Distribution of Galactic Dark Matter

Details Distribution of Galactic Dark Matter Distribution of Galactic Dark Matter

Apr 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aps..aprk20003l&link_type=abstract

American Physical Society, April Meeting, April 28 - May 1, 2001 Washington, DC Bulletin of the American Physical Society, Vol.

Physics

Scientific paper

In this paper we examine the rotational curves of two dwarf spiral galaxies, NGC 2403 and NGC 3198. The observed rotation cannot be accounted for by luminous matter alone, therefore there must be a substantial dark component. We found the dark matter in both galaxies to be distributed according to the equation rho(r) = b*r/(r^2 + x^2). Combining this with a distribution of luminous matter rho(r)= rho(o)* e^-(a*r), we produced a rotation curve that matched the observed orbital velocities to within 4%.

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