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Herschel-ATLAS: first data release of the Science Demonstration Phase source catalogues

Rigby, E. E. and Frayer, D. (2011) Herschel-ATLAS: first data release of the Science Demonstration Phase source catalogues. Monthly Notices of the Royal Astronomical Society, 415 (3). pp. 2336-2348. ISSN 0035-8711. https://resolver.caltech.edu/CaltechAUTHORS:20110912-114535938

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Abstract

The Herschel Astrophysical Terahertz Large Area Survey (Herschel-ATLAS) is a survey of 550 deg^2 with the Herschel Space Observatory in five far-infrared and submillimetre bands. The first data for the survey, observations of a field 4 × 4 deg^2 in size, were taken during the Science Demonstration Phase (SDP), and reach a 5σ noise level of 33.5 mJy beam^(−1) at 250 μm. This paper describes the source extraction methods used to create the corresponding SDP catalogue, which contains 6876 sources, selected at 250 μm, within ~14 deg^2. Spectral and Photometric Imaging REciever (SPIRE) sources are extracted using a new method specifically developed for Herschel data and Photodetector Array Camera and Spectrometer (PACS) counterparts of these sources are identified using circular apertures placed at the SPIRE positions. Aperture flux densities are measured for sources identified as extended after matching to optical wavelengths. The reliability of this catalogue is also discussed, using full simulated maps at the three SPIRE bands. These show that a significant number of sources at 350 and 500 μm have undergone flux density enhancements of up to a factor of ~2, due mainly to source confusion. Correction factors are determined for these effects. The SDP data set and corresponding catalogue will be available from http://www.h-atlas.org.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1111/j.1365-2966.2011.18864.xDOIUNSPECIFIED
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2011.18864.x/abstractPublisherUNSPECIFIED
Additional Information:© 2011 The Authors. Monthly Notices of the Royal Astronomical Society © 2011 RAS. Accepted 2011 April 5. Received 2011 March 30; in original form 2010 October 22. The Herschel-ATLAS is a project with Herschel, which is an ESA space observatory with science instruments provided by Europeanled Principal Investigator consortia and with important participation from NASA. The H-ATLAS website is http://www.h-atlas.org/1. The US participants in Herschel-ATLAS acknowledge support provided by NASA through a contract issued from JPL. The Italian group acknowledges partial financial support from ASI/INAF agreement n. I/009/10/0.
Funders:
Funding AgencyGrant Number
NASA/JPLUNSPECIFIED
Agenzia Spaziale Italiana (ASI) Istituto Nazionale di Astrofisica (INAF)I/009/10/0
Subject Keywords: methods: data analysis; catalogues; surveys; galaxies: general; submillimetre: galaxies
Issue or Number:3
Record Number:CaltechAUTHORS:20110912-114535938
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110912-114535938
Official Citation:Rigby, E. E., Maddox, S. J., Dunne, L., Negrello, M., Smith, D. J. B., González-Nuevo, J., Herranz, D., López-Caniego, M., Auld, R., Buttiglione, S., Baes, M., Cava, A., Cooray, A., Clements, D. L., Dariush, A., De Zotti, G., Dye, S., Eales, S., Frayer, D., Fritz, J., Hopwood, R., Ibar, E., Ivison, R. J., Jarvis, M., Panuzzo, P., Pascale, E., Pohlen, M., Rodighiero, G., Serjeant, S., Temi, P. and Thompson, M. A. (2011), Herschel-ATLAS: first data release of the Science Demonstration Phase source catalogues. Monthly Notices of the Royal Astronomical Society, 415: 2336–2348. doi: 10.1111/j.1365-2966.2011.18864.x
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:25302
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:13 Sep 2011 21:37
Last Modified:03 Oct 2019 03:04

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