skip to main content

Title: CANDELS MULTI-WAVELENGTH CATALOGS: SOURCE DETECTION AND PHOTOMETRY IN THE GOODS-SOUTH FIELD

We present a UV to mid-infrared multi-wavelength catalog in the CANDELS/GOODS-S field, combining the newly obtained CANDELS HST/WFC3 F105W, F125W, and F160W data with existing public data. The catalog is based on source detection in the WFC3 F160W band. The F160W mosaic includes the data from CANDELS deep and wide observations as well as previous ERS and HUDF09 programs. The mosaic reaches a 5{sigma} limiting depth (within an aperture of radius 0.''17) of 27.4, 28.2, and 29.7 AB for CANDELS wide, deep, and HUDF regions, respectively. The catalog contains 34,930 sources with the representative 50% completeness reaching 25.9, 26.6, and 28.1 AB in the F160W band for the three regions. In addition to WFC3 bands, the catalog also includes data from UV (U band from both CTIO/MOSAIC and VLT/VIMOS), optical (HST/ACS F435W, F606W, F775W, F814W, and F850LP), and infrared (HST/WFC3 F098M, VLT/ISAAC Ks, VLT/HAWK-I Ks, and Spitzer/IRAC 3.6, 4.5, 5.8, 8.0 {mu}m) observations. The catalog is validated via stellar colors, comparison with other published catalogs, zero-point offsets determined from the best-fit templates of the spectral energy distribution of spectroscopically observed objects, and the accuracy of photometric redshifts. The catalog is able to detect unreddened star-forming (passive) galaxies with stellar massmore » of 10{sup 10} M{sub Sun} at a 50% completeness level to z {approx} 3.4 (2.8), 4.6 (3.2), and 7.0 (4.2) in the three regions. As an example of application, the catalog is used to select both star-forming and passive galaxies at z {approx} 2-4 via the Balmer break. It is also used to study the color-magnitude diagram of galaxies at 0 < z < 4.« less
Authors:
; ; ;  [1] ; ; ; ;  [2] ;  [3] ; ;  [4] ;  [5] ; ; ;  [6] ;  [7] ;  [8] ;  [9] ; ;  [10] more »; « less
  1. UCO/Lick Observatory, Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA (United States)
  2. Space Telescope Science Institute, Baltimore, MD (United States)
  3. Department of Astronomy, University of Massachusetts, Amherst, MA (United States)
  4. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  5. Los Alamos National Laboratory, Los Alamos, NM (United States)
  6. INAF-Osservatorio di Roma, I-00040 Monteporzio (Italy)
  7. Department of Physics and Astronomy, University of Kentucky, Lexington, KY (United States)
  8. Department of Physics and Astronomy, Colby College, Waterville, ME (United States)
  9. Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD (United States)
  10. Max-Planck-Institut fur Extraterrestrische Physik, D-85741 Garching bei Munchen (Germany)
Publication Date:
OSTI Identifier:
22140308
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal, Supplement Series; Journal Volume: 207; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCURACY; APERTURES; CATALOGS; COLOR; DATA ANALYSIS; DETECTION; ENERGY SPECTRA; GALAXIES; IMAGE PROCESSING; MASS; PHOTOMETRY; RED SHIFT; STARS; WAVELENGTHS