Dark Matter in Globular Clusters

Details Dark Matter in Globular Clusters Dark Matter in Globular Clusters

1995-11-24

arxiv.org/abs/astro-ph/9511115v1

IAU Symp. 174 (1996) 303

Astronomy and Astrophysics

Astrophysics

10 pages in uuencoded compressed postscript; to appear in P. Hut and J. Makino, eds, Dynamical Evolution of Star Clusters - Co

Scientific paper

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.

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