Constraining the Kehagias-Sfetsos solution in the Horava-Lifshitz gravity with extrasolar planets
Abstract
We consider a spherically symmetric and asymptotically flat vacuum solution of the Horava-Lifshitz (HL) gravity that is the analog of the general relativistic Schwarzschild black hole. In the weak-field and slow-motion approximation, we work out the correction to the third Kepler law of a test particle induced by such a solution and compare it to the phenomenologically determined orbital period of the transiting extrasolar planet HD209458b Osiris to preliminarily obtain an order-of-magnitude lower bound on the KS dimensionless parameter \omega_0 >= 1.4\times 10^-18. As suggestions for further analyses, the entire data set of HD209458b should be re-processed by explicitly modeling KS gravity as well, and one or more dedicated solve-for parameter(s) should be estimated.
Keywords
Cite
@article{arxiv.0909.5355,
title = {Constraining the Kehagias-Sfetsos solution in the Horava-Lifshitz gravity with extrasolar planets},
author = {Lorenzo Iorio and Matteo Luca Ruggiero},
journal= {arXiv preprint arXiv:0909.5355},
year = {2011}
}
Comments
Latex2e, 13 pages, no figures, no tables, 56 references. Accepted in The Open Astronomy Journal (TOAJ)