GCN Circular 7516

Subject

GRB 080325: Early observations from OSN

Event

Date

2008-03-25T18:33:39Z (18 years ago)

From

Antonio Deugarte at IAA-CSIC <deugarte@iaa.es>

A. de Ugarte Postigo (ESO, Chile), A. Sota,
J.Gorosabel, A.J. Castro-Tirado (IAA-CSIC) report,

We have observed the field of GRB 080325  (Vetere et al.
GCN 7512Loading...
 
 ) with the 1.5m OSN telescope at Sierra Nevada
Observatory (Granada, Spain) starting at 04:23:01 UT, 12.48
minutes after the burst. Inside the initial XRT error box
there is an object with coordinates R.A.: 18:31:34.13
Dec.: +36:31:19.8 (J2000 +/- 0.5"), which is also present in
the DSS, consistent with the coordinates reported by
Updike et al. (GCN 7515Loading...
 
 ). Inside the refined XRT error box
(Osborne et al. GCN 7513Loading...
 
 ) we do not detect any new source
down to the following 3-sigma limits (t-t0 being the mean
observing time since the GRB):

(t-t0) (min)  |  Exp. time  (s)   |  I-band limit
12.65          |  20                     |  > 19.5
14.36          | 9x20                  |  > 20.8
39.46          | 2300s                |  > 21.8

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