Physical Attributes of Anisotropic Compact Stars in $f(R,G)$ Gravity
Eur. Phys. J. C 77 (2017) 448 Modified gravity is one of the potential candidates to explain the accelerated expansion of the universe. Current study highlights the materialization of anisotropic compact stars in the context of $f(R,G)$ theory of gravity. In particular, to gain insight in the physic...
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Zusammenfassung: | Eur. Phys. J. C 77 (2017) 448 Modified gravity is one of the potential candidates to explain the
accelerated expansion of the universe. Current study highlights the
materialization of anisotropic compact stars in the context of $f(R,G)$ theory
of gravity. In particular, to gain insight in the physical behavior of three
stars namely, Her $X1$, SAX J $1808$-$3658$ and 4U $1820$-$30$, energy density,
and radial and tangential pressures are calculated. The $f(R,G)$ gravity model
is split into a Starobinsky like $f(R)$ model and a power law $f(G)$ model. The
main feature of the work is a $3$-dimensional graphical analysis in which,
anisotropic measurements, energy conditions and stability attributes of these
stars are discussed. It is shown that all three stars behave as usual for
positive values of $f(G)$ model parameter $n$. |
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DOI: | 10.48550/arxiv.1705.06582 |