Exact model for a gaseous regular bouncing sphere in general relativity
An exact model for a relativistic gaseous sphere (i.e., one whose density rho vanishes at the outer boundary of the nonstatic sphere together with the pressure rho) is given. The model has a bounce: The collapsing sphere comes momentarily to rest when the boundary is still outside the Schwarzschild radius of the matter sphere, then there is a macroscopic bounce, and the matter of the expanding sphere spreads all over the universe. This bouncing solution of Einstein's field equations is physically valid at any moment, i.e., the pressure and the density are positive inside the fluid sphere, and there respective gradients are negative. The mass function is positive, and the circumference is an increasing function of radial coordinate. This solution may represent an easily surveyable model for a supernova explosion where the explosion is so violent that no remnant whatsoever is left.
- Research Organization:
- Nordita, Copenhagen (Denmark)
- OSTI ID:
- 5378450
- Journal Information:
- Int. J. Theor. Phys.; (United States), Journal Name: Int. J. Theor. Phys.; (United States) Vol. 26:9; ISSN IJTPB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATMOSPHERES
BLACK HOLES
COSMIC GASES
DENSITY
EINSTEIN FIELD EQUATIONS
EQUATIONS
ERUPTIVE VARIABLE STARS
EXPLOSIONS
FIELD EQUATIONS
FIELD THEORIES
FLUIDS
GASES
GENERAL RELATIVITY THEORY
GRAVITATIONAL COLLAPSE
MATHEMATICAL MODELS
METRICS
PHYSICAL PROPERTIES
PRESSURE GRADIENTS
SCHWARZSCHILD RADIUS
STAR EVOLUTION
STAR MODELS
STARS
STELLAR ATMOSPHERES
STELLAR RADIATION
SUPERNOVAE
VARIABLE STARS