Herschel-ATLAS: Dust temperature and redshift distribution of SPIRE and PACS detected sources using submillimetre colours
- Creators
- Amblard, A.
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Blain, A.
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Bock, J.
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Frayer, D.
- Vieira, J.
Abstract
We present colour–colour diagrams of detected sources in the Herschel-ATLAS science demonstration field from 100 to 500 μm using both PACS and SPIRE. We fit isothermal modified black bodies to the spectral energy distribution (SED) to extract the dust temperature of sources with counterparts in Galaxy And Mass Assembly (GAMA) or SDSS surveys with either a spectroscopic or a photometric redshift. For a subsample of 330 sources detected in at least three FIR bands with a significance greater than 3σ, we find an average dust temperature of (28±8) K. For sources with no known redshift, we populate the colour–colour diagram with a large number of SEDs generated with a broad range of dust temperatures and emissivity parameters, and compare to colours of observed sources to establish the redshift distribution of this sample. For another subsample of 1686 sources with fluxes above 35 mJy at 350 μm and detected at 250 and 500 μm with a significance greater than 3σ, we find an average redshift of 2.2 ± 0.6.
Additional Information
© 2010 ESO. Received 30 March 2010, Accepted 26 April 2010, Published online 16 July 2010. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA. Amblard, Barton, Cooray, Leeuw, Serra and Temi acknowledge support from NASA funds for US participants in Herschel through JPL. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the US Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web Site is http://www. sdss.org/. The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The UKIDSS project is defined in Lawrence et al. (2007).Attached Files
Published - Amblard2010p11844Astron_Astrophys.pdf
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Additional details
- Eprint ID
- 21024
- Resolver ID
- CaltechAUTHORS:20101124-113357521
- NASA
- Alfred P. Sloan Foundation
- NSF
- Department of Energy (DOE)
- Japanese Monbukagakusho
- Max Planck Society
- England Higher Education Funding Council
- Created
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2010-11-29Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field