A photometric study of faint galaxies in the field of GRB000926

We present our B , V , R c , and I c observations of a 3.6 ′ × 3 ′ field centered on the host galaxy of GRB 000926 ( α 2000 . 0 =17 h 04 m 11 s , δ 2000 . 0 =+51 o 47 ′ 9.8 ′′ ). The observations were carried out on the 6-m Special Astrophysical Observatory telescope using the SCORPIO instrument. The catalog of galaxies detected in this field includes 264 objects for which the signal-to-noise ratio is larger than 5 in each photometric band. The following limiting magnitudes in the catalog correspond to this limitation: 26.6( B ), 25.7( V ), 25.8( R c ), and 24.5( I c ). The differential galaxy counts are in good agreement with previously published CCD observations of deep fields. We estimated the photometric redshifts for all of the cata-loged objects and studied the color variations of the galaxies with z . For luminous spiral galaxies with M ( B ) < − 18, we found no evidence for any noticeable evolution of their linear sizes to z ∼ 1.