Radiation tails and boundary conditions for black hole evolutions

Details Radiation tails and boundary conditions for black hole evolutions Radiation tails and boundary conditions for black hole evolutions

2004-01-21

arxiv.org/abs/gr-qc/0401092v1

Phys.Rev. D70 (2004) 044038

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.70.044038

In numerical computations of Einstein's equations for black hole spacetimes, it will be necessary to use approximate boundary conditions at a finite distance from the holes. We point out here that ``tails,'' the inverse power-law decrease of late-time fields, cannot be expected for such computations. We present computational demonstrations and discussions of features of late-time behavior in an evolution with a boundary condition.

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