GCN Circular 13472
Subject
GRB 120714A: Swift-BAT refined analysis
Date
2012-07-14T21:56:19Z (12 years ago)
From
Scott Barthelmy at NASA/GSFC <scott@lheamail.gsfc.nasa.gov>
W. H. Baumgartner (GSFC/UMBC), S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC),
E. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),
C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC),
G. Sato (ISAS), C. J. Saxton (UCL-MSSL), M. Stamatikos (OSU),
J. Tueller (GSFC), T. N. Ukwatta (MSU)
(i.e. the Swift-BAT team):
Using the data set from T-60 to T+243 sec from recent telemetry downlinks,
we report further analysis of BAT GRB 120714A (trigger #526593)
(Saxton, et al., GCN Circ. 13464). The BAT ground-calculated position is
RA, Dec = 167.975, -30.625 deg, which is
RA(J2000) = 11h 11m 54.1s
Dec(J2000) = -30d 37' 29.8"
with an uncertainty of 1.6 arcmin, (radius, sys+stat, 90% containment).
The partial coding was 40%.
The mask-weighted light curve shows a single FRED-like pulse starting at
~T-1 sec, peaking at ~T+4 sec, and ending at ~T90 sec.
T90 (15-350 keV) is 16.2 +- 4.0 sec (estimated error including systematics).
The time-averaged spectrum from T-0.74 to T+17.78 sec is best fit by a simple
power-law model. The power law index of the time-averaged spectrum is
1.62 +- 0.16. The fluence in the 15-150 keV band is 8.2 +- 0.9 x 10^-7 erg/cm2.
The 1-sec peak photon flux measured from T+3.58 sec in the 15-150 keV band
is 1.5 +- 0.3 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/526593/BA/