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

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

We have determined the luminosity function of 250 μm-selected galaxies detected in the ∼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 s...

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Bibliographic Details
Main Authors: Dye, S, Dunne, L, Eales, S, Smith, D, Amblard, A, Auld, R, Baes, M, Baldry, I, Bamford, S, Blain, A, Bonfield, D, Bremer, M, Burgarella, D, Buttiglione, S, Cameron, E, Cava, A, Clements, D, Cooray, A, Croom, S, Dariush, A, De Zotti, G, Driver, S, Dunlop, J, Frayer, D, Fritz, J
Format: Journal article
Language:English
Published: 2010
Description
Summary:We have determined the luminosity function of 250 μm-selected galaxies detected in the ∼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 μm luminosity density out to z = 0.2 where it is 3.6 +1.4-0.9 times higher than the local value. © 2010 ESO.

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