Models of axisymmetric galaxies

Details Models of axisymmetric galaxies Models of axisymmetric galaxies

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...305...14b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 305, June 1, 1986, p. 14-27.

Astronomy and Astrophysics

Astrophysics

26

Astronomical Models, Elliptical Galaxies, Galactic Structure, Axisymmetric Bodies, Density Distribution, Distribution Functions, Galactic Rotation, Gravitational Fields, Mass Distribution, Oblate Spheroids, Stellar Motions, Velocity Distribution

Scientific paper

A method for the construction of models of axisymmetric galaxies is developed. In this formulation, a mass density and the corresponding gravitational potential are given, and a numerical solution for the distribution function is determined. The method applies to potentials in which the stellar motions admit of three isolating integrals. The method is illustrated with the construction of the 'perfect' oblate-spheroidal galaxy. The solution for the distribution function is not unique, and various solutions are determined. Rotation curves and velocity ellipsoids are presented. It is found that the models have a peak-rotational velocity that is consistent with those of observed elliptical galaxies.

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