The origin of ultra-compact dwarf galaxies in the Virgo cluster

The origin of ultra-compact dwarf galaxies in the Virgo cluster

We present the internal velocity dispersions and spectral line indices for six Virgo ultra-compact dwarf (UCD) galaxies obtained from spectroscopy with the Keck II 10-m telescope. We use these results: 1) to compare the Virgo UCDS with the Fornax UCD population; 2) to compare UCDs with globular clus...

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Veröffentlicht in:Proceedings of the International Astronomical Union 2005-03, Vol.1 (C198), p.413-415
Hauptverfasser: Evstigneeva, E.A., Gregg, M.D., Drinkwater, M.J.
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creator Evstigneeva, E.A.
Gregg, M.D.
Drinkwater, M.J.
description We present the internal velocity dispersions and spectral line indices for six Virgo ultra-compact dwarf (UCD) galaxies obtained from spectroscopy with the Keck II 10-m telescope. We use these results: 1) to compare the Virgo UCDS with the Fornax UCD population; 2) to compare UCDs with globular clusters (GCs) to determine if UCDs and the most luminous GCs are the same or distinct systems; 3) to further test the nucleated dwarf elliptical (dE,N) stripping hypothesis for UCD formation.
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Contributed Papers
title The origin of ultra-compact dwarf galaxies in the Virgo cluster
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