GCN Circular 901
Subject
GRB 001212 possible OA in 2MASS
Date
2000-12-14T23:39:32Z (24 years ago)
From
John E. Gizis at IPAC/Caltech <gizis@ipac.caltech.edu>
I have checked the candidate optical counterpart (GCN 900)
for GRB 001212 at RA(2000) = 06 49 38.1 Dec(2000) = +36 22 52 (+/- 2")
against the Two Micron All Sky Survey (2MASS) 2nd Incremental Release.
It is matched by a source observed on 1 April 1998. Source
2MASSI J0649380+362251 has J=15.220 +- 0.058, H=14.603 +- 0.083,
and Ks = 14.341 +- 0.079. These colors are typical for a
mid-M dwarf. Two non-GRB explanations for the observed brightening
of the source are a flare or color terms between the photographic plate
and the CCD. Finding charts and the 2MASS data are available by
entering these coordinates at the web site:
http://irsa.ipac.caltech.edu/
This publication makes use of data products from the Two Micron All Sky
Survey, which is a joint project of the University of Massachusetts
and the Infrared Processing and Analysis Center/California Institute of
Technology, funded by the National Aeronautics and Space Administration
and the National Science Foundation.
This message may be cited.
John E. Gizis, IPAC/Caltech