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The Active Gravitational Mass of a Heat Conducting Sphere Out of Hydrostatic Equilibrium

L. Herrera·A. Di Prisco
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Abstract

We obtain an expression for the active gravitational mass of a relativistic heat conducting fluid, just after its departure from hydrostatic equilibrium, on a time scale of the order of relaxation time. It is shown that an increase of a characteristic parameter leads to larger (smaller) values of active gravitational mass of collapsing (expanding) spheres, enhacing thereby the instability of the system.

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L. Herrera, A. Di Prisco. 1998-10-06. The Active Gravitational Mass of a Heat Conducting Sphere Out of Hydrostatic Equilibrium. https://doi.org/10.1023/a%3A1026684409560

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