Luminosity and Stellar Mass Functions from the 6dF Galaxy Survey

Details Luminosity and Stellar Mass Functions from the 6dF Galaxy Survey Luminosity and Stellar Mass Functions from the 6dF Galaxy Survey

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..379..126c&link_type=abstract

Cosmic Frontiers ASP Conference Series, Vol. 379, proceedings of the conference held 31 July-4 August 2006 at Durham University,

Computer Science

1

Scientific paper

The completed 6dF Galaxy Survey includes redshifts for over 124,000 galaxies. We present luminosity functions in optical and near-infrared passbands that span a range of 10^4 in luminosity. These luminosity functions show systematic deviations from the Schechter form. The corresponding luminosity densities in the optical and near-infrared are consistent with an old stellar population and a moderately declining star formation rate. Stellar mass functions, derived from the K band luminosities and simple stellar population models selected by b_J-r_F colour, lead to an estimate of the present-day stellar mass density of ρ_* = (5.00 ± 0.11) × 10^8 h M_&sun; Mpc^{-3}, corresponding to Ω_* h = (1.80 ± 0.04) × 10^{-3}.

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