Herschel-ATLAS: Dust temperature and redshift distribution of SPIRE and PACS detected sources using submillimetre colours

A Amblard, Asantha Cooray, P Serra, P Temi, E Barton, M Negrello, R Auld, M Baes, Ivan Baldry, Steven Bamford, A Blain, James Bock, D Bonfield, D Burgarella, S Buttiglione, Ewan Cameron, A Cava, D Clements, Scott Croom, A DariushG De Zotti, Simon Driver, James Dunlop, L Dunne, S Dye, S Eales, D Frayer, J Fritz, Jonathan Gardner, J Gonzalez-Nuevo, D Herranz, D Hill, Andrew Hopkins, D Hughes, E Ibar, R Ivison, M Jarvis, David Jones, L Kelvin, G Lagache, L Leeuw, J Liske, M Lopez-Caniego, J Loveday, S Maddox, M Michalowski, Peder Norberg, H Parkinson, John Peacock, C Pearson, E Pascale, M Pohlen, Cristina Popescu, Matthew Prescott, A Robotham, E Rigby, G Rodighiero, S Samui, Anne Sansom, Douglas Scott, S Serjeant, Robert Sharp, B Sibthorpe, D Smith, M Thompson, R Tuffs, I Valtchanov, E van Kampen, P van der Werf, A Verma, J Vieira, C Vlahakis

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Abstract

We present colour-colour diagrams of detected sources in the Herschel-ATLAS science demonstration field from 100 to 500 I?m 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 3I?, we find an average dust temperature of (28A?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 I?m and detected at 250 and 500 I?m with a significance greater than 3I?, we find an average redshift of 2.2A?0.6
Original languageEnglish
Pages (from-to)1 - 5
Number of pages5
JournalAstronomy & Astrophysics
Volume518
Issue number1
DOIs
Publication statusPublished - 2010
Externally publishedYes

Cite this

Amblard, A., Cooray, A., Serra, P., Temi, P., Barton, E., Negrello, M., Auld, R., Baes, M., Baldry, I., Bamford, S., Blain, A., Bock, J., Bonfield, D., Burgarella, D., Buttiglione, S., Cameron, E., Cava, A., Clements, D., Croom, S., ... Vlahakis, C. (2010). Herschel-ATLAS: Dust temperature and redshift distribution of SPIRE and PACS detected sources using submillimetre colours. Astronomy & Astrophysics, 518(1), 1 - 5. https://doi.org/10.1051/0004-6361/201014586