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

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.

arXiv commentTo appear in General Relativity and Gravitation

References in corpus (4)

• On the role of density inhomogeneity and local anisotropy in the fate of spherical collapse
• Thermal Conduction in Systems out of Hydrostatic Equilibrium
• Dissipative fluids out of hydrostatic equilibrium
• On the Critical Behaviour of Heat Conducting Sphere out of Hydrostatic Equilibrium

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• Gravitational Binding Energy in Charged Cylindrical Symmetry
• On the dual interpretation of zero-curvature Friedmann-Robertson-Walker models
• Measuring the strength of dissipative inflation