Physical Classification of Galaxies with MOPED/VESPA
File(s)
Published version
Accepted version
Author(s)
Jimenez, R
Heavens, AF
Panter, B
Tojeiro, R
Type
Conference Paper
Abstract
The availability of high-quality spectra for a large number of galaxies in
the SDSS survey allows for a more sophisticated extraction of information about
their stellar populations than, e.g., the luminosity weighted age. Indeed,
sophisticated and robust techniques to fully analyze galaxy spectra have now
reached enough maturity as to trust their results and findings. By
reconstructing the star formation and metallicity history of galaxies from the
SDSS fossil record and analyzing how it relates to its environment, we have
learned how to classify galaxies: to first order the evolution of a galaxy is
determined by its present stellar mass, which in turn seems to be governed by
the merger rate of dark halos.
the SDSS survey allows for a more sophisticated extraction of information about
their stellar populations than, e.g., the luminosity weighted age. Indeed,
sophisticated and robust techniques to fully analyze galaxy spectra have now
reached enough maturity as to trust their results and findings. By
reconstructing the star formation and metallicity history of galaxies from the
SDSS fossil record and analyzing how it relates to its environment, we have
learned how to classify galaxies: to first order the evolution of a galaxy is
determined by its present stellar mass, which in turn seems to be governed by
the merger rate of dark halos.
Date Issued
2008-12-05
Date Acceptance
2008-01-01
Citation
AIP Conference Proceedings, 2008, 1082
ISBN
978-0-7354-0613-1
ISSN
1551-7616
Publisher
American Institute of Physics (AIP)
Journal / Book Title
AIP Conference Proceedings
Volume
1082
Copyright Statement
© 2008 American Institute of Physics.
Identifier
http://arxiv.org/abs/0810.3505v1
Source
Classification and Discovery in Large Astronomical Survey
Subjects
astro-ph
astro-ph
Notes
Invited talk at the class2008 meeting in Ringberg
Publication Status
Published
Start Date
2008-10-14
Finish Date
2008-10-17