A Semi-analytic Study of Axial Perturbations of Ultra Compact Stars
General Relativity and Quantum Cosmology
2017-03-24 v1
Abstract
Compact object perturbations, at linear order, often lead in solving one or more coupled wave equations. The study of these equations was typically done by numerical or semi-analytical methods. The WKB method and the associated Bohr-Sommerfeld rule have been proved extremely useful tools in the study of black-hole perturbations and the estimation of the related quasi-normal modes. Here we present an extension of the aforementioned semi-analytic methods in the study of perturbations of ultra-compact stars and gravastars.
Keywords
Cite
@article{arxiv.1703.08156,
title = {A Semi-analytic Study of Axial Perturbations of Ultra Compact Stars},
author = {Sebastian H. Völkel and Kostas D. Kokkotas},
journal= {arXiv preprint arXiv:1703.08156},
year = {2017}
}
Comments
Accepted for publication in CQG, 13 pages, 3 figures, 5 tables