Rotationally symmetric oscillations of a gravitating ellipsoid of revolution having a corona
Abstract
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.
- Publication:
-
Soviet Astronomy
- Pub Date:
- February 1978
- Bibcode:
- 1978SvA....22...21N
- Keywords:
-
- Celestial Mechanics;
- Coronas;
- Ellipsoids;
- Galactic Rotation;
- Galactic Structure;
- Gravitational Fields;
- Bodies Of Revolution;
- Eccentricity;
- Hydrodynamics;
- Linear Equations;
- Oscillations;
- Astrophysics