Herschel-ATLAS: Evolution of the 250 microm luminosity function out to z = 0.5

S Dye, L Dunne, S Eales, D Smith, A Amblard, R Auld, M Baes, Ivan Baldry, Steven Bamford, A Blain, D Bonfield, M Bremer, D Burgarella, S Buttiglione, Ewan Cameron, A Cava, D Clements, Asantha Cooray, Scott Croom, A DariushG De Zotti, Simon Driver, James Dunlop, D Frayer, J Fritz, Jonathon P Gardner, H Gomez, J Gonzalez-Nuevo, D Herranz, D Hill, Andrew Hopkins, 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, M Negrello, Peder Norberg, M Page, H Parkinson, E Pascale, John Peacock, M Pohlen, Cristina Popescu, Matthew Prescott, D Rigopoulou, A Robotham, E Rigby, G Rodighiero, S Samui, Douglas Scott, S Serjeant, Robert Sharp, B Sibthorpe, P Temi, M Thompson, R Tuffs, I Valtchanov, P van der Werf, E van Kampen, A Verma

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Abstract

We have determined the luminosity function of 250 I?m-selected galaxies detected in the a??14 deg2 science demonstration region of the Herschel-ATLAS project out to a redshift of z = 0.5. Our findings very clearly show that the luminosity function evolves steadily out to this redshift. By selecting a sub-group of sources within a fixed luminosity interval where incompleteness effects are minimal, we have measured a smooth increase in the comoving 250 I?m luminosity density out to z = 0.2 where it is 3.6 +1.4-0.9 times higher than the local value
Original languageEnglish
Pages (from-to)1 - 5
Number of pages5
JournalAstronomy & Astrophysics
Volume518
Issue number1
DOIs
Publication statusPublished - 2010
Externally publishedYes

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