The Deep Optical Imaging of the Extended Groth Strip


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We present $ugR$ optical images taken with the MMT/Megacam and the Subaru/Suprime of the Extended Groth Strip survey. The total survey covers an area of about $sim 1$ degree$^2$, including four sub-fields and is optimized for the study of galaxies at $zsim3$. 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 LBGs to an apparent $R_{AB}$ magnitude limit of 25.0 is present. The average sky surface density of our LBGs sample is $sim$ 1.0 arcmin$^{-2}$, slightly higher than the previous finding.

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