Substructure in dwarf spheroidals : a star cluster connection?

Wilkinson, M. I. and Kleyna, Jan and Evans, N. W. and Gilmore, G. and Grebel, E. K. and Koch, Andreas and Read, Justin and Young, R. (2005) Substructure in dwarf spheroidals : a star cluster connection? Proceedings of the International Astronomical Union, 1 (C198). pp. 240-243. ISSN 1743-9213

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Abstract

The observational evidence for kinematic substructure in Local Group dSphs is reviewed. The properties of these substructures are consistent with their being disrupted star clusters. The persistence of cold substructure argues strongly against the presence of dark matter cusps in the haloes of dSphs. A formation scenario for dSphs is described involving the merger of star clusters in the potential well of a low-mass dark matter halo.

Item Type:
Journal Article
Journal or Publication Title:
Proceedings of the International Astronomical Union
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3103
Subjects:
?? astronomy and astrophysics ??
ID Code:
83665
Deposited By:
Deposited On:
15 Dec 2016 15:06
Refereed?:
No
Published?:
Published
Last Modified:
11 Sep 2024 12:50