Skip to main content
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 2852

Subject
GRB041211: Faulkes Telescope continued optical monitoring
Date
2004-12-17T19:10:01Z (19 years ago)
From
Alessandro Monfardini at JMU/Liverpool Robotic Tele <am@astro.livjm.ac.uk>
A. Monfardini, C. Guidorzi, C.J. Mottram, C. Mundell (Liverpool John 
Moores University) and the Liverpool GRB team, on behalf of the larger 
Robonet consortium, report:

"We obtained late BVRI images of the SXC error box of GRB041211 (GCN 2839) 
with the 2-m Faulkes Telescope North on Maui. New observations began on 
December 15.549 UT (4.069 days after the GRB) under average seeing conditions.

We compared 3x120 sec. R filter exposures with an early 120 sec exposure 
(GCN 2845). We found no significant variations or disappearances. 
We thus conclude:

Time from GRB   Time from GRB   ExpTime    Filter    Limit Mag.
(days)          (hours)         (s)
---------------------------------------------------------------
0.140           3.36            120        R         > 21.5

The probability of chance positional coincidence with a field star has 
been estimated to be approximately 0.06.

The above limit magnitude has been derived using the calibration provided
by Henden et al. (GCN 2844)."

This message can be cited.
Looking for U.S. government information and services? Visit USA.gov