Relativistic gravitational collapse in comoving coordinates: The post-quasistatic approximation

Details Relativistic gravitational collapse in comoving coordinates: The post-quasistatic approximation Relativistic gravitational collapse in comoving coordinates: The post-quasistatic approximation

2010-10-20

arxiv.org/abs/1010.4087v3

Int.J.Mod.Phys.D20:1265-1288,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages, 11 figures; updated version to appear in Int. J. Modern Phys. D

Scientific paper

10.1142/S0218271811019426

A general iterative method proposed some years ago for the description of relativistic collapse, is presented here in comoving coordinates. For doing that we redefine the basic concepts required for the implementation of the method for comoving coordinates. In particular the definition of the post-quasistatic approximation in comoving coordinates is given. We write the field equations, the boundary conditions and a set of ordinary differential equations (the surface equations) which play a fundamental role in the algorithm. As an illustration of the method, we show how to build up a model inspired in the well known Schwarzschild interior solution. Both, the adiabatic and non adiabatic, cases are considered.

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