LEFT:
R:6x300s smoothed image (ca. 3x3 arcmin, N up, E left) taken with NOT+ALFOSC at June 02.92, 2006 UT at an airmass of 1.8 to 2.3. Seeing is ~1".
RIGHT:
r-band smoothed SDSS pre-burst image (from Cool et al., GCN 5197).
The inserts show un-smoothed close-ups of the OT position.
NUMBER: 5203 SUBJECT: GRB060602A: optical observations(/transient?) DATE: 06/06/03
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
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/
"