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Intracluster Globular Clusters

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© 1995. The American Astronomical Society. All rights reserved. Printed in U.S.A.
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Article information
Author affiliations

1 Department of Astronomy and Physics, Saint Mary's University, Halifax, NS B3H 3C3, Canada

2 Dominion Astrophysical Observatory, Herzberg Institute of Astrophysics, National Research Council, 5071 West Saanich Road, Victoria, BC V8X 4M6, Canada

3 Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138

Dates

Received 8 July 1995
Accepted 28 August 1995

Citation

Michael J. West et al 1995 ApJ 453 L77

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DOI

https://doi.org/10.1086/309748

Keywords

galaxies: clusters: general; galaxies: elliptical and lenticular, cD; galaxies: star clusters; X-rays: galaxies

Journal RSS feed

1538-4357/453/2/L77

Abstract

Globular cluster populations of supergiant elliptical galaxies are known to vary widely, from extremely populous systems like that of UGC 9799, the centrally dominant galaxy in Abell 2052, to globular-cluster-poor galaxies such as NGC 5629 in Abell 2666. Here we propose that these variations point strongly to the existence of a population of globular clusters that are not bound to individual galaxies but, rather, move freely throughout the cores of clusters of galaxies. Such intracluster globular clusters may have originated as tidally stripped debris from galaxy interactions and mergers, or, alternatively, they may have formed in situ in some scenarios of globular cluster formation.

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