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The 2dF Galaxy Redshift Survey: the b_J-band galaxy luminosity function and survey selection function

Norberg, Peder and Cole, Shaun and Baugh, Carlton M. and Frenk, Carlos S. and Baldry, Ivan and Bland-Hawthorn, Joss and Bridges, Terry and Cannon, Russell and Colless, Matthew and Collins, Chris and Couch, Warrick and Cross, Nicholas J. G. and Dalton, Gavin and De Propris, Roberto and Driver, Simon P. and Efstathiou, George and Ellis, Richard S. and Glazebrook, Karl and Jackson, Carole and Lahav, Ofer and Lewis, Ian and Lumsden, Stuart and Maddox, Steve and Madgwick, Darren and Peacock, John A. and Peterson, Bruce A. and Sutherland, Will and Taylor, Keith (2002) The 2dF Galaxy Redshift Survey: the b_J-band galaxy luminosity function and survey selection function. Monthly Notices of the Royal Astronomical Society, 336 (3). pp. 907-931. ISSN 0035-8711.

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We use more than 110 500 galaxies from the 2dF Galaxy Redshift Survey (2dFGRS) to estimate the bⱼ-band galaxy luminosity function at redshift z = 0, taking account of evolution, the distribution of magnitude measurement errors and small corrections for incompleteness in the galaxy catalogue. Throughout the interval −16.5 > M_(bJ) −5 log₁₀ h > −22, the luminosity function is accurately described by a Schechter function with M*_bJ −5 log₁₀ h = −19.66±0.07, α = −1.21±0.03 and Φ* =(1.61±0.08)×10-² h³ Mpc⁻³, giving an integrated luminosity density of ρL =(1.82±0.17)×10⁸ h L_⊙ Mpc⁻³ (assuming an Ω₀ = 0.3, Λ₀ = 0.7 cosmology). The quoted errors have contributions from the accuracy of the photometric zero-point, from large-scale structure in the galaxy distribution and, importantly, from the uncertainty in the appropriate evolutionary corrections. Our luminosity function is in excellent agreement with, but has much smaller statistical errors than, an estimate from the Sloan Digital Sky Survey (SDSS) data when the SDSS data are accurately translated to the bⱼ band and the luminosity functions are normalized in the same way. We use the luminosity function, along with maps describing the redshift completeness of the current 2dFGRS catalogue, and its weak dependence on apparent magnitude, to define a complete description of the 2dFGRS selection function. Details and tests of the calibration of the 2dFGRS photometric parent catalogue are also presented.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Norberg, Peder0000-0002-5875-0440
Baugh, Carlton M.0000-0002-9935-9755
Bland-Hawthorn, Joss0000-0001-7516-4016
Colless, Matthew0000-0001-9552-8075
Ellis, Richard S.0000-0001-7782-7071
Additional Information:© 2002 RAS. Accepted 2002 July 1. Received 2002 May 7; in original form 2001 October 31. The data used here were obtained with the 2° field facility on the 3.9-m Anglo-Australian Telescope (AAT). We thank all those involved in the smooth running and continued success of the 2dF and the AAT. We thank Valerie de Lapparent for kindly making available the ESO-Sculptor photometry. We thank the anonymous referee for many useful comments.
Subject Keywords:catalogues, surveys, galaxies: distances and redshifts, galaxies: luminosity function, mass function, large-scale structure of Universe
Issue or Number:3
Record Number:CaltechAUTHORS:20200708-151732795
Persistent URL:
Official Citation:Peder Norberg, Shaun Cole, Carlton M. Baugh, Carlos S. Frenk, Ivan Baldry, Joss Bland-Hawthorn, Terry Bridges, Russell Cannon, Matthew Colless, Chris Collins, Warrick Couch, Nicholas J. G. Cross, Gavin Dalton, Roberto De Propris, Simon P. Driver, George Efstathiou, Richard S. Ellis, Karl Glazebrook, Carole Jackson, Ofer Lahav, Ian Lewis, Stuart Lumsden, Steve Maddox, Darren Madgwick, John A. Peacock, Bruce A. Peterson, Will Sutherland, Keith Taylor, (The 2dFGRS Team), The 2dF Galaxy Redshift Survey: the bJ-band galaxy luminosity function and survey selection function, Monthly Notices of the Royal Astronomical Society, Volume 336, Issue 3, November 2002, Pages 907–931,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104285
Deposited By: Rebecca Minjarez
Deposited On:09 Jul 2020 15:24
Last Modified:09 Jul 2020 15:24

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