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Phys. Rev. D 62, 041501(R) (2000) [5 pages]

Electromagnetic wave tails on curved spacetime and their observational implications

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Romi Mankin
Department of Theoretical Physics, Tallinn Pedagogical University, 25 Narva Road, 10120 Tallinn, Estonia

T õnu Laas*
Department of Theoretical Physics, Tallinn Pedagogical University, 25 Narva Road, 10120 Tallinn, Estonia
Institute of Theoretical Physics, Tartu University, 4 Tähe Street, 51010 Tartu, Estonia

Risto Tammelo†
Institute of Theoretical Physics, Tartu University, 4 Tähe Street, 51010 Tartu, Estonia

Received 16 December 1999; published 5 July 2000

We calculate the tail term of the electromagnetic potential of a pulsed source in arbitrary bounded motion in a weak gravitational field using a higher-order Green’s function approach and demonstrate that generally the received radiation tail arrives after a time delay which represents geometrical backscattering by the central gravitational source. We apply the results to a compact binary system and conclude that under certain conditions the tail energy can be a noticeable fraction of the direct pulse energy.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.62.041501
DOI:
10.1103/PhysRevD.62.041501
PACS:
04.20.-q, 95.30.Sf

*Electronic address: tony@tpu.ee

†Electronic address: tammelo@ut.ee

 
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