Heat flow and dynamical instability in spherical collapse

Details Heat flow and dynamical instability in spherical collapse Heat flow and dynamical instability in spherical collapse

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.239...91c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 239, July 1, 1989, p. 91-97.

Astronomy and Astrophysics

Astronomy

11

Astronomical Models, Dynamic Stability, Gravitational Collapse, Heat Transfer, Conductive Heat Transfer, Einstein Equations, Relativistic Effects

Scientific paper

The effects of heat flow on the dynamical instability for nonadiabatic spherical collapse are studied, using a model considered by Herrera et al. (1989). It is shown that the unstable range of the ratio Gamma of the specific heats at the Newtonian limit, is increased by the contribution due to dissipation. At the post-Newtonian limit, the range is increased by the relativistic correction due to the background configuration and diminished by that due to dissipation.

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