Radiative falloff in black-hole spacetimes

Details Radiative falloff in black-hole spacetimes Radiative falloff in black-hole spacetimes

1999-08-12

arxiv.org/abs/gr-qc/9908041v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, 7 figures, ReVTeX

Scientific paper

10.1063/1.1301579

This two-part contribution to the Proceedings of the Eighth Canadian Conference on General Relativity and Relativistic Astrophysics is devoted to the evolution of a massless scalar field in two black-hole spacetimes which are not asymptotically flat. In Part I (authored by Eric Poisson) we consider the evolution of a scalar field propagating in Schwarzschild-de Sitter spacetime. The spacetime possesses a cosmological horizon in addition to the usual event horizon. The presence of this new horizon affects the late-time evolution of the scalar field. In part II (authored by William G. Laarakkers) we consider the evolution of a scalar field propagating in Schwarzschild-Einstein-de Sitter spacetime. The spacetime has two distinct regions: an inner black-hole region and an outer cosmological region. Early on in the evolution, the field behaves as if it were in pure Schwarzschild spacetime. Later, the field learns of the existence of the cosmological region and alters its behaviour.

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