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  Optics in a nonlinear gravitational plane wave

Harte, A. I. (2015). Optics in a nonlinear gravitational plane wave. Classical and quantum gravity, 32(17): 175017. doi:10.1088/0264-9381/32/17/175017.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-D035-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-9F15-C
Genre: Journal Article

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 Creators:
Harte, Abraham I.1, Author              
Affiliations:
1Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: Gravitational waves can act like gravitational lenses, affecting the observed positions, brightnesses, and redshifts of distant objects. Exact expressions for such effects are derived here, allowing for arbitrarily-moving sources and observers in the presence of plane-symmetric gravitational waves. The commonly-used predictions of linear perturbation theory are shown to be generically overshadowed---even for very weak gravitational waves---by nonlinear effects when considering observations of sufficiently distant sources; higher-order perturbative corrections involve secularly-growing terms which cannot necessarily be neglected. Even on more moderate scales where linear effects remain at least marginally dominant, nonlinear corrections are qualitatively different from their linear counterparts. There is a sense in which they can, for example, mimic the existence of a third type of gravitational wave polarization.

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 Dates: 2015-02-122015
 Publication Status: Published in print
 Pages: 31 pages
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1502.03658
DOI: 10.1088/0264-9381/32/17/175017
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Title: Classical and quantum gravity
Source Genre: Journal
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Publ. Info: Bristol, U.K. : Institute of Physics
Pages: - Volume / Issue: 32 (17) Sequence Number: 175017 Start / End Page: - Identifier: ISSN: 0264-9381
CoNE: /journals/resource/954925513480_1