GCN Circular 16041
Subject
Swift trigger 593744: detection of a flare from UV Cet
Date
2014-03-29T18:54:29Z (11 years ago)
From
Scott Barthelmy at NASA/GSFC <scott@milkyway.gsfc.nasa.gov>
S. D. Barthelmy (GSFC), N. Gehrels (NASA/GSFC), J. A. Kennea (PSU) and
D. M. Palmer (LANL) report on behalf of the Swift Team:
At 15:18:44 UT, the Swift Burst Alert Telescope (BAT) triggered and
located a peak consistent with the flare star UV Cet (trigger=593744).
Swift could not slew to the location due to the Sun constraint.
The BAT on-board calculated location is
RA, Dec 24.764, -17.961, which is
RA(J2000) = 01h 39m 03s
Dec(J2000) = -17d 57' 40"
with an uncertainty of 3 arcmin (radius, 90% containment, including
systematic uncertainty). The BAT light curve showed no obvious
activity, as is typical for a 64 second image trigger.
Because of the Sun constraint, Swift will not be able to observe
this source with the XRT and UVOT at this time.
Although the image peak was of marginal significance (6.28 sigma)
the close proximity to the known source location (0.013 degrees) and its
status as a flare star make it highly likely that this is
a real astrophysical event.