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The 2dF galaxy redshift survey: near-infrared galaxy luminosity functions

Cole, Shaun and Norberg, Peder and Baugh, Carlton M. and Frenk, Carlos S. and Bland-Hawthorn, Joss and Bridges, Terry and Cannon, Russell and Colless, Matthew and Collins, Chris and Couch, Warrick and Cross, Nicholas 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 (2001) The 2dF galaxy redshift survey: near-infrared galaxy luminosity functions. Monthly Notices of the Royal Astronomical Society, 326 (1). pp. 255-273. ISSN 0035-8711.

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We combine the Two Micron All Sky Survey (2MASS) Extended Source Catalogue and the 2dF Galaxy Redshift Survey to produce an infrared selected galaxy catalogue with 17 173 measured redshifts. We use this extensive data set to estimate the galaxy luminosity functions in the J- and K_S-bands. The luminosity functions are fairly well fitted by Schechter functions with parameters M_J*−5 log h = −22.36±0.02, α_J* = −0.93±0.04, Φ_J* = 0.0104±0.0016 h³ Mpc⁻³ in the J-band and MK_S*−5 log h = −23.44±0.03, αK_S = −0.96±0.05, ΦK_S* = 0.0108±0.0016 h³ Mpc⁻³ in the K_S-band (2MASS Kron magnitudes). These parameters are derived assuming a cosmological model with Ω₀ = 0.3 and Λ₀ = 0.7. With data sets of this size, systematic rather than random errors are the dominant source of uncertainty in the determination of the luminosity function. We carry out a careful investigation of possible systematic effects in our data. The surface brightness distribution of the sample shows no evidence that significant numbers of low surface brightness or compact galaxies are missed by the survey. We estimate the present-day distributions of b_J — K_S and J — K_S colours as a function of the absolute magnitude and use models of the galaxy stellar populations, constrained by the observed optical and infrared colours, to infer the galaxy stellar mass function. Integrated over all galaxy masses, this yields a total mass fraction in stars (in units of the critical mass density) of Ω_(stars)h = (1.6±0.24) × 10⁻³ for a Kennicutt initial mass function (IMF) and Ω_(stars)h = (2.9±0.43) × 10⁻³ for a Salpeter IMF. These values are consistent with those inferred from observational estimates of the total star formation history of the Universe provided that dust extinction corrections are modest.

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
Alternate Title:The 2dF Galaxy Redshift Survey: Infrared Galaxy Luminosity Functions
Additional Information:© 2001 RAS. Received: 09 April 2001. Accepted: 10 April 2001. Published: 01 September 2001. We thank John Lucey for the initial suggestion to look at the 2MASS data base. We thank Tom Jarrett for advice and detailed explanations of the 2MASS data reduction procedure. We also thank Ian Smail for help in manipulating the DSS images, Jon Loveday for supplying his luminosity function data in electronic form, and Simon White for useful suggestions. We are grateful to the VIRGO consortium for allowing us to use the Hubble Volume simulation data prior to publication. The redshift data used here were obtained with the two-degree 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. SMC acknowledges a PPARC Advanced Fellowship, IPRN an SNSF and ORS Studentship, and CSF a Leverhulme Research Fellowship. The 2dF Galaxy Redshift Survey was made possible through the dedicated efforts of the staff at the Anglo-Australian Observatory, both in creating the two-degree field facility and supporting it on the telescope. This publication makes use of data products from the Two Micron All Sky Survey (2MASS), which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation.
Funding AgencyGrant Number
Particle Physics and Astronomy Research Council (PPARC)UNSPECIFIED
Swiss National Science Foundation (SNSF)UNSPECIFIED
Overseas Research Scholarship (ORS)UNSPECIFIED
Leverhulme TrustUNSPECIFIED
Subject Keywords:surveys, galaxies: luminosity function, mass function, infrared: galaxies
Issue or Number:1
Record Number:CaltechAUTHORS:20200610-122805395
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Official Citation:Shaun Cole, Peder Norberg, Carlton M. Baugh, Carlos S. Frenk, Joss Bland-Hawthorn, Terry Bridges, Russell Cannon, Matthew Colless, Chris Collins, Warrick Couch, Nicholas 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 2dF galaxy redshift survey: near-infrared galaxy luminosity functions, Monthly Notices of the Royal Astronomical Society, Volume 326, Issue 1, September 2001, Pages 255–273,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103821
Deposited By: Rebecca Minjarez
Deposited On:08 Jul 2020 18:35
Last Modified:08 Jul 2020 21:42

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