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Article Dans Une Revue The Astrophysical Journal Supplement Series Année : 2007

The COSMOS Survey: Hubble Space Telescope Advanced Camera for Surveys Observations and Data Processing

A. M. Koekemoer
  • Fonction : Auteur
H. Aussel
D. Calzetti
  • Fonction : Auteur
P. Capak
M. Giavalisco
  • Fonction : Auteur
R. Massey
  • Fonction : Auteur
B. Mobasher
  • Fonction : Auteur
J. Rhodes
N. Scoville
  • Fonction : Auteur
P. L. Shopbell
  • Fonction : Auteur

Résumé

We describe the details of the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) Wide Field Channel (WFC) observations of the COSMOS field, including the data calibration and processing procedures. We obtained a total of 583 orbits of HST ACS/WFC imaging in the F814W filter, covering a field that is 1.64 deg2 in area, the largest contiguous field ever imaged with HST. The median exposure depth across the field is 2028 s (one HST orbit), achieving a limiting point-source depth AB(F814W)=27.2 (5 σ). We also present details of the astrometric image registration and distortion removal and image combination using MultiDrizzle, motivating the choice of our final pixel scale (30 mas pixel-1), based on the requirements for weak-lensing science. The final set of images are publicly available through the archive sites at IPAC and STScI, along with further documentation on how they were produced.

Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy (AURA), Inc., under NASA contract NAS 5-26555 also based on data collected at: the Subaru Telescope, which is operated by the National Astronomical Observatory of Japan; the XMM-Newton, an ESA science mission with instruments and contributions directly funded by ESA Member States and NASA; the European Southern Observatory under Large Program 175.A-0839, Chile; Kitt Peak National Observatory, Cerro Tololo Inter-American Observatory, and the National Optical Astronomy Observatory, which are operated by AURA under cooperative agreement with the National Science Foundation; the National Radio Astronomy Observatory which is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc; and the Canada-France-Hawaii Telescope (CFHT) with MegaPrime/MegaCam operated as a joint project by the CFHT Corporation, CEA/DAPNIA, the National Research Council of Canada, the Canadian Astronomy Data Centre, the Centre National de la Recherche Scientifique de France, TERAPIX, and the University of Hawaii.

Dates et versions

hal-03646567 , version 1 (19-04-2022)

Identifiants

Citer

A. M. Koekemoer, H. Aussel, D. Calzetti, P. Capak, M. Giavalisco, et al.. The COSMOS Survey: Hubble Space Telescope Advanced Camera for Surveys Observations and Data Processing. The Astrophysical Journal Supplement Series, 2007, 172, pp.196-202. ⟨10.1086/520086⟩. ⟨hal-03646567⟩
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