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

GCN Circular 8487

Swift-XRT observations of GRB 081105
2008-11-06T15:41:23Z (16 years ago)
Andy Beardmore at U Leicester <>
A.P. Beardmore (U. Leicester) and J. Cummings (GSFC/UMBC)
report on behalf of the Swift-XRT  team.

The Swift-XRT started observing the field of the Swift-BAT and IPN
localization GRB 081105 (Cummings et al., GCN 8484) at
2008-11-06 05:18:07(UT), 15.8 hours after the trigger.

In an exposure of 5ks we detect an X-ray source within the BAT error
circle at RA, Dec = 3.95224, 3.47098, which is
RA  (J2000) =  00:15:48.5
Dec (J2000) = +03:28:15.5
with an uncertainty of 4.8 arcsec (radius, 90 percent confidence).

The observed count rate is (7.6+/-2.0)e-3 count/s. At this stage we cannot
tell whether the source is fading. Further Swift observations are planned.

This circular is an official product of the Swift-XRT team.
Looking for U.S. government information and services? Visit