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- W2079584683 abstract "The so-called ``hyperon puzzle'' in the theory of neutron stars is considered in the framework of modified $f(R)$ gravity. We show that for simple hyperon equations of state, it is possible to obtain the maximal neutron star mass which satisfies the recent observational data for PSR J1614-2230, in higher-derivative models with power-law terms as $f(R)=R+ensuremath{gamma}{R}^{2}+ensuremath{beta}{R}^{3}$. The soft hyperon equation of state under consideration is usually treated as unrealistic in the standard general relativity. The numerical analysis of the mass-radius relation for massive neutron stars with a hyperon equation of state in modified gravity turns out to be consistent with observations. Thus, we show that the same modified gravity can solve at once three problems: a consistent description of the maximal mass of a neutron star, a realistic mass-radius relation, and a method to account for hyperons in the equation of state." @default.
- W2079584683 created "2016-06-24" @default.
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- W2079584683 date "2014-05-08" @default.
- W2079584683 modified "2023-10-16" @default.
- W2079584683 title "Maximal neutron star mass and the resolution of the hyperon puzzle in modified gravity" @default.
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- W2079584683 doi "https://doi.org/10.1103/physrevd.89.103509" @default.
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