GCN Circular 16404
Subject
GRB 140614B: Swift-BAT refined analysis
Date
2014-06-14T21:16:24Z (10 years ago)
From
Scott Barthelmy at NASA/GSFC <scott@lheamail.gsfc.nasa.gov>
S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC),
N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/UMBC),
C. B. Markwardt (GSFC), D. M. Palmer (LANL), K. L. Page (U Leicester),
T. Sakamoto (AGU), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU)
(i.e. the Swift-BAT team):
Using the data set from T-240 to T+962 sec from recent telemetry downlinks,
we report further analysis of BAT GRB 140614B (trigger #601662)
(Page, et al., GCN Circ. 16394). The BAT ground-calculated position is
RA, Dec = 322.636, 14.895 deg, which is
RA(J2000) = 21h 30m 32.6s
Dec(J2000) = +14d 53' 41.5"
with an uncertainty of 2.1 arcmin, (radius, sys+stat, 90% containment).
The partial coding was 71%.
The mask-weighted light curve shows a FRED pulse starting at ~T0,
peaking at ~T+5 sec, and ending at ~T+75 sec. T90 (15-350 keV) is
49.8 +- 7.9 sec (estimated error including systematics).
The time-averaged spectrum from T-3.28 to T+55.59 sec is best fit by a simple
power-law model. The power law index of the time-averaged spectrum is
2.04 +- 0.26. The fluence in the 15-150 keV band is 5.5 +- 1.0 x 10^-7 erg/cm2.
The 1-sec peak photon flux measured from T+6.93 sec in the 15-150 keV band
is 0.5 +- 0.2 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/601662/BA/