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Disks in Early-Type Dwarf Galaxies

Published online by Cambridge University Press:  01 August 2006

T. Lisker ,
E. K. Grebel  and
B. Binggeli
T. Lisker
Affiliation:
Astronomical Institute, Dept. of Physics and Astronomy, University of Basel, Switzerland
E. K. Grebel
Affiliation:
Astronomical Institute, Dept. of Physics and Astronomy, University of Basel, Switzerland
B. Binggeli
Affiliation:
Astronomical Institute, Dept. of Physics and Astronomy, University of Basel, Switzerland
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Abstract

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We identify disk features (spiral arms, bars, or edge-on disks) in a significant fraction of Virgo cluster early-type dwarfs. These galaxies are disk-shaped and are an unrelaxed cluster population that possibly formed out of infalling progenitors. Some display spiral arms with grand design features that cannot be the mere remainders of potential late-type spiral progenitors.

Keywords

Galaxies: dwarfgalaxies: structuregalaxies: clusters: individual (Virgo)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 118
Copyright
Copyright © International Astronomical Union 2007

References

Adelman-McCarthy, J.K., Agüeros, M.A., Allam, S.S. 2006, ApJS 162, 38.CrossRefGoogle Scholar
Binggeli, B., Sandage, A. & Tammann, G.A. 1985, AJ 90, 1681.CrossRefGoogle Scholar
Lisker, T., Grebel, E.K., & Binggeli, B. 2006, AJ 132, 497.CrossRefGoogle Scholar