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Title:
Formation of ω Centauri from an Ancient Nucleated Dwarf Galaxy
Authors:
Bekki, Kenji; Freeman, K. C.
Publication:
Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 July 2003]. Edited by O. Engvold. San Francisco, CA: Astronomical Society of the Pacific, ISBN 1-58381-189-3. XXIX + 1085 pp., 2005, p.196
Publication Date:
01/2005
Origin:
ARI; ADS
Bibliographic Code:
2005HiA....13..196B

Abstract

We present the first self-consistent dynamical model in which the Galactic giant globular cluster omegaCen is formed from an ancient nucleated dwarf galaxy interacting with the first generation of the Galactic thin disk in a retrograde manner with respect to the Galactic rotation. Our numerical simulations demonstrate that during merging the stellar envelope of the nucleated dwarf is nearly completely stripped whereas the nucleus can survive from the stripping. The developed naked nucleus is orbiting the Galaxy and can be identified as the giant globular cluster omegaCen. Based on these results we discuss the stellar
populations of the naked nucleus (i.e. omegaCen).
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Physics
arXiv e-prints