Toroidal oscillations of slowly rotating relativistic star in tensor-vector-scalar theory

Details Toroidal oscillations of slowly rotating relativistic star in tensor-vector-scalar theory Toroidal oscillations of slowly rotating relativistic star in tensor-vector-scalar theory

2010-12-09

arxiv.org/abs/1012.2143v1

Phys.Rev.D82:124061,2010

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

accepted for publication in Physical Review D

Scientific paper

10.1103/PhysRevD.82.124061

We examine the toroidal oscillations on the slowly rotating relativistic stars in tensor-vector-scalar (TeVeS) theory with the Cowling approximation. As a result, we find that perturbation equations describing the toroidal oscillations are same equation form as in general relativity (GR). Although the frequencies of toroidal oscillations in TeVeS are not so different from those in GR, the momentum inertia depends strongly on the gravitational theory. Thus, observing the frequencies of toroidal oscillations and momentum inertia with high accuracy might reveal the gravitational theory in the strong-field regime.

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