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

1998/10/06 by L. Herrera, A. Di Prisco · 1 citation
Engineering · Physics and Astronomy · #Fluid dynamics and aerodynamics studies #Material Science and Thermodynamics #Thermoelastic and Magnetoelastic Phenomena #astro-ph #gr-qc

paper · pdf · doi:10.1023/a:1026684409560

published as Gen.Rel.Grav.31:301-313,1999 · To appear in General Relativity and Gravitation

arxiv created 1998/10/06 · openalex publication_date 1999/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

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.

Citations

• Thermodynamics of nonstationary and transient effects in a relativistic gas
• Thermal conduction in systems out of hydrostatic equilibrium
• On the Critical Behaviour of Heat Conducting Sphere out of Hydrostatic Equilibrium
• Relativistic Equations for Adiabatic, Spherically Symmetric Gravitational Collapse
• Nonstationary irreversible thermodynamics: A causal relativistic theory
• The Thermodynamics of Irreversible Processes. III. Relativistic Theory of the Simple Fluid

Cited by

• On the dual interpretation of zero-curvature Friedmann-Robertson-Walker models