The influence of halo nonuniformity on the stability of the bar-like mode in Maclaurin stellar disks

Details The influence of halo nonuniformity on the stability of the bar-like mode in Maclaurin stellar disks The influence of halo nonuniformity on the stability of the bar-like mode in Maclaurin stellar disks

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986azh....63..635c&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 63, July-Aug. 1986, p. 635-642. In Russian.

Astronomy and Astrophysics

Astronomy

Barred Galaxies, Disk Galaxies, Galactic Evolution, Gravitational Effects, Halos, Star Distribution, Perturbation, Systems Stability

Scientific paper

The stability of infinitely thin stellar disks with uniform rotation and quadratic gravitational potential with respect to bar-like perturbations is analyzed. The disks are situated in the external gravitational field of a spherical halo with nonuniform density distribution. It is found that a uniform halo can stabilize the bar-like perturbations more effectively than a centrally condensed halo.

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