Numerical treatment of the hyperboloidal initial value problem for the vacuum Einstein equations. II. The evolution equations

Details Numerical treatment of the hyperboloidal initial value problem for the vacuum Einstein equations. II. The evolution equations Numerical treatment of the hyperboloidal initial value problem for the vacuum Einstein equations. II. The evolution equations

1997-12-11

arxiv.org/abs/gr-qc/9712052v1

Phys.Rev. D58 (1998) 064003

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

30 pages, 13 figures, LaTeX2e

Scientific paper

10.1103/PhysRevD.58.064003

This is the second in a series of articles on the numerical solution of Friedrich's conformal field equations for Einstein's theory of gravity. We will discuss in this paper the numerical methods used to solve the system of evolution equations obtained from the conformal field equations. In particular we discuss in detail the choice of gauge source functions and the treatment of the boundaries. Of particular importance is the process of ``radiation extraction'' which can be performed in a straightforward way in the present formalism.

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