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
Collections
Source
Proceedings of International Astronomical Union Symposium 245
Type
Conference paper
Book Title
Entity type
Access Statement
License Rights
Restricted until
2037-12-31
Downloads
File
Description