Spectral analysis of the Stromlo-APM Survey - II. Galaxy luminosity function and clustering by spectral type

被引：41

作者：

Loveday, J

Tresse, L

Maddox, S

机构：

[1] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[2] CNR, Ist Radioastron, I-40129 Bologna, Italy

[3] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[4] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1999年 / 310卷 / 01期

关键词：

surveys; galaxies : clusters : general; galaxies : luminosity function; mass function; cosmology : observations;

D O I：

10.1046/j.1365-8711.1999.02820.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the luminosity function and clustering properties of subsamples of local galaxies selected from the Stromlo-APM Survey by the rest-frame equivalent widths of their H alpha and [O II] emission lines. The b(J) luminosity function of star-forming galaxies has a significantly steeper faint-end slope than that for quiescent galaxies: the majority of sub-L* galaxies are currently undergoing significant star formation. Emission-line galaxies are less strongly clustered, both amongst themselves and with the general galaxy population, than are quiescent galaxies. Thus as well as being less luminous, star-forming galaxies also inhabit lower density regions of the Universe than quiescent galaxies.

引用

收藏

页码：281 / 288

页数：8

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