COSMOS: Hubble Space Telescope Observations

By N. Scoville, R. Abraham, H. Aussel, J. Barnes, A. Benson, A. Blain, D. Calzetti, A. Comastri, P. Capak, C. Carilli and 45 more. 2006

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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.

Subfields: Astronomy and Astrophysics, Electrical and Electronic Engineering, Instrumentation

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Citations in the corpus

DISSECTING PHOTOMETRIC REDSHIFT FOR ACTIVE GALACTIC NUCLEUS USING XMM- AND CHANDRA-COSMOS SAMPLES (2011, neutral): “The constraint of source redshifts has been a primary goal of deep pencil-beam (e.g., HUDF: Williams et al. (1996)), wide-area (e.g. AEGIS: Davis et al. (2007); COSMOS: Scoville et al. (2007), GOODS: Giavalisco et al. (2004); ECDFS: Lehmer et al. (2005); CFHTLS: Cuillandre & Bertin (2006)), as well ”
The structures of distant galaxies – III. The merger history of over 20 000 massive galaxies at z < 1.2 (2008, methodology): “The 50% completeness of the COSMOS ACS data is IAB = 26 (Scoville et al. 2007).”
STRUCTURAL PARAMETERS OF GALAXIES IN CANDELS (2012, methodology): “…AZ 85719, USA 11 Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA 12 Giant Magellan Telescope Organization 251, South Lake Avenue, Suite 300, Pasadena, CA 91101, USA cal’ wavelengths (e.g., Giavalisco et al. 2004; Rix et al. 2004; Scoville et al. 2007).”
EVOLUTION OF GALAXIES AND THEIR ENVIRONMENTS AT z = 0.1–3 IN COSMOS (2013, methodology): “For the adaptive smoothing algorithm discussed in Scoville et al. (2007b), each galaxy is distributed in z according to its photoz PDF (probability density function); for the Voronoi tessellation, each galaxy is placed at the maximum likelihood photometric redshift.”
CLASH: THREE STRONGLY LENSED IMAGES OF A CANDIDATE z ≈ 11 GALAXY (2012, methodology): “For this analysis we used a SED template library primarily from Ilbert et al. (2009) as optimized for the COSMOS survey (Scoville et al. 2007b,a; Koekemoer et al. 2007).”
Multiwavelength Study of Massive Galaxies at z~2. I. Star Formation and Galaxy Growth (2007, methodology): “STAR FORMATION RATES IN z ¼ 2 GALAXIES: A RECIPE We summarize the work described in the previous sections by suggesting a recipe for obtaining the best estimates of SFRs for samples of z 2 galaxies, by exploiting a variety of multiwavelength SFR indicators as available in GOODS (and many of the curr”
Deep Spitzer 24 μm COSMOS Imaging. I. The Evolution of Luminous Dusty Galaxies—Confronting the Models (2009, methodology): “The Cosmic Evolution Survey (COSMOS) is designed to probe the evolution of galaxies and AGNs up to z ∼ 6 over a sky region large enough to address the role of environment and large scale structures (Scoville et al. 2007b).”
The bright end of the galaxy luminosity function at z≃7: before the onset of mass quenching? (2013, methodology): “Finally the field is also covered to single-orbit depth in the I814-band by the HST Advanced Camera for Surveys (ACS; Koekemoer et al. 2007; Scoville et al. 2007a; Massey et al. 2010).”
Evidence of the accelerated expansion of the Universe from weak lensing tomography with COSMOS (2009, methodology): “The COSMOS Survey (Scoville et al. 2007a) is the largest contiguous field observed with theHubble Space Telescope, spanning a total area of∼ 77′ × 77′ (1.64 deg2).”
The XMM-Newton Wide-Field Survey in the COSMOS Field. III. Optical Identification and Multiwavelength Properties of a Large Sample of X-Ray-Selected Sources (2006, background): “The primary goals of the “Cosmic Evolution Survey” (COSMOS, Scoville et al. 2007a) is to trace star formation and nuclear activity along with the mass assembly history of galaxies as a function of redshift and environment.”
UV LUMINOSITY FUNCTIONS AT REDSHIFTS z ∼ 4 TO z ∼ 10: 10,000 GALAXIES FROM HST LEGACY FIELDS (2014, methodology): “Given our use of photometric redshift estimates to move sources between our z ∼ 5, z ∼ 6, and z ∼ 7 samples over our CANDELS-UDS, CANDELS-COSMOS, and CANDELS-EGS fields (Appendix B.1), we derived the selection volumes for these samples in a similar manner.”
The Frontier Fields: Survey Design and Initial Results (2016, result): “…Extra-galactic Legacy Survey (CANDELS; Grogin et al. 2012; Koekemoer et al. 2012) built upon the previous HST ACS/WFC and Spitzer observations of the GOODS, GEMS (Rix et al. 2004), COSMOS (Scoville et al. 2007), EGS (Davis et al. 2007), and UDS (Lawrence et al. 2007) extragalactic legacy fields.”
COSBO: The MAMBO 1.2 Millimeter Imaging Survey of the COSMOS Field (2007, methodology): “The COSMOS HST imaging program has been designed to cover a wide area 1:4 ; 1:4 to address these issues (Scoville et al. 2007).”
The galaxy luminosity function at z ≃ 6 and evidence for rapid evolution in the bright end from z ≃ 7 to 5 (2014, methodology): “The UltraVISTA near-infrared imaging essential for this work lies within the COSMOS field (Scoville et al. 2007), which contains an abundance of multiwavelength imaging over 1–2 square degrees on the sky1.”
Deep GALEX Imaging of the COSMOS HST Field: A First Look at the Morphology of z ~ 0.7 Star-forming Galaxies (2007, methodology): “The paper is organized as such: we first shortly describe, in section 2, the COSMOS survey, its data, as well as the GALEX observations and data, before discussing our sample selection.”
THE BULK OF THE BLACK HOLE GROWTH SINCE z ∼ 1 OCCURS IN A SECULAR UNIVERSE: NO MAJOR MERGER–AGN CONNECTION (2010, background): “…tackle this long-standing issue by performing a comprehensive morphological analysis of a sample of X-ray-selected AGN host galaxies from the Cosmic Evolution Survey (COSMOS, Scoville et al. 2007b), the largest contiguous area ever imaged with the HST (Scoville et al. 2007a; Koekemoer et al. 2007).”
The First Release COSMOS Optical and Near-IR Data and Catalog (2007, background): “…accuracy, for modern cosmological surveys such as the Great Observatories Origins Deep Survey (GOODS) (Giavalisco et al. 2004), the Galaxy Evolution from Morphology and Spectral Energy Distributions (GEMS) survey (Rix et al. 2004), and the Cosmic Evolution Survey or COSMOS (Scoville et al. 2007b).”