Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/43673

Download PDF (Accepted manuscript) (Adobe Acrobat PDF, -1 bytes)

Title

The 2dF Galaxy Redshift Survey: the number and luminosity density of galaxies

Author(s)

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

Abstract

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

Source

Monthly Notices of the Royal Astronomical Society, Vol. 324, no. 4 (Jul 2001), pp. 825-841

Publication year

2001

Keyword(s)

Baryon content;  Distances;  Dwarf elliptic galaxies;  Faint blue galaxies;  Galaxies;  Hubble deep field;  Local space density;  Luminosity function;  Mass function;  Nearby field;  Photometry;  Redshifts;  Rich clusters;  Spiral galaxies;  Surface brightness galaxies;  Surveys

Publisher

Wiley-Blackwell Publishing

ISSN

0035-8711

Publisher URL

http://dx.doi.org/10.1046/j.1365-8711.2001.04254.x

Copyright

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.

Full text

Peer reviewed