Gravitational Lensing of Gravitational Waves from Inspiraling Binaries by a Point Mass Lens

Details Gravitational Lensing of Gravitational Waves from Inspiraling Binaries by a Point Mass Lens Gravitational Lensing of Gravitational Waves from Inspiraling Binaries by a Point Mass Lens

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998phrvl..80.1138n&link_type=abstract

Physical Review Letters, Volume 80, Issue 6, February 9, 1998, pp.1138-1141

Physics

18

Scientific paper

Gravitational lensing of gravitational waves from inspiraling binaries is discussed in the context of advanced laser-interferometer detectors, taking correct account of the diffraction effect. Convolving the spectrum of the lensed waveform with that of the detector noise, we calculate how much the signal-to-noise ratio is magnified by gravitational lensing as a function of the mass and position of the lens. When the lens is much lighter than ~102Msolar, the diffraction is so effective that the wave flux is not magnified appreciably. We predict that lensed waveforms are distinguishable from unlensed ones in that the signal-to-noise ratio shows an oscillatory behavior as the frequency sweeps up.

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