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Multiple imaging by gravitational waves

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      Abstract

      Gravitational waves act like lenses for the light propagating through them. This phenomenon is described using the vector formalism employed for ordinary gravitational lenses, which was proved to be applicable also to a non-stationary spacetime, with the appropriate modifications. In order to have multiple imaging, an approximate condition analogous to that for ordinary gravitational lenses must be satisfied. Certain astrophysical sources of gravitational waves satisfy this condition, while the gravitational wave background, on average, does not. Multiple imaging by gravitational waves is, in principle, possible, but the probability of observing such a phenomenon is extremely low.

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      Most cited references 5

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      Light Fluctuations Due to an Intergalactic Flux of Gravitational Waves

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        Light Deflection in Perturbed Friedmann Universes

         Ruth Durrer (1994)
        In this letter a new formula for light deflection is derived using only physically observable concepts. The general result is specialized to cosmological perturbation theory and expressed in terms of gauge--invariant perturbation variables. The resulting scalar, vector and tensor equations are supplemented by simple examples for illustration. The gravity wave example may be of more than academic interest and even represent a new way to detect gravitational waves.
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          Relativistic scattering coherence

           Eric Linder (1986)
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            Author and article information

            Journal
            21 July 1997
            astro-ph/9707236
            10.1142/S0218271898000267
            Custom metadata
            Int.J.Mod.Phys.D7:409-429,1998
            23 pages, LaTeX, no figures, to appear in Int. J. Mod. Phys. D
            astro-ph gr-qc

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