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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/43673
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- The 2dF Galaxy Redshift Survey: the number and luminosity density of galaxies
- Cross, Nicholas J. G.; Driver, Simon P.; Couch, Warrick; Baugh, Carlton; Bland-Hawthorn, Joss; Bridges, Terry J.; Cannon, Russell D.; Cole, Shaun; Colless, Matthew; Collins, Chris A.; Dalton, Gavin B.; Deeley, Kathryn; De Propris, Roberto; Efstathiou, George; Ellis, Richard S.; Frenk, Carlos S.; Glazebrook, Karl; Jackson, C. A.; Lahav, Ofer; Lewis, Ian; Lumsden, Stuart; Maddox, Stephen J.; Madgwick, Darren; Moody, Stephen J.; Norberg, Peder; Peacock, John A.; Peterson, Bruce A.; Price, Ian; Seaborne, Mark D.; Sutherland, William J.; Tadros, Helen; Taylor, Keith
- We present the bivariate brightness distribution (BBD) for the 2dF Galaxy Redshift Survey (2dFGRS) based on a preliminary subsample of 45 000 galaxies. The BBD is an extension of the galaxy luminosity function, incorporating surface brightness information. It allows the measurement of the local luminosity density, jB, and of the galaxy luminosity and surface brightness distributions, while accounting for surface brightness selection biases. The recovered 2dFGRS BBD shows a strong luminosity–surface brightness relation MB∝(2.4±0.51.5)μe], providing a new constraint for galaxy formation models. In terms of the number density, we find that the peak of the galaxy population lies at MB≥−16.0 mag. Within the well-defined selection limits (−24
- Publication type
- Journal article
- Monthly Notices of the Royal Astronomical Society, Vol. 324, no. 4 (Jul 2001), pp. 825-841
- Publication year
- Wiley-Blackwell Publishing
- Publisher URL
- Copyright © 2001 RAS. The accepted manuscript of the paper is reproduced here in accordance with the copyright policy of the publisher. The definitive publication is available at www.interscience.wiley.com.