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2006•Proceedings of the International Astronomical UnionOpen access

Disks in Early-Type Dwarf Galaxies

T. Lisker, E. K. Grebel, B. Binggeli

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Abstract

Abstract 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.

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Abstract 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.

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Available abstract

Abstract 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.

Key concepts: Virgo Cluster, Astrophysics, Spiral (railway), Spiral galaxy, Physics, Galaxy, Cluster (spacecraft), Dwarf galaxy

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