TITLE: GCN CIRCULAR NUMBER: 6256 SUBJECT: Short GRB 070406 - Possible Bright Host Galaxy DATE: 07/04/07 20:00:52 GMT FROM: Alexander Kann at TLS Tautenburg D. A. Kann (TLS Tautenburg) reports: At the position of the possible X-ray afterglow (Troja, Page & McBreen, GCN 6255) of the short GRB 070406 (Cummings et al., GCN 6247), there is a bright galaxy (at least, it is flagged as such) detected in the SDSS at position (J2000): RA = 13:15:51.6 Dec = +16:30:48.31 This is 3".75 away in RA and 1".41 in Dec. and thus within the error circle. The (model) magnitudes are: u' = 20.017 +/- 0.050 b' = 19.775 +/- 0.016 v' = 19.720 +/- 0.019 r' = 19.630 +/- 0.025 i' = 19.510 +/- 0.078 It is thus quite blue. Further X-ray observations should show if this is possibly only an AGN. Spectroscopy of this galaxy is strongly encouraged. This message may be cited.