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Dark Matter in Globular Clusters

Published online by Cambridge University Press:  25 May 2016

Douglas C. Heggie
Affiliation:
University of Edinburgh, Department of Mathematics and Statistics, King's Buildings, Edinburgh EH9 3JZ, U.K.
Piet Hut
Affiliation:
Institute for Advanced Study, Princeton, New Jersey 08540, U.S.A.

Abstract

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We first review reasons why dark matter is an interesting issue in connection with star clusters. Next we consider to what extent the presence of dark matter is consistent with their dynamics and structure. We review various model-dependent and model-independent methods which have been applied to two well studied clusters, NGC 6397 and 47 Tuc. We suggest that about half of the mass in each object is still unobserved, possibly in the form of a mixture of low-mass stars and white dwarfs.

Type
Galactic Connection and Environmental Effect
Copyright
Copyright © Kluwer 1996 

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