GCN Circular 15628
Subject
GRB 131229A: P60 nondetection
Date
2013-12-29T07:15:30Z (10 years ago)
From
Daniel Perley at Caltech <dperley@astro.caltech.edu>
D. A. Perley (Caltech) reports on behalf of a larger collaboration:
The robotic Palomar 60-inch telescope automatically responded to GRB
131229A (Page et al., GCN 15627) and began a sequence of 60-second image
starting at 06:44:54 UT, 5.5 minutes after the burst.
In the initial r-band image we identify no sources within the XRT error
circle down to a limiting magnitude of R > 20.5. No source in the error
circle is detected in the i- or z-band filters either.
We do detect a source not present in USNO B1.0 well north of the XRT
error circle at RA=05:40:55.702, dec=-04:23:21.11 (J2000). It does not
appear to be fading in images taken so far.
Further P60 observations are ongoing. NIR observations are encouraged.