Abstract We present u’g’R optical images taken with the MMT/Megacam and the Subaru/Suprime telescopes of the Extended Groth Strip survey. The total survey covers an area of about ~ 1 degree2, including four sub-fields and is optimized for the study of galaxies at z~3. Our methods for photometric calibration in AB magnitudes, the limiting magnitude and the galaxy number count are described. A sample of 1642 photometrically selected candidate Lyman-Break Galaxies (LBGs) to an apparentRAB magnitude limit of 25.0 is presented. The average sky surface density of our LBG sample is ~1.0 arcmin−2, slightly higher than the previous finding.
Keywords galaxies: high-redshift -- galaxies: photometry -- surveys
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