Gravitational waves emitted by extrasolar planetary systems
Astrophysics
2009-10-31 v3 General Relativity and Quantum Cosmology
Abstract
In this paper we consider the Extra-solar Planetary Systems recently discovered in our Galaxy as potential sources of gravitational waves. We estimate the frequency and characteristic amplitude of the radiation they emit due to the orbital motion, using the quadrupole formalism. In addition, we check whether the conditions needed for the resonant excitation of the f- and g-modes of the central star can be fulfilled. By a Roche-lobe analysis, we show that there could exist systems in which the low-order g-modes could be excited, although this does not happen in the systems discovered up to now.
Cite
@article{arxiv.astro-ph/0001463,
title = {Gravitational waves emitted by extrasolar planetary systems},
author = {Valeria Ferrari and Marco D'Andrea and Emanuele Berti},
journal= {arXiv preprint arXiv:astro-ph/0001463},
year = {2009}
}
Comments
14 pages, 5 figures. Accepted for publication on International Journal of Modern Physics D. Table 6 and minor typos corrected