ESIS BVR catalog, ELAIS-S1 (Berta+, 2006)

Details ESIS BVR catalog, ELAIS-S1 (Berta+, 2006) ESIS BVR catalog, ELAIS-S1 (Berta+, 2006)

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ycat..34510881b&link_type=abstract

VizieR On-line Data Catalog: J/A+A/451/881. Originally published in: 2006A&A...451..881B

Astronomy and Astrophysics

Astronomy

Surveys, Galaxies: Photometry, Photometry: Cousins

Scientific paper

The ESO-Spitzer extragalactic Imaging Survey (ESIS) is the optical follow up of the Spitzer Wide-Area InfraRed Extragalactic (SWIRE) survey in the ELAIS-S1 area.
The multiwavelength study of galaxy emission is the key to understand the interplay of the various components of galaxies and to trace their role in cosmic evolution. ESIS provides optical identification and colors of Spitzer IR galaxies and builds the bases for photometric redshift estimates. This paper presents B, V, R Wide Field Imager observations of the first 1.5 square degree of the ESIS survey. Data reduction includes astrometric calibration, illumination and color corrections. Synthetic sources are simulated in scientific and super-sky-flat images, with the purpose of estimating completeness and photometric accuracy for the survey. Number counts and color distributions are compared to literature observational and theoretical data, including non-evolutionary, PLE, evolutionary and semi-analytic Lambda-CDM galaxy models, as well as Milky Way stellar predictions.
Object coordinates are defined with an accuracy as good as ~0.15" rms with respect to GSC 2.2; flux uncertainties are ~2, 10, 20% at mag. 20, 23, 24 respectively (Vega); we reach 95% completeness at B, V~25 and R~24.5. ESIS galaxy number counts are in good agreement with previous works and are best reproduced by evolutionary and hierarchical Lambda-CDM scenarios.
(1 data file).

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