GCN Circular 13
Subject
GRB 971214: Redshift from Keck Optical Observations
Date
1997-12-18T00:00:00Z (27 years ago)
Edited On
2024-07-09T23:59:28Z (5 months ago)
From
Stanislav George Djorgovski at Caltech <djorgovski@caltech.edu>
Edited By
Vidushi Sharma at NASA GSFC/UMBC <vidushi.sharma@nasa.gov> on behalf of Tyler Barna at University of Minnesota <tylerpbarna@gmail.com>
GRB 971214 Optical Observations #013
S. G. Djorgovski, S. R. Kulkarni, J. S. Bloom (Caltech), R. Goodrich (WMKO),
and D. A. Frail (NRAO) report on behalf of the Caltech GRB collaboration:
"Analysis of the spectra of the proposed optical transient counterpart (OT)
of GRB 971214, obtained at the Keck-II 10-m telescope on 17 Dec 1997 UT,
shows a possible detection of an extended emission line at a wavelength of
7567 A. It is also intriguing that a faint emission line at a similar
wavelength (7533 A) has been detected from a faint galaxy about 4.5 arcsec
north of the OT (see our previous email on GCN3). If this line emission from
the OT is real, it can be interpreted as the [O II] 3727 line at z = 1.03.
However, we emphasize that this marginal detection has to be checked with
additional data."