Physical Classification of Galaxies with MOPED/VESPA

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Title: Physical Classification of Galaxies with MOPED/VESPA
Authors: Jimenez, R
Heavens, AF
Panter, B
Tojeiro, R
Item 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.
Issue Date: 5-Dec-2008
Date of Acceptance: 1-Jan-2008
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.
Conference Name: Classification and Discovery in Large Astronomical Survey
Keywords: astro-ph
Notes: Invited talk at the class2008 meeting in Ringberg
Publication Status: Published
Start Date: 2008-10-14
Finish Date: 2008-10-17
Appears in Collections:Physics
Faculty of Natural Sciences

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