Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 4519

Subject
GRB 060116: Swift-BAT detection of a burst
Date
2006-01-16T09:06:54Z (18 years ago)
From
Scott Barthelmy at NASA/GSFC <Scott@lheamail.gsfc.nasa.gov>
S. Campana (INAF-OAB), S. Barthelmy (GSFC), N. Gehrels (GSFC),
C. Gronwall (PSU), J. Kennea (PSU), C. Markwardt (GSFC/UMD),
K. Page (U Leicester), D. Palmer (LANL), M. Perri (ASDC)
on behalf of the Swift team:

At 08:37:27 UT, Swift-BAT triggered and located GRB 060116 (trigger=177533).
The spacecraft slewed immediately.  The BAT on-board calculated location is
RA,Dec 84.699d,-5.449d {05h 38m 48s,-05d 26' 54"} (J2000), with an uncertainty
of 3 arcmin (radius, 90% containment, stat+sys).  The BAT light curve shows
a multi-peak structure with a total duration of ~35 sec.  The peak count rate
was ~600 counts/sec (15-350 keV), at several times after the trigger.

XRT began observing the field at 08:40:00.75 UT, 154 sec after the BAT trigger.
The on-board detection algorithm did not centroid on a source due to
insufficient counts so no prompt X-ray position is available.  The XRT prompt
spectrum and lightcurve show no signficant X-ray emission in the field,
suggesting that any X-ray counterpart to this burst is faint.  Further analysis
will require processing of the XRT full telemetry data following the next
ground station contact at 09:32 UT.

UVOT took a finding chart exposure of 200 seconds with the V filter
starting 153 seconds after the BAT trigger.  No afterglow candidate has
been found in the initial data products.  The 2.7'x2.7' sub-image covers
25% of the BAT error circle.  The typical 3-sigma upper limit has been
about 18th mag.  The 8'x8' region for the list of sources generated
on-board covers 100% of the BAT error circle.  The list of sources is
typically complete to about 18.0 mag.  No correction has been made for
the expected visual extinction of about 0.9 magnitudes.
Looking for U.S. government information and services? Visit USA.gov