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

Journal Article · Thu Aug 15 00:00:00 EDT 2013 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.1088/0067-0049/207/2/24· OSTI ID:22140308

Yicheng, Guo; Barro, Guillermo; Faber, Sandra M.; Koo, David C. ^[1]; Ferguson, Henry C.; Dahlen, Tomas; Huang, Kuang-Han; Koekemoer, Anton M. ^[2]; Giavalisco, Mauro ^[3]; Willner, S. P.; Ashby, Matthew L. N. ^[4]; Donley, Jennifer L. ^[5]; Fontana, Adriano; Galametz, Audrey; Grazian, Andrea ^[6]; Kocevski, Dale D. ^[7]; McGrath, Elizabeth J. ^[8]; Peth, Michael ^[9]; Salvato, Mara; Wuyts, Stijn ^[10] ; others, and

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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)

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 mass 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.

• OSTI ID: 22140308
• Journal Information: Astrophysical Journal, Supplement Series, Vol. 207, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ACCURACY
APERTURES
CATALOGS
COLOR
DATA ANALYSIS
DETECTION
ENERGY SPECTRA
GALAXIES
IMAGE PROCESSING
MASS
PHOTOMETRY
RED SHIFT
STARS
WAVELENGTHS