• DOI:10.1046/j.1365-8711.2002.05831.x
• Corpus ID: 33426161

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

@article{Norberg2002The2G,
  title={The 2dF Galaxy Redshift Survey: The bJ-band galaxy luminosity function and survey selection function},
  author={P. Norberg and Shaun Cole and Carlton M Baugh and Carlos S. Frenk and Ivan K. Baldry and J. Bland-Hawthorn and Terry James Bridges and Russell D. Cannon and Matthew Colless and Chris A. Collins and Warrick J. Couch and N J G Cross and Gavin B. Dalton and Roberto de Propris and Simon P. Driver and George P. Efstathiou and Richard S. Ellis 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 John A Peacock and Bruce A. Peterson and William J. Sutherland and Keith Taylor},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2002},
  volume={336},
  pages={907-931}
}

• P. Norberg, S. Cole, +25 authors K. Taylor
• Published 1 November 2001
• Physics
• Monthly Notices of the Royal Astronomical Society

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 distri- bution of magnitude measurement errors and small corrections for incompleteness in the galaxy catalogue. Throughout the interval −16.5 > MbJ − 5 log10 h > −22, the luminosity function is accurately described by a Schechter function with MJ − 5 log10 h =− 19.66 ± 0.07, α = −1.21 ± 0.03 and � � = (1.61 ± 0.08) × 10 −2 h 3 Mpc −3 , giving an integrated luminosity den- sity of ρL = (1.82 ± 0.17) × 10 8 h LMpc −3 (assuming an � 0 = 0.3, 0 = 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 ap- propriate 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 ap- parent 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.