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The 2dF Galaxy Redshift Survey: the blue galaxy fraction and implications for the Butcher-Oemler effect

De Propris, Roberto; Colless, Matthew; Peacock, John A; Couch, Warrick; Driver, Simon; Balogh, Michael; Baldry, Ivan K; Baugh, Carlton M; Bland-Hawthorn, Joss; Bridges, Terry C; Cannon, Russell; Cole, Shaun; Collins, Chris; Cross, Nicholas J G; Dalton, Gavin; Efstathiou, George; Ellis, Richard S; Frenk, Carlos S; Glazebrook, Karl; Hawkins, Edward; Jackson, Carole A; Lahav, Ofer; Lewis, Ian; Lumsden, Stuart; Maddox, Steve J; Madgwick, Darren; Norberg, Peder; Percival, Will J; Peterson, Bruce; Sutherland, William J; Taylor, Keith

Description

We derive the fraction of blue galaxies in a sample of clusters at z < 0.11 and the general field at the same redshift. The value of the blue fraction is observed to depend on the luminosity limit adopted, cluster-centric radius and, more generally, local galaxy density, but it does not depend on cluster properties. Changes in the blue fraction are due to variations in the relative proportions of red and blue galaxies but the star formation rate for these two galaxy groups remains unchanged....[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/87373
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1111/j.1365-2966.2004.07756.x

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