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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 358583.0, MPI für Astronomie / Publikationen_mpia
COSMOS: Hubble Space Telescope observations
Authors:Scoville, N.; Abraham, R. G.; Aussel, H.; Barnes, J. E.; Benson, A.; Blain, A. W.; Calzetti, D.; Comastri, A.; Capak, P.; Carilli, C.; Carlstrom, J. E.; Carollo, C. M.; Colbert, J.; Daddi, E.; Ellis, R. S.; Elvis, M.; Ewald, S. P.; Fall, M.; Franceschini, A.; Giavalisco, M.; Green, W.; Griffiths, R. E.; Guzzo, L.; Hasinger, G.; Impey, C.; Kneib, J. P.; Koda, J.; Koekemoer, A.; Lefevre, O.; Lilly, S.; Liu, C. T.; McCracken, H. J.; Massey, R.; Mellier, Y.; Miyazaki, S.; Mobasher, B.; Mould, J.; Norman, C.; Refregier, A.; Renzini, A.; Rhodes, J.; Rich, M.; Sanders, D. B.; Schiminovich, D.; Schinnerer, E.; Scodeggio, M.; Sheth, K.; Shopbell, P. L.; Taniguchi, Y.; Tyson, N. D.; Urry, C. M.; Van Waerbeke, L.; Vettolani, P.; White, S. D. M.; Yan, L.
Date of Publication (YYYY-MM-DD):2007
Title of Journal:The Astrophysical Journal Supplement Series
Start Page:38
End Page:45
Audience:Not Specified
Abstract / Description: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 deg2) has been imaged with single-orbit ACS I-band F814W exposures with 50% completeness for sources 0.5" in diameter at IAB=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. Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555.
Free Keywords:Cosmology: Observations; Cosmology: Dark Matter; Galaxies: Evolution; Galaxies: Formation; Cosmology: Large-Scale Structure of Universe; Surveys
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
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