Astronomy and Astrophysics, volume 367, 788-800 (2001/3-1)
The luminosity function of field galaxies and its evolution since (z=1).
FRIED J.W., VON KUHLMANN B., MEISENHEIMER K., RIX H.-W., WOLF C., HIPPELEIN H.H., KUEMMEL M., PHLEPS S., ROESER H.-J., THIERING I. and MAIER C.
Abstract (from CDS):
We present the B-band luminosity function and comoving space and luminosity densities for a sample of 2779 I-band selected field galaxies based on multi-color data from the CADIS survey. The sample is complete down to I815=22 without correction and with completeness correction extends to I815=23.0. By means of a new multi-color analysis the objects are classified according to their spectral energy distributions (SEDs) and their redshifts are determined with typical errors of δz ≤0.03. We have split our sample into four redshift bins between z=0.1 and z=1.04 and into three SED bins E-Sa, Sa-Sc and starbursting (emission line) galaxies. The evolution of the luminosity function is clearly differential with SED. The normalization φ* of the luminosity function for the E-Sa galaxies decreases towards higher redshift, and we find evidence that the comoving galaxy space density decreases with redshift as well. In contrast, we find φ* and the comoving space density increasing with redshift for the Sa-Sc galaxies. For the starburst galaxies we find a steepening of the luminosity function at the faint end and their comoving space density increases with redshift.
galaxies: evolution - galaxies: luminosity function, mass function