On the stability of gravitating liquid bodies containing small solid cores

Details On the stability of gravitating liquid bodies containing small solid cores On the stability of gravitating liquid bodies containing small solid cores

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982azh....59..794g&link_type=abstract

(Astronomicheskii Zhurnal, vol. 59, July-Aug. 1982, p. 794-801) Soviet Astronomy (ISSN 0038-5301), vol. 26, July-Aug. 1982, p. 4

Astronomy and Astrophysics

Astronomy

Earth Planetary Structure, Gravitation Theory, Planetary Cores, Planetary Gravitation, Dynamic Stability, Elastic Bodies, Shear Stress

Scientific paper

The problem of the radial stability of a gravitating body consisting of a solid core and a liquid envelope is investigated. In this study it is assumed that the solid core and the liquid envelope are different phases of a one-component, isotropic, elastic substance, and a phase transition with slippage can occur at the boundary between the two phases. The Ramsey-Lighthill (1950) results on the instability of gravitating two-phase bodies containing small cores are generalized to the case when the core is an isotropic elastic body.

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