GCN Circular 114

GRB 980613:  Detection of the probable host galaxy

S. G. Djorgovski, S. R. Kulkarni, S. C. Odewahn (Caltech), and H. Ebeling
(IfA, Univ. of Hawaii), report on behalf of the Caltech GRB collaboration:

Images of the field of GRB 980613 were obtained bu H. Ebeling at the Keck-II 
telescope on UT 1998 June 16.3, in the R band.  We detect a galaxy coincident 
to within 0.5 arcsec with the optical transient (OT) reported by Hjorth et al.
(GCN circ. 109
Not found
 
 
).  The galaxy may include a faint, unresolved source, which
may be the faded OT.  The preliminary total magnitude of the object at the 
epoch of our observations, assuming the zero-point given by Hjorth et al.
(R = 19.1 for their star 1, which is identical to star 2 of Diercks et al.,
GCN circ. 108
Not found
 
 
), is  R ~ 23.3, which is consistent with the conservative
upper limits reported by Hjorth et al. for their June 17 image.  We 
propose that this is the host galaxy of GRB 980613.

Further analysis of these data is in progress.  Images will be posted at:
http://astro.caltech.edu/~george/grb/grb980613.html

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