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26 April 2024

» arxiv » astro-ph/0612306

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COSMOS : Hubble Space Telescope Observations
N. Scoville ; A. Benson ; A. W. Blain ; D. Calzetti ; A. Comastri ; P. Capak ; C. Carilli ; J. E. Carlstrom ; C. M. Carollo ; J. Colbert ; E. Daddi ; R. S. Ellis ; M. Elvis ; S. P. Ewald ; M. Fall ; A. Franceschini ; M. Giavalisco ; W. Green ; R. E. Griffiths ; L. Guzzo ; G. Hasinger ; C. Impey ; J-P. Kneib ; J. Koda ; A. Koekemoer ; O. Lefevre ; S. Lilly ; C. T. Liu ; H. J. McCracken ; R. Massey ; Y. Mellier ; S. Miyazaki ; B. Mobasher ; J. Mould ; C. Norman ; A. Refregier ; A. Renzini ; J. Rhodes ; M. Rich ; D. B. Sanders ; D. Schiminovich ; E. Schinnerer ; M. Scodeggio ; K. Sheth ; P. L. Shopbell ; Y. Taniguchi ; N. Tyson ; C. M. Urry ; L. Van Waerbeke ; P. Vettolani ; S. D. M. White ; L. Yan ;
Date:	12 Dec 2006
Abstract:	The Cosmic Evolution Survey (COSMOS) was initiated with an extensive allocation (590 orbits in Cycles 12-13) using the Hubble Space Telescope (HST) for high resolution imaging. Here we review the characteristics of the HST imaging with the Advanced Camera for Surveys (ACS) and parallel observations with NICMOS and WFPC2. A square field (1.8$sq$deg) has been imaged with single-orbit ACS I-F814W exposures with 50% completeness for sources 0.5arcsec in diameter at I$_{AB} $ = 26.0 mag. The ACS imaging is a key part of the COSMOS survey, providing very high sensitivity and high resolution (0.09arcsec FWHM, 0.05arcsec pixels) imaging and detecting a million objects. These images yield resolved morphologies for several hundred thousand galaxies. The small HST PSF also provides greatly enhanced sensitivity for weak lensing investigations of the dark matter distribution.
Source:	arXiv, astro-ph/0612306
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