[vsnet-grb-info 3368] GRB060602A: optical observations(/transient?)

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  5203
SUBJECT: GRB060602A: optical observations(/transient?)
DATE:    06/06/03 02:31:33 GMT
FROM:    Brian Lindgren Jensen at U.of Copenhagen  <brian_j at astro.ku.dk>

Brian L. Jensen, Jens Hjorth, Johan Fynbo (Dark Cosmology Centre, NBI),
Jyri Näränen (University of Helsinki) report:

"We have observed the field of GRB060602A (Schady et al., GCN 5196) in
the R-band with the NOT+ALFOSC (La Palma), starting at June 2.908 (15
min. after the burst). All R:6x300s cover the full 3' radius BAT error
circle. Visual comparison to the SDSS (Cool et al., GCN 5197), does not
reveal any new bright sources in the field.
However, a faint source, not readily apparent on SDSS (r-band), is
observed at:

RA  =  09:58:16.73
Dec = +00:18:12.7
- located 1.2' from the centre of the BAT error-circle.

A preliminary calibration to SDSS photometry of the field (Cool et al.,
GCN 5197) yields a magnitude for the source of R~22.5+-0.3. Further
observations are needed in order to determine whether the source is
transient.

A finding chart is available at:
http://www.astro.ku.dk/~brian_j/grb/grb060602.897/ "