Energy of gravitational radiation in plane-symmetric space-times

Details Energy of gravitational radiation in plane-symmetric space-times Energy of gravitational radiation in plane-symmetric space-times

2008-05-19

arxiv.org/abs/0805.2813v1

Phys.Rev.D78:044027,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 REVTeX4 pages

Scientific paper

10.1103/PhysRevD.78.044027

Gravitational radiation in plane-symmetric space-times can be encoded in a complex potential, satisfying a non-linear wave equation. An effective energy tensor for the radiation is given, taking a scalar-field form in terms of the potential, entering the field equations in the same way as the matter energy tensor. It reduces to the Isaacson energy tensor in the linearized, high-frequency approximation. An energy conservation equation is derived for a quasi-local energy, essentially the Hawking energy. A transverse pressure exerted by interacting low-frequency gravitational radiation is predicted.

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