Radial oscillations and stability of compact stars in Eddington-inspired Born-Infeld gravity
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AbstractWe study the hydrostatic equilibrium structure of compact stars in the Eddington-inspired Born-Infeld gravity recently proposed by Banados and Ferreira [Phys. Rev. Lett. 105, 011101 (2010)]. We also develop a framework to study the radial perturbations and stability of compact stars in this theory. We find that the standard results of stellar stability still hold in this theory. The frequency square of the fundamental oscillation mode vanishes for the maximum-mass stellar configuration. The dependence of the oscillation mode frequencies on the coupling parameter kappa of the theory is also investigated. We find that the fundamental mode is insensitive to the value of kappa, while higher-order modes depend more strongly on kappa
All Author(s) ListSham YH, Lin LM, Leung PT
Journal namePhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume Number86
Issue Number6
PublisherAmerican Physical Society
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesAstronomy & Astrophysics; ASTRONOMY & ASTROPHYSICS; Physics; Physics, Particles & Fields; PHYSICS, PARTICLES & FIELDS

Last updated on 2020-26-09 at 23:09