The 2dF Galaxy Redshift Survey: Luminosity functions by density environment and galaxy type

@article{Croton2004The2G,
  title={The 2dF Galaxy Redshift Survey: Luminosity functions by density environment and galaxy type},
  author={Darren J. Croton and Glennys R. Farrar and P. Norberg and Matthew Colless and John A Peacock and Ivan K. Baldry and Carlton M Baugh and Joss Bland-Hawthorn and Terry James Bridges and Russell D. Cannon and Shaun Cole and Chris A. Collins and Warrick J. Couch and Gavin B. Dalton and Roberto de Propris and Simon P. Driver and George P. Efstathiou and Richard S. Ellis and Carlos S. Frenk and Karl Glazebrook and Carole A. Jackson and Ofer Lahav and Ian J. Lewis and S. L. Lumsden and Stephen J. Maddox and Darren S. Madgwick and Bruce A. Peterson and William J. Sutherland and Keith Taylor},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2004},
  volume={356},
  pages={1155-1167}
}
We use the 2dF Galaxy Redshift Survey to measure the dependence of the bJ-band galaxy luminosity function on large-scale environment, defined by density contrast in spheres of radius 8h-1 Mpc, and on spectral type, determined from principal component analysis. We find that the galaxy populations at both extremes of density differ significantly from that at the mean density. The population in voids is dominated by late types and shows, relative to the mean, a deficit of galaxies that becomes… 

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