The shapes of elliptic orbits and the stability of gas-dust rings in precessing galaxies

Details The shapes of elliptic orbits and the stability of gas-dust rings in precessing galaxies The shapes of elliptic orbits and the stability of gas-dust rings in precessing galaxies

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988kfnt....4...66a&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 4, Nov.-Dec. 1988, p. 66-72. In Russian.

Other

Cosmic Dust, Elliptical Orbits, Galactic Structure, Interstellar Gas, Disk Galaxies, Oblate Spheroids, Precession

Scientific paper

The properties of elliptic orbits in the gravitational field of a precessing galaxy represented by a homogeneous oblate spheroid are studied. Three possible types of orbits with different inclinations to the equatorial plane of the galaxy are found. One of these orbit types is stable relative to dissipation factors (secular stability) while the two others are unstable. A stable orbit may exist in the precessing galaxy as a stationary gas-dust ring or as a disk that is inclined to the equatorial plane of the galaxy.

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