GRB 210514A: Swift-BAT refined analysis
Abstract
Using the data set from T-240 to T+962 sec from the recent telemetry downlink, we report further analysis of BAT GRB 210514A (trigger #1048372) (Lien, et al., GCN Circ. 30009). The BAT ground-calculated position is RA, Dec = 2.947, -21.898 deg which is RA(J2000) = 00h 11m 47.2s Dec(J2000) = -21d 53' 54.0" with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 79%. The mask-weighted light curve showed a complex structure of five main peaks with sub-peaks. Emission started around T-1 sec and continued to T+75 sec. T90 (15-350 keV) is 70.21 +- 0.74 sec (estimated error including systematics). The time-averaged spectrum from T-1.08 to T+75.13 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.65 +- 0.04. The fluence in the 15-150 keV band is 7.4 +- 0.2 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T-0.52 sec in the 15-150 keV band is 8.7 +- 0.4 ph/cm2/sec. All the quoted errors are at the 90% confidence level. The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/1048372/BA/
- Publication:
-
GRB Coordinates Network
- Pub Date:
- May 2021
- Bibcode:
- 2021GCN.30018....1M