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GCN Circular 5334

Subject
GRB 060714: Refined analysis of the Swift-BAT burst
Date
2006-07-17T20:35:56Z (18 years ago)
From
Scott Barthelmy at NASA/GSFC <scott@lheamail.gsfc.nasa.gov>
H. Krimm (GSFC/USRA), L. Barbier (GSFC), S. D. Barthelmy (GSFC),
J. Cummings (GSFC/ORAU), E. Fenimore (LANL), N. Gehrels (GSFC),
D. Hullinger (BYU-Idaho), M. Koss (GSFC/UMD), C. Markwardt (GSFC/UMD), 
D. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU),
G. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC)
on behalf of the Swift-BAT team:

Using the data set from T-240 to T+962 sec from the telemetry downlinks,
we report further analysis of BAT GRB 060714 (trigger #219101)
(Krimm, et al., GCN Circ. 5311).  The BAT ground-calculated position is RA,Dec
= 227.854, -6.545 deg {15h 11m 24.9s, -6d 32' 42.3"} (J2000) +- 1.5 arcmin,
(radius, sys+stat, 90% containment).  The partial coding was 27%.
 
The mask-weighted lightcurves show an initial triangular-shapped peak
starting at T-15 sec, peaking at T_zero, and ending at T+55.  Then come
two peaks, each about 20 sec FWHM, peaking at T+76 and T+90 sec; the last peak
ending at T+120 sec.  We note that the XRT follow-up observation does not start
until the trailing edge of the second peak.  T90 (15-350 keV) is 115 +- 5 sec
(estimated error including systematics).
 
The time-averaged spectrum from T-13.3 to T+120.6 is best fit by a simple
power-law model.  The power law index of the time-averaged spectrum is
1.99 +- 0.10.  The fluence in the 15-150 keV band is 3.0 +- 0.2 x 10^-6 erg/cm2.
The 1-sec peak photon flux measured from T+75.42 sec in the 15-150 keV band
is 1.4 +- 0.1 ph/cm2/sec.  All the quoted errors are at the 90% confidence level.

We apologize for the long delay in issuing this standard BAT Second Circular.
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