Journal
ASTRONOMY & ASTROPHYSICS
Volume 553, Issue -, Pages -Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201321371
Keywords
galaxies: evolution; infrared: galaxies; galaxies: starburst; galaxies: statistics
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Funding
- BMVIT (Austria)
- ESA-PRODEX (Belgium)
- CEA/CNES (France)
- DLR (Germany)
- ASI/INAF (Italy)
- CICYT/MCYT (Spain)
- NASA through JPL/Caltech
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We present results from the deepest Herschel-Photodetector Array Camera and Spectrometer (PACS) far-infrared blank field extragalactic survey, obtained by combining observations of the Great Observatories Origins Deep Survey (GOODS) fields from the PACS Evolutionary Probe (PEP) and GOODS-Herschel key programmes. We describe data reduction and the construction of images and catalogues. In the deepest parts of the GOODS-S field, the catalogues reach 3 sigma depths of 0.9, 0.6 and 1.3 mJy at 70, 100 and 160 mu m, respectively, and resolve similar to 75% of the cosmic infrared background at 100 mu m and 160 mu m into individually detected sources. We use these data to estimate the PACS confusion noise, to derive the PACS number counts down to unprecedented depths, and to determine the infrared luminosity function of galaxies down to L-IR = 10(11) L-circle dot at z similar to 1 and L-IR = 10(12) L-circle dot at z similar to 2, respectively. For the infrared luminosity function of galaxies, our deep Herschel far-infrared observations are fundamental because they provide more accurate infrared luminosity estimates than those previously obtained from mid-infrared observations. Maps and source catalogues (>3 sigma) are now publicly released. Combined with the large wealth of multi-wavelength data available for the GOODS fields, these data provide a powerful new tool for studying galaxy evolution over a broad range of redshifts.
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