A Structure of Disk Galaxy with a Massive Ellipsoidal Halo

Details A Structure of Disk Galaxy with a Massive Ellipsoidal Halo A Structure of Disk Galaxy with a Massive Ellipsoidal Halo

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982pthph..68.1941t&link_type=abstract

Progress of Theoretical Physics, Vol. 68, No. 6, pp. 1941-1948

Physics

Scientific paper

A model is proposed for the disk galaxy which is located in the midst of a massive halo in a shape of the Jacobi ellipsoid. It is clarified that in a stellar trajectory there are two eigenfrequencies splitted out due to a non-axisymmetry of gravitational potential of the halo. Using an exact solution for the stellar motion, a distribution function is constructed to derive the rotation curve in the disk. The result is comparable with the observations.

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