GCN Circular 26
Subject
GRB 971227: Optical Observations
Date
1998-01-04T00:00:00Z (27 years ago)
Edited On
2024-07-05T15:19:33Z (5 months ago)
From
Paul Groot at U. of Amsterdam <paulgr@astro.uva.nl>
Edited By
Vidushi Sharma at NASA GSFC/UMBC <vidushi.sharma@nasa.gov> on behalf of Tyler Barna at University of Minnesota <tylerpbarna@gmail.com>
T.J. Galama, P.J. Groot (University of Amsterdam), S. Bianchi and J. Davies
(Cardiff), T. von Hippel (University of Wisconsin) and A. Diercks
(University of Washington, Seattle), J. van Paradijs (UoA and University of
Alabama in Huntsville), C. Kouveliotou (USRA at NASA/MSFC) report:
"As noted by many, the identification (GCN #21) of a galaxy with the
optical counterpart to GRB971227 proposed by Castro-Tirado et al (GCN
note #20, IAUC 6800), is incorrect. The galaxy is unrelated to the
proposed counterpart. We sincerely apologize for the confusion this
has caused to the community.
Comparison of the images taken with the Kitt Peak 0.9m telescope at
Dec. 29.53 UT, the Apache Point Observatory 3.5m Telescope at Dec 30.44 UT
and a 2700s exposure with the 2.5m Isaac Newton Telescope at La Palma
at Jan 03.10 UT of the region around the proposed OT, shows no variable
object at a level of more than 0.3mag down to R=21.5.
Please direct communications to paulgr@astro.uva.nl
[GCN Operator's Note: The archive of GCN Messages for GRB971227
can be found at: http://gcn.gsfc.nasa.gov/gcn/other/971227.gcn3]