The Herschel-ATLAS data release 2. Paper II. Catalogs of far-infrared and submillimeter sources in the fields at the south and north Galactic poles

Maddox, S.J. and Valiante, E. and Cigan, P.J. and Dunne, L. and Eales, S. and Smith, M.W.L. and Dye, S. and Furlanetto, C. and Ibar, E. and Zotti, G. de and Millard, J.S. and Bourne, N. and Gomez, H.L. and Ivison, R.J. and Scott, D. and Valtchanov, I. (2018) The Herschel-ATLAS data release 2. Paper II. Catalogs of far-infrared and submillimeter sources in the fields at the south and north Galactic poles. The Astrophysical Journal Supplement Series, 236 (2). 30/1-30/13. ISSN 1538-4365

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Abstract

The Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) is a survey of 660 deg2 with the PACS and SPIRE cameras in five photometric bands: 100, 160, 250, 350, and 500 μm. This is the second of three papers describing the data release for the large fields at the south and north Galactic poles (NGP and SGP). In this paper we describe the catalogs of far-infrared and submillimeter sources for the NGP and SGP, which cover 177.1 deg2 and 303.4 deg2, respectively. The catalogs contain 118,908 sources for the NGP field and 193,527 sources for the SGP field detected at more than 4σ significance in any of the 250, 350, or 500 μm bands. The source detection is based on the 250 μm map, and we present photometry in all five bands for each source, including aperture photometry for sources known to be extended. The rms positional accuracy for the faintest sources is about 2.4 arcsec in both R.A. and decl. We present a statistical analysis of the catalogs and discuss the practical issues—completeness, reliability, flux boosting, accuracy of positions, accuracy of flux measurements—necessary to use the catalogs for astronomical projects.

Item Type: Article
Keywords: Cosmology; Observations; Galaxies; Statistical methods; Data analysis; Submillimeter galaxies; Surveys
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number: https://doi.org/10.3847/1538-4365/aab8fc
Depositing User: Eprints, Support
Date Deposited: 13 Jun 2018 14:02
Last Modified: 14 Jun 2018 16:31
URI: http://eprints.nottingham.ac.uk/id/eprint/52387

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