Towards a physical model for galactic rotation curves

Cowsik, Ramanath ; Ghosh, Pranab (1986) Towards a physical model for galactic rotation curves Journal of Astrophysics and Astronomy, 7 (1). pp. 17-28. ISSN 0250-6335

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Extensive and meticulous observations of the rotation curves of galaxies show that they are either flat or gently going up, but rarely decreasing, at large galactocentric distances. Here we show that the gravitational potential which would lead to such rotation curves arises naturally when the visible matter modelled as a collisionless Maxwellian gas is embedded in a dark halo of collisionless particles with a much higher dispersion in velocities.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Galaxies; Rotation Curve-galaxies; Dark Matter-neutrino; Mass
ID Code:20654
Deposited On:20 Nov 2010 13:47
Last Modified:17 May 2016 04:56

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