GRB190515A

This page lists all entries on GRB190515A in GRBweb

Summary Fermi GBM IPN GCN 24550 GCN 24560 GCN 24562 GCN 24563 GCN 24575

Summary table
Variable Value Source
GRB_name_Fermi GRB190515190
T0 4:33:03 UTC GCN_circulars,Fermi GBM final loc
ra 137.6875° IPN
decl 29.2833° IPN
pos_error 9.00e-01° IPN
T90 1.264 s Fermi_GBM
T90_error 0.471 s Fermi_GBM
T90_start 4:33:03.023 UTC Fermi_GBM
fluence 1.54e-07 erg/cm² Fermi_GBM
fluence_error 1.18e-08 erg/cm² Fermi_GBM
T100 1.287 s
GBM_located False
mjd 58618.189618055556 GCN_circulars,Fermi GBM final loc
Fermi GBM table
GRB_name_Fermi GRB190515190
trigger_name bn190515190
ra 137.6871°
decl 29.2761°
pos_error 4.75e+00°
datum 2019-05-15
t_trigger 4:33:03.135 UTC
T90 1.264 s
T90_error 0.471 s
T90_start 4:33:03.023 UTC
fluence 1.54e-07 erg/cm²
fluence_error 1.18e-08 erg/cm²
flux_1024 2.88e+00 erg/cm²/s
flux_1024_error 1.77e-01 erg/cm²/s
flux_1024_time -2.56e-01 erg/cm²/s
flux_64 8.17e+00 erg/cm²/s
flux_64_error 8.86e-01 erg/cm²/s
IPN table
GRB_name GRB190515A
ra 137.6875°
decl 29.2833°
pos_error 9.00e-01°
GCN 24550 table
GRB_name GRB190515A
GCN_number 24550
Detection_method Fermi GBM final loc
t_trigger 4:33:03 UTC
ra 137.2000°
decl 39.3000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 24550 SUBJECT: GRB 190515A: Fermi GBM Final Real-time Localization DATE: 19/05/15 04:44:50 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely SHORT GRB At 04:33:03 UT on 15 May 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190515A (trigger 579587588.135176 / 190515190). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 137.2, Dec = 39.3 (J2000 degrees, equivalent to J2000 09h 08m, 39d 17'), with a statistical uncertainty of 5.0 degrees. The angle from the Fermi LAT boresight is 35.0 degrees. The skymap can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190515190/quicklook/glg_skymap_all_bn190515190.png The HEALPix FITS file, including the estimated localization systematic, can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190515190/quicklook/glg_healpix_all_bn190515190.fit The GBM light curve can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190515190/quicklook/glg_lc_medres34_bn190515190.gif
GCN 24560 table
GRB_name GRB190515A
GCN_number 24560
Detection_method Fermi LAT Det
t_trigger 4:33:03 UTC
ra 137.6870°
decl 29.2760°
Circular_text TITLE: GCN CIRCULAR NUMBER: 24560 SUBJECT: GRB 190515A: Fermi-LAT detection DATE: 19/05/16 02:05:30 GMT FROM: Daniel Kocevski at GSFC D. Kocevski (NASA/MSFC), M. Axelsson (KTH and Stockholm Univ.), L. Scotton (INFN Torino), E. Burns (NASA/GSFC), and M. Arimoto (Kanazawa Univ.) report on behalf of the Fermi-LAT team: At 04:33:03 on 2019-05-15, Fermi-LAT triggered on high-energy emission from short GRB 190515A, which was also detected by Fermi-GBM (trigger 579587588/190515190). The best LAT on-ground location is found to be RA, Dec = 137.687 , 29.276 (J2000) with an error radius of 0.907 deg (90% containment, statistical error only). This was 44 deg from the LAT boresight at the time of the trigger and 10 deg from the center of the GBM localization (GCN 24550). The data from the Fermi-LAT show a significant increase in the event rate that is temporally correlated with the GBM emission with high significance. The highest-energy photon is a 874 MeV event which is observed 3 seconds after the GBM trigger. The photon flux above 100 MeV in the time interval 0-300s after the GBM trigger is 6.5e-06 ph/cm2/s +/- 2.4e-06. The estimated photon index above 100 MeV is -2.6 +/- 0.5. The Fermi-LAT point of contact for this burst is Magnus Axelsson (magnusa@fysik.su.se). 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 24562 table
GRB_name GRB190515A
GCN_number 24562
Detection_method Fermi GBM Det
t_trigger 4:33:03.140 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 24562 SUBJECT: GRB 190515A: Fermi GBM detection DATE: 19/05/16 04:36:25 GMT FROM: Suraj Poolakkil at UAH O.J. Roberts (USRA/NASA-MSFC) reports on behalf of the Fermi GBM Team: "At 04:33:03.14 UT on the 15th May 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190515A (trigger 579587588 / 190515190), which was also detected by the LAT (Kocevski et al. 2019, GCN 24560) The GBM on-ground location is consistent with the LAT position. The angle from the Fermi LAT boresight is 44 degrees. The GBM light curve shows a bright short spike with a duration (T90) of about 0.5 s (10-1000 keV). The time-averaged spectrum from T0-0.26 s to T0+0.38 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -0.4 +/- 0.2 and the cutoff energy, parameterized as Epeak, is 960 +/- 251 keV. The event fluence (10-1000 keV) in this time interval is (1.233 +/- 0.070)E-06 erg/cm^2. The 64-msec peak photon flux measured starting from T0+0.2 s in the 10-1000 keV band is 8.2 +/- 0.9 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 24563 table
GRB_name GRB190515A
GCN_number 24563
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 24563 SUBJECT: GRB 190515A: Insight-HXMT/HE detection DATE: 19/05/16 07:52:53 GMT FROM: Shuo Xiao at IHEP S. Xiao, C. Cai, Q. Luo, Q. B. Yi, C. K. Li, X. B. Li, G. Li, J. Y. Liao, S. L. Xiong, C. Z. Liu, X. F. Li, Z. W. Li, Z. Chang, X. F. Lu, A. M. Zhang, Y. F. Zhang, C. L. Zou (IHEP), Y. J. Jin, Z. Zhang (THU), T. P. Li (IHEP/THU), F. J. Lu, L. M. Song, M. Wu, Y. P. Xu, S. N. Zhang (IHEP), report on behalf of the Insight-HXMT team: At 2019-05-15T04:33:03.000 (T0), Insight-HXMT/HE detected GRB 190515A(trigger ID: HEB190515189) in a routine search of the data, which was also triggered by Fermi/GBM (GCN#24550), Fermi/LAT (D. Kocevski et al., GCN#24560) and Swift/XRT (M. J. Moss et al., GCN#24553). The Insight-HXMT/HE light curve mainly consists of single pulse with a duration (T90) of 0.44 s measured from T0+0.02 s. The 1-ms peak rate, measured from T0+0.20 s, is 5641 cnts/sec. The total counts from this burst is 1906 counts. URL_LC: http://www.hxmt.org/images/GRB/HEB190515189_lc.jpg All measurements above are made with the CsI detectors operating in the regular mode with the energy range of about 80-800 keV (deposited energy). Only gamma-rays with energy greater than about 200 keV can penetrate the spacecraft and leave signals in the CsI detectors installed inside of the telescope. Insight-HXMT is the first Chinese space X-ray telescope, which was funded jointly by the China National Space Administration (CNSA) and the Chinese Academy of Sciences (CAS). More information about it could be found at: http://www.hxmt.org.
GCN 24575 table
GRB_name GRB190515A
GCN_number 24575
Detection_method CALET
Circular_text TITLE: GCN CIRCULAR NUMBER: 24575 SUBJECT: GRB 190515A: CALET Gamma-Ray Burst Monitor detection DATE: 19/05/17 10:26:34 GMT FROM: Valentin Pal'shin at AGU S. Sugita, A. Yoshida, T. Sakamoto, V. Pal'shin(AGU), Y. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN), Y. Asaoka, S. Ozawa, S. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC), M. L. Cherry (LSU), S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena), and the CALET collaboration: The short hard GRB 190515A (Fermi-LAT detection: Kocevski et al., GCN Circ. 24560; Fermi GBM detection: Roberts, GCN Circ. 24562) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 04:33:03.330 UTC on 15 May 2019. The burst signal was seen by all CGBM detectors. The burst light curve shows a single pulse which starts at T+0 sec, peaks at T+0.19 sec and ends at T+0.45 sec. The T90 and T50 durations measured by the SGM data are 0.38 +- 0.14 sec and 0.19 +- 0.06 sec (40-1000 keV), respectively. The ground processed light curve is available at http://cgbm.calet.jp/cgbm_trigger/ground/1241929925/ The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at the Waseda University.