GCN Circular 13475
Subject
Trigger 526660: Swift detection of 1 E 1841-045 (aka Kes 73)
Date
2012-07-15T04:56:24Z (12 years ago)
From
Scott Barthelmy at NASA/GSFC <scott@milkyway.gsfc.nasa.gov>
S. D. Barthelmy (GSFC), N. Gehrels (NASA/GSFC), S. R. Oates (UCL-MSSL)
and T. Sakamoto (NASA/UMBC) report on behalf of the Swift Team:
At 04:31:08 UT, the Swift Burst Alert Telescope (BAT) triggered on an outburst
1E 1841-045 (aka Kes 73) (trigger=526660). Swift did not slew because it was
given a low merit value (as is typical for known-source triggers).
The BAT on-board calculated location is
RA, Dec 280.349, -4.958, which is
RA(J2000) = 18h 41m 24s
Dec(J2000) = -04d 57' 27"
with an uncertainty of 3 arcmin (radius, 90% containment, including
systematic uncertainty). The BAT light curve shows a single spike with a
duration less than 64 msec. The peak count rate was ~1800 counts/sec
(15-350 keV), at ~0 sec after the trigger. We note that BAT previously
triggered on this source on 02 July 2011.
There is a known SGR at this location.