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arxiv: 0704.2430 · v1 · pith:Q2KSC5GTnew · submitted 2007-04-19 · 🌌 astro-ph

The First Release COSMOS Optical and Near-IR Data and Catalog

P. Capak , H. Aussel , M. Ajiki , H. J. McCracken , B. Mobasher , N. Scoville , P. Shopbell , Y. Taniguchi
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D. Thompson S. Tribiano S. Sasaki A. W. Blain M. Brusa C. Carilli A. Comastri C. M. Carollo P. Cassata J. Colbert R. S. Ellis M. Elvis M. Giavalisco W. Green L. Guzzo G. Hasinger O. Ilbert C. Impey K. Jahnke J. Kartaltepe J-P. Kneib J. Koda A. Koekemoer Y. Komiyama A. Leauthaud O. LeFevre S. Lilly R. Massey S. Miyazaki T. Murayama T. Nagao J. A. Peacock A. Pickles C. Porciani A. Renzini J. Rhodes M. Rich M. Salvato D. B. Sanders C. Scarlata D. Schiminovich E. Schinnerer M. Scodeggio K. Sheth Y. Shioya L. A. M. Tasca J. E. Taylor L. Yan G. Zamorani
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classification 🌌 astro-ph
keywords datagalaxyphotometricabsolutebettercalibrationcolorscosmos
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We present imaging data and photometry for the COSMOS survey in 15 photometric bands between 0.3um and 2.4um. These include data taken on the Subaru 8.3m telescope, the KPNO and CTIO 4m telescopes, and the CFHT 3.6m telescope. Special techniques are used to ensure that the relative photometric calibration is better than 1% across the field of view. The absolute photometric accuracy from standard star measurements is found to be 6%. The absolute calibration is corrected using galaxy spectra, providing colors accurate to 2% or better. Stellar and galaxy colors and counts agree well with the expected values. Finally, as the first step in the scientific analysis of these data we construct panchromatic number counts which confirm that both the geometry of the universe and the galaxy population are evolving.

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Cited by 1 Pith paper

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    Quiescent galaxies cluster more strongly than star-forming ones by 0.5-1 dex after halo-mass matching, with one-halo conformity up to z~2 that disappears at higher redshifts.