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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The Herschel-ATLAS data release 1 - I. Maps, catalogues and number counts
Monthly Notices of the Royal Astronomical Society, Volume 462, No. 3, Year 2016
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Description
We present the first major data release of the largest single key-project in area carried out in open time with the Herschel Space Observatory. The Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) is a survey of 600 deg2 in five photometric bands - 100, 160, 250, 350 and 500 μm - with the Photoconductor Array Camera and Spectrometer and Spectral and Photometric Imaging Receiver (SPIRE) cameras. In this paper and the companion Paper II, we present the survey of three fields on the celestial equator, covering a total area of 161.6 deg2 and previously observed in the Galaxy and Mass Assembly (GAMA) spectroscopic survey. This paper describes the Herschel images and catalogues of the sources detected on the SPIRE 250 μm images. The 1s noise for source detection, including both confusion and instrumental noise, is 7.4, 9.4 and 10.2 mJy at 250, 350 and 500 μm. Our catalogue includes 120 230 sources in total, with 113 995, 46 209 and 11 011 sources detected at>4σ at 250, 350 and 500 μm. The catalogue contains detections at >3σ at 100 and 160 μm for 4650 and 5685 sources, and the typical noise at these wavelengths is 44 and 49 mJy. We include estimates of the completeness of the survey and of the effects of flux bias and also describe a novel method for determining the true source counts. The H-ATLAS source counts are very similar to the source counts from the deeper HerMES survey at 250 and 350 μm, with a small difference at 500 μm. Appendix A provides a quick start in using the released data sets, including instructions and cautions on how to use them. © 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.
Authors & Co-Authors
Valiante, Elisabetta
United Kingdom, Cardiff
Cardiff University
Smith, Matthew W.L.
United Kingdom, Cardiff
Cardiff University
Eales, Stephen A.
United Kingdom, Cardiff
Cardiff University
Maddox, Steve J.
United Kingdom, Cardiff
Cardiff University
United Kingdom, Edinburgh
The University of Edinburgh
Ibar, E.
Chile, Valparaiso
Universidad de Valparaiso
Hopwood, Rosalind H.B.
United Kingdom, London
Imperial College London
Dunne, Loretta
United Kingdom, Cardiff
Cardiff University
United Kingdom, Edinburgh
The University of Edinburgh
Cigan, Phil J.
United Kingdom, Cardiff
Cardiff University
Dye, S.
United Kingdom, Nottingham
University of Nottingham
Pascale, Enzo
United Kingdom, Cardiff
Cardiff University
Rigby, Emma E.
Netherlands, Leiden
Universiteit Leiden
Bourne, Nathan
United Kingdom, Edinburgh
The University of Edinburgh
Furlanetto, C.
United Kingdom, Nottingham
University of Nottingham
Brazil, Brasilia
Ministry of Education Brazil
Ivison, Robert J.
United Kingdom, Edinburgh
The University of Edinburgh
Germany, Garching Bei Munchen
European Southern Observatory
Statistics
Citations: 143
Authors: 14
Affiliations: 8
Identifiers
Doi:
10.1093/mnras/stw1806
ISSN:
00358711
Study Design
Cross Sectional Study
Study Approach
Quantitative