The 6dF Galaxy Survey: a low-redshift benchmark for bulge-dominated galaxies

Date

2008

Authors

Colless, Matthew
Jones, Heath
Proctor, Robert, N
Harrison, Craig
Campbell, Lachlan
Lah, Philip

Journal Title

Journal ISSN

Volume Title

Publisher

Cambridge University Press

Abstract

The 6dF Galaxy Survey provides a very large sample of galaxies with reliable measurements of Lick line indices and velocity dispersions. This sample can be used to explore the correlations between mass and stellar population parameters such as age, metallicity and [/Fe]. Preliminary results from such an analysis are presented here, and show that age and metallicity are significantly anti-correlated for both passive and star-forming galaxies. Passive galaxies have strong correlations between mass and metallicity and between age and -element over-abundance, which combine to produce a downsizing relation between age and mass. For old passive galaxies, the different trends of M/L with mass and luminosity in different passbands result from the differential effect of the massmetallicity relation on the luminosities in each passband. Future work with this sample will examine the Fundamental Plane of bulge-dominated galaxies and the influence of environment on relations between stellar population parameters and mass.

Description

Keywords

Keywords: Galaxies: abundances; Galaxies: bulges; Galaxies: stellar content

Citation

Source

Proceedings of International Astronomical Union Symposium 245

Type

Conference paper

Book Title

Entity type

Access Statement

License Rights

Restricted until

2037-12-31