Equilibrium and stability of relativistic stars in extended theories of gravity

被引：0

作者：

Aneta Wojnar

Hermano Velten

机构：

[1] Maria Curie-Sklodowska University,Institute of Physics

[2] Univ. di Monte S. Angelo,INFN Sez. di Napoli

[3] Universita’ di Napoli Federico II,Dipartimento di Fisica “E. Pancini”

[4] Complesso Universitario di Monte S. Angelo,undefined

[5] Universidade Federal do Espírito Santo (UFES),undefined

来源：

The European Physical Journal C | 2016年 / 76卷

关键词：

Dark Energy; Scalar Field; Neutron Star; Gordon Equation; Binary Pulsar;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We study static, spherically symmetric equilibrium configurations in extended theories of gravity (ETG) following the notation introduced by Capozziello et al. We calculate the differential equations for the stellar structure in such theories in a very generic form i.e., the Tolman–Oppenheimer–Volkoff generalization for any ETG is introduced. Stability analysis is also investigated with special focus on the particular example of scalar–tensor gravity.

引用

共 50 条

[21] Effects of Modified Theories of Gravity on Neutrino Pair Annihilation Energy Deposition near Neutron Stars [J].

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[23] Structure, maximum mass, and stability of compact stars in f(Q,T) gravity [J].

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[24] Energy conditions and stability in f(R) theories of gravity with nonminimal coupling to matter [J].

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[25] Model-independent limits and constraints on extended theories of gravity from cosmic reconstruction techniques [J].

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[26] Relativistic collapse of axion stars [J].

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[27] Relativistic stars in bigravity theory [J].

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[29] Modified TOV in gravity's rainbow: properties of neutron stars and dynamical stability conditions [J].

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[30] Equilibrium configuration of perfect fluid orbiting around black holes in some classes of alternative gravity theories [J].

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