A post-Keplerian parameter to test gravito-magnetic effects in binary pulsar systems
General Relativity and Quantum Cosmology
2007-05-23 v2 Astrophysics
Abstract
We study the pulsar timing, focusing on the time delay induced by the gravitational field of the binary systems. In particular, we study the gravito-magnetic correction to the Shapiro time delay in terms of Keplerian and post-Keplerian parameters, and we introduce a new post-Keplerian parameter which is related to the intrinsic angular momentum of the stars. Furthermore, we evaluate the magnitude of these effects for the binary pulsar systems known so far. The expected magnitude is indeed small, but the effect is important per se.
Cite
@article{arxiv.gr-qc/0509098,
title = {A post-Keplerian parameter to test gravito-magnetic effects in binary pulsar systems},
author = {Matteo Luca Ruggiero and Angelo Tartaglia},
journal= {arXiv preprint arXiv:gr-qc/0509098},
year = {2007}
}
Comments
6 pages, RevTeX, 1 eps figure, accepted for publication in Physical Review D; references added