sources were reported in GCN 36478, of which one ("Source #6”) is fading with 2.7-sigma significance, and is therefore likely the GRB afterglow. The position of this source is RA, Dec=163.4548, -27.4114 which is equivalent to: RA (J2000): 10:53:49.16 Dec(J2000): -27:24:41.3 with an uncertainty of 5.1 arcsec (radius, 90% confidence). The results of the XRT-team automatic analysis are available at https://www.swift.ac.uk/xrt_curves/00021687/ This circular is an official product of the Swift-XRT team.