GRB060111A

Details GRB060111A GRB060111A

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006gcn..4493....1k&link_type=abstract

GRB Coordinates Network, 4493, 1, 2006

Physics

Grb, Optical Counterpart

Scientific paper

We observed field around of possible optical counterpart (Blustin et al., GCN4482) of GRB060111A (Swift trigger 176818) with Russian-Turkish 1.5-m telescope (RTT150, Bakyrlytepe, TUBITAK National Observatory, Turkey), starting on Jan. 12, 03:37UT, i.e. ~23.2 hours after the burst.
A series of frames (8*300s exposures in R band) were taken. The afterglow candidate was detected only marginally near the detection limit of our combined image, which is estimated as R~23.2 (photometry is USNO-B1 calibrated). We also note that at about 5 arcsec from the OT we detected an extended source whith R=21.75+/-0.1, which may be a host galaxy of the GRB. The coordinates of this galaxy are RA= 18h24m49.01s (J2000.0) DEC=+37d36'09."6 (J2000.0).
The finding chart can be found at: http://www.tug.tubitak.gov.tr/~irekk/grb/grb060111a/grb060111A.JPG
Also we have to do a correction to GCN4493: We detected extended source in direction to SE, not NW. The upper limit for the GRB060111B OT is also actually deeper: R=~23.6 (the difference is due to corrected error in photometric calibration).

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