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Galaxy Populations and Evolution in Clusters IV Deep H 1 Observations of Dwarf Elliptical Galaxies in the Virgo ClusterIn this paper we present deep Arecibo H I and WIYN optical observations of Virgo Cluster dwarf elliptical galaxies. Based on this data we argue that a significant fraction of low-mass galaxies in the Virgo Cluster recently underwent evolution. Our new observations consist of H I 21 cm line observations for 22 classified dE galaxies with optical radial velocities consistent with membership in the Virgo Cluster. Cluster members VCC 390 and VCC 1713 are detected with H 1 masses M H1= 6 x 10 sup 7 and 8 x 10 sup 7 M , respectively, while MH I values in the remaining 20 dE galaxies have upper limits as low as about 5 x 1O sup 5 M. We combine our results with those for 26 other Virgo Cluster dE galaxies with H 1 observations in the literature, seven of which have H I detection claims.
Document ID
20040142306
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Conselice, Christopher J.
(California Inst. of Tech. Pasadena, CA, United States)
ONeil, Karen
(Arecibo Ionospheric Observatory Arecibo, Puerto Rico)
Gallagher, John S.
(Wisconsin Univ. Madison, WI, United States)
Wyse, Rosemary F. G.
(Johns Hopkins Univ. Baltimore, MD, United States)
Date Acquired
August 22, 2013
Publication Date
July 1, 2003
Publication Information
Publication: The Astrophysical Journal
Publisher: American Astronomical Society
Volume: 591
Subject Category
Astronomy
Funding Number(s)
CONTRACT_GRANT: NSF-AST-98-03018
CONTRACT_GRANT: NSF-AST-98-04706
Distribution Limits
Public
Copyright
Other

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