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Cosmos: Hubble space telescope observations

  • N. Scoville
  • , R. G. Abraham
  • , H. Aussel
  • , J. E. Barnes
  • , 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. D. Tyson, C. M. Urry, L. Van Waerbeke, P. Vettolani, S. D.M. White, L. Yan
  • California Institute of Technology
  • University of Hawai'i at Mānoa
  • University of Toronto
  • Université Paris VII
  • Space Telescope Science Institute
  • Osservatorio Astronomico di Bologna
  • National Science Foundation
  • The University of Chicago
  • Swiss Federal Institute of Technology Zurich
  • National Optical Astronomy Observatory
  • Harvard-Smithsonian Ctr. Astrophys.
  • University of Padua
  • Carnegie Mellon University
  • Osservatorio Astronomico di Brera
  • Max Planck Institute for Extraterrestrial Physics
  • University of Arizona
  • LAM
  • City University of New York
  • Institut d'Astrophysique de Paris
  • CNRS UMR 8112
  • National Astronomical Observatory of Japan
  • Johns Hopkins University
  • European Southern Observatory
  • Jet Propulsion Laboratory, California Institute of Technology
  • University of California at Los Angeles
  • Columbia University
  • Max Planck Institute for Astronomy
  • National Research Council of Italy
  • Ehime University
  • American Museum of Natural History
  • Yale University
  • Max Planck Institute for Astrophysics

Research output: Contribution to journalArticlepeer-review

455 Scopus citations

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 deg 2) has been imaged with single-orbit ACS I-band F814W exposures with 50% completeness for sources 0.5″ in diameter at I AB = 26.0 mag. The ACS is a key part of the COSMOS survey, providing very high sensitivity and high-resolution (0.09″ FWHM and 0.05″ 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.

Original languageEnglish
Pages (from-to)38-45
Number of pages8
JournalAstrophysical Journal, Supplement Series
Volume172
Issue number1
DOIs
StatePublished - 2007

Keywords

  • Cosmology: observations
  • Dark matter
  • Galaxies: evolution
  • Galaxies: formation large-scale structure of universe
  • Surveys

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