A method to measure a relative transverse velocity of source-lens-observer system using gravitational lensing of gravitational waves
General Relativity and Quantum Cosmology
2010-10-12 v1
Abstract
Gravitational waves propagate along null geodesics like light rays in the geometrical optics approximation, and they may have a chance to suffer from gravitational lensing by intervening objects, as is the case for electromagnetic waves. Long wavelength of gravitational waves and compactness of possible sources may enable us to extract information in the interference among the lensed images. We point out that the interference term contains information of relative transverse velocity of the source-lens-observer system, which may be obtained by possible future space-borne gravitational wave detectors such as BBO/DECIGO.
Keywords
Cite
@article{arxiv.0908.0186,
title = {A method to measure a relative transverse velocity of source-lens-observer system using gravitational lensing of gravitational waves},
author = {Yousuke Itoh and Toshifumi Futamase and Makoto Hattori},
journal= {arXiv preprint arXiv:0908.0186},
year = {2010}
}
Comments
27 pages, 9 figures. Accepted for publication in Physical Review D