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 7911

GRB 080701: Swift-XRT Prompt Analysis
2008-07-01T12:16:48Z (16 years ago)
Michael Stroh at PSU/Swift <>
M.C. Stroh, C. Pagani (PSU) and P. Evans (U. Leicester) report on  
behalf of the Swift-XRT team.

The XRT began observing the field at 11:00:14.4 UT, 2796.8 seconds
after the BAT trigger. Using promptly downlinked data we find an
uncatalogued X-ray source located at RA, Dec 45.83937, 75.47535 which
is equivalent to:
  RA(J2000)  = 03h 03m 21.45s
  Dec(J2000) = +75d 28' 31.3"
with an uncertainty of 3.1 arcseconds (radius, 90% containment). This
location is 59 arcseconds from the BAT onboard position, within the BAT
error circle.

A power-law fit to a spectrum formed from promptly downlinked event
data gives a column density in excess of the Galactic value (1.78e+21
cm-2, Kalberla et al. 2005), with an excess column of 6.3
(+3.88/-3.07) x 10^21 cm-2 (90% confidence).

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