Self-gravitating spheres of anisotropic fluid in geodesic flow

Details Self-gravitating spheres of anisotropic fluid in geodesic flow Self-gravitating spheres of anisotropic fluid in geodesic flow

2011-03-27

arxiv.org/abs/1103.5190v1

Int.J.Mod.Phys.D 20 (2011) 319

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

21 pages

Scientific paper

The fluid models mentioned in the title are classified. All characteristics of the fluid are expressed through a master potential, satisfying an ordinary second order differential equation. Different constraints are imposed on this core of relations, finding new solutions and deriving the classical results for perfect fluids and dust as particular cases. Many uncharged and charged anisotropic solutions, all conformally flat and some uniform density solutions are found. A number of solutions with linear equation among the two pressures are derived, including the case of vanishing tangential pressure.

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