SGR 1900+14: Swift-BAT detection of renewed activity of a Soft Gamma Repeater
ATel #774; D. M. Palmer (LANL), C. B. Markwardt (GSFC/UMD), and S. D. Barthelmy (GSFC)
on 25 Mar 2006; 21:14 UT
Distributed as an Instant Email Notice Gamma-Ray Bursts
Credential Certification: David M. Palmer (palmer@lanl.gov)
Subjects: Gamma Ray, Soft Gamma-ray Repeater
As reported in GCN #4922 (Vetere et al.):
At 20:16:40 on 25 Mar 2006 UT, the Swift Burst Alert Telescope (BAT)
triggered and located a burst from SGR 1900+14 (trigger=202746).
The BAT on-board calculated location is RA,Dec 286.828, +9.270
{19h 07m 19s, +09d 16' 11"} (J2000) with an uncertainty of 3 arcmin
(radius, 90% containment, including systematic uncertainty).
This position is consistent with SGR 1900+14 (3.3 arcminutes).
The BAT light curve shows a single spike with a FWHM less than
128 msec at T_zero. The peak count rate was ~1600 counts/sec
(15-350 keV), at ~0 sec after the trigger. This Soft Gamma-ray
Repeater has not been active since late 2002.
This source is being followed up by Swift as a Target of Opportunity.
