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

S. Dye, L. Dunne, S. Eales, D. J. B. Smith, A. Amblard, R. Auld, M. Baes, I. K. Baldry, S. Bamford, A. W. Blain, D. G. Bonfield, M. Bremer, D. Burgarella, S. Buttiglione, E. Cameron, A. Cava, D. L. Clements, A. Cooray, S. Croom, A. DariushG. de Zotti, S. Driver, J. S. Dunlop, D. Frayer, J. Fritz, Jonathan P. Gardner, H. L. Gomez, J. Gonzalez-Nuevo, D. Herranz, D. Hill, A. Hopkins, E. Ibar, R. J. Ivison, M. J. Jarvis, D. H. Jones, L. Kelvin, G. Lagache, L. Leeuw, J. Liske, M. Lopez-Caniego, S. Maddox, M. J. Michalowski, M. Negrello, P. Norberg, M. J. Page, H. Parkinson, E. Pascale, J. A. Peacock, M. Pohlen, C. Popescu, M. Prescott, D. Rigopoulou, A. Robotham, E. Rigby, G. Rodighiero, S. Samui, D. Scott, S. Serjeant, R. Sharp, B. Sibthorpe, P. Temi, M. A. Thompson, R. Tuffs, I. Valtchanov, P. P. van der Werf, E. van Kampen, A. Verma

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Abstract

We have determined the luminosity function of 250 mu m-selected galaxies detected in the similar to 14 deg(2) 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 mu m luminosity density out to z = 0.2 where it is 3.6(-0.9)(+1.4) times higher than the local value.

Original languageEnglish
Article numberL10
Pages (from-to)-
Number of pages5
JournalAstronomy & Astrophysics
Volume518
DOIs
Publication statusPublished - 2010

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