The luminosity function of field galaxies and its evolution since z=1

被引：38

作者：

Fried, JW ^{[1
]}

von Kuhlmann, B ^{[1
]}

Meisenheimer, K ^{[1
]}

Rix, HW ^{[1
]}

Wolf, C ^{[1
]}

Hippelein, HH ^{[1
]}

Kümmel, M ^{[1
]}

Phleps, S ^{[1
]}

Röser, HJ ^{[1
]}

Thierring, I ^{[1
]}

Maier, C ^{[1
]}

机构：

[1] Max Planck Inst Astron, D-69117 Heidelberg, Germany

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 367卷 / 03期

关键词：

galaxies : evolution; galaxies : luminosity function; mass function;

D O I：

10.1051/0004-6361:20000466

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the B-band luminosity function and comoving space and luminosity densities for a sample of 2779 I-band selected field galaxies based oil multi-color data from the CADIS survey. The sample is complete down to I-185 = 22 without correction and with completeness correction extends to I-815 = 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 deltaz less than or equal to 0.03. We have split our sample into four redshift bins between z = 0.1 and z = 1.03 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 phi* 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 phi* and the comoving space density increasing with redshift fur the Sa-Se galaxies. For the starburst galaxies we find a steeping of the luminosity function at the faint end and their comoving space density increases with redshift.

引用

页码：788 / 800

页数：13

共 30 条

[1] Evolution of the Hubble sequence in hierarchical models for galaxy formation [J].