Rotationally symmetric oscillations of a gravitating ellipsoid of revolution having a corona

Details Rotationally symmetric oscillations of a gravitating ellipsoid of revolution having a corona Rotationally symmetric oscillations of a gravitating ellipsoid of revolution having a corona

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978sva....22...21n&link_type=abstract

(Astronomicheskii Zhurnal, vol. 55, no. 1, 1978, p. 37-40.) Soviet Astronomy, vol. 22, Jan.-Feb. 1978, p. 21-23. Translation.

Astronomy and Astrophysics

Astronomy

Celestial Mechanics, Coronas, Ellipsoids, Galactic Rotation, Galactic Structure, Gravitational Fields, Bodies Of Revolution, Eccentricity, Hydrodynamics, Linear Equations, Oscillations

Scientific paper

On the basis of hydrodynamic considerations, the influence of a spherical corona on the stability of rotationally symmetric oscillations of an inner ellipsoidal subsystem is analyzed by a linear theory. A relation is derived that expresses the critical eccentricity value at which the ellipsoid becomes unstable for a given corona density. As the ambient density increases, so does the critical eccentricity. Hence the corona has a stabilizing effect on the inner body.

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