A Semi-analytic Study of Axial Perturbations of Ultra Compact Stars
arXiv:1703.08156 · doi:10.1088/1361-6382/aa68cc
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.
arXiv commentAccepted for publication in CQG, 13 pages, 3 figures, 5 tables
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