In a recent paper (Ruffa 1999) it was proposed that the massive black hole at the Galactic center may act as a gravitational lens focusing gravitational wave energy to the Earth. Considering the gravitational wave signal emitted by galactic spinning pulsars, an enhancement in the gravitational wave intensity by a factor of a few thousand is found. For galactic and extra-galactic sources the intensity enhancement can be as high as 4000 and 17000, respectively. In this note we consider the probability of significant signal enhancement from galactic and extra-galactic pulsars by the proposed mechanism and find that it is actually negligible. The lensing effect due to a possible companion object (a star or the galactic center black hole) of the gravitational wave source is also investigated in the framework of the classical microlensing theory.
CITATION STYLE
De Paolis, F., Ingrosso, G., Nucita, A. A., & Qadir, A. (2002). A note on gravitational wave lensing. Astronomy and Astrophysics, 394(2), 749–752. https://doi.org/10.1051/0004-6361:20021258
Mendeley helps you to discover research relevant for your work.