Gravitational pertubation of homogeneous collisionless dark matter

Padmanabhan, T. ; Vasanthi, M. M. (1985) Gravitational pertubation of homogeneous collisionless dark matter Journal of Astrophysics and Astronomy, 6 (4). pp. 247-260. ISSN 0250-6335

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The effect of a perturbing mass on a homogeneous collisionless cloud of dark matter is considered in the linear approximation. It is shown that gravitational potential can have turning points, in sharp contrast with gravitating systems of finite extent. The model offers a reasonable explanation for the observed secondary maxima in the density distribution of rich clusters. The relevance of the model to the flatness of the rotation curves of galaxies is also discussed.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Dark Matter; Collisionless-Cluster of Galaxies; Dark Matter-Galaxies; Rotation Curves
ID Code:72388
Deposited On:29 Nov 2011 05:09
Last Modified:18 May 2016 17:39

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