[vsnet-grb-info 6950] GRB 081016b, SMARTS optical/IR observations
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Fri Nov 21 07:50:46 JST 2008
TITLE: GCN CIRCULAR
NUMBER: 8534
SUBJECT: GRB 081016b, SMARTS optical/IR observations
DATE: 08/11/20 22:50:32 GMT
FROM: Bethany Cobb at UC Berkeley <bcobb at astro.berkeley.edu>
B. E. Cobb (UC Berkeley) reports:
Using the ANDICAM instrument on the 1.3m telescope at CTIO, we
obtained optical/IR imaging of the error region of GRB 081016b
(Page et al. GCN 8381) with a mid-exposure time of 4.3 hours
post-burst (2008-10-17 00:06 UT). Total summed exposure
times amounted to 36 minutes in I and 30 minutes in J.
No source is detected at the position of the X-ray
afterglow (Osborne et al. GCN 8383) to approximate
limiting magnitudes of I > 22.1 and J > 19.8. Magnitudes
are calibrated using Landolt standard stars in I, and 2MASS
stars in J.
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