Can Schwarzschildean gravitational fields suppress gravitational waves?

Details Can Schwarzschildean gravitational fields suppress gravitational waves? Can Schwarzschildean gravitational fields suppress gravitational waves?

2001-03-09

arxiv.org/abs/gr-qc/0103033v2

Phys.Rev.D64:044012,2001

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages, Revtex. Added three references; a new comment in Sec. 7; several misprints corrected. To appear in the Phys. Rev. D

Scientific paper

10.1103/PhysRevD.64.044012

Gravitational waves in the linear approximation propagate in the Schwarzschild spacetime similarly as electromagnetic waves. A fraction of the radiation scatters off the curvature of the geometry. The energy of the backscattered part of an initially outgoing pulse of the quadrupole gravitational radiation is estimated by compact formulas depending on the initial energy, the Schwarzschild radius, and the location and width of the pulse. The backscatter becomes negligible in the short wavelength regime.

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