[vsnet-grb-info 13428] GRB 130603B: P60 Observations
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Wed Jun 5 00:54:47 JST 2013
TITLE: GCN CIRCULAR
NUMBER: 14761
SUBJECT: GRB 130603B: P60 Observations
DATE: 13/06/04 15:54:39 GMT
FROM: S. Bradley Cenko at Caltech <cenko at srl.caltech.edu>
S. B. Cenko (GSFC) and D. A. Perley (Caltech) report on behalf of a larger
collaboration:
We have imaged the field of the short-hard GRB 130603B (Melandri et al.,
GCN 14735) with the robotic Palomar 60 inch telescope. Images were
obtained in the r' and i' filters beginning at 04:00 on 2013 June 4 (~
12.2 hr after the Swift trigger).
At the location of the optical afterglow (Levan et al., GCN 14742), we
detect a source mildly blended with the presumed host galaxy. Using a
large aperture to include both objects, we measure a magnitude of r' =
20.8 at this time (calibrated with respect to several nearby point sources
from SDSS).
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