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Probing Stellar Mass Assembly in the Virgo Cluster

Published online by Cambridge University Press:  13 April 2010

Joel C. Roediger ,
Stéphane Courteau ,
Michael McDonald  and
Lauren A. MacArthur
Joel C. Roediger
Affiliation:
Department of Physics, Engineering Physics & Astronomy, Queen's University, 99 University Avenue, Kingston, Ontario, K7L 3N6Canada email: [email protected]; [email protected]
Stéphane Courteau
Affiliation:
Department of Physics, Engineering Physics & Astronomy, Queen's University, 99 University Avenue, Kingston, Ontario, K7L 3N6Canada email: [email protected]; [email protected]
Michael McDonald
Affiliation:
Department of Astronomy, University of Maryland, College Park, MD, 20742-2421U.S.A.
Lauren A. MacArthur
Affiliation:
NRC Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, B.C., V9E 2E7Canada
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Abstract

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We have examined in detail both the resolved and integrated stellar content of a representative sample of galaxies in the Virgo cluster to constrain plausible formation/evolution scenarios for them. Systematic variations in age and metallicity gradients along the Hubble sequence are found such that the gradients become more negative for later types. Combined with correlations of the above stellar properties with both structure and environment, these data highlight the significance of merging in the assembly of massive spheroids and environmental phenomena (gas removal/interactions) in the evolution of disks and dwarf systems. Our data also provide useful perspectives on a number of important topics in the recent literature.

Keywords

clusters: individual (Virgo)galaxies: evolutionformationgeneralstellar content
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S262: Stellar Populations – Planning for the Next Decade , August 2009 , pp. 420 - 421
Copyright
Copyright © International Astronomical Union 2010

References

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McDonald, M., et al. (in prep.)Google Scholar
McDonald, M., et al. 2009, MNRAS, 394, 2022CrossRefGoogle Scholar