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Where in the Virgo Cluster are Galaxies Stripped? Stellar Population Evolution of Stripped Spiral Galaxies in Virgo

Published online by Cambridge University Press:  01 December 2006

Hugh H. Crowl  and
Jeffrey D. P. Kenney
Hugh H. Crowl
Affiliation:
Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT, 06520, USA email: [email protected]
Jeffrey D. P. Kenney
Affiliation:
Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT, 06520, USA email: [email protected]
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Abstract

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The nearby Virgo Cluster provides an ideal laboratory to study galaxy-galaxy and galaxy-cluster interactions at a level of detail impossible at higher redshift. In Virgo, there exists a large population of spiral galaxies with mostly undisturbed stellar disks, but truncated gas disks. We present results of an observational study of several of these galaxies, utilizing optical and UV imaging, and optical spectroscopy. By combining optical spectroscopy and UV imaging, we are able to constrain the time since star formation ended in the outer disk and, therefore, constrain the time since the galaxies were stripped. Our results show that while most of the galaxies in our sample are consistent with being stripped near the cluster center, several show evidence for being stripped well outside the core, suggesting that the “reach” of the intracluster medium is greater than is suggested by simple ICM models.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S241: Stellar Populations as Building Blocks of Galaxies , December 2006 , pp. 501 - 502
Copyright
Copyright © International Astronomical Union 2007

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