Gravitational Waves from Coalescing Binary Sources

Details Gravitational Waves from Coalescing Binary Sources Gravitational Waves from Coalescing Binary Sources

2010-07-08

arxiv.org/abs/1007.1358v1

Int.J.Mod.Phys.D19:2295-2298,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, awarded a honorable mention from the Gravity Research Foundation 2010

Scientific paper

10.1142/S0218271810018499

Coalescing binary systems (eg pulsars, neutron stars and black holes) are the most likely sources of gravitational radiation, yet to be detected on or near Earth, where the local gravitational field is negligible and the Poincar\'e symmetry rules. On the other hand, the general theory of gravitational waves emitted by axially symmetric rotating sources predicts the existence of a non-vanishing news function. The existence of such function implies that, for a distant observer, the asymptotic group of isometries, the BMS group, has a translational symmetry that depends on the orbit periodicity of the source, thus breaking the isotropy o the Poincar\'e translations. These results suggest the application of the asymptotic BMS-covariant wave equation to obtain a proper theoretical basis for the gravitational waves observations.

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