Electrically charged quark stars in 4D Einstein–Gauss–Bonnet gravity

نویسندگان

چکیده

In this work we study the properties of compact spheres made a charged perfect fluid with MIT bag model EoS for quark matter. Considering static spherically symmetric spacetime derive hydrostatic equilibrium equations in recently formulated four dimensional Einstein-Gauss-Bonnet ($4D$ EGB) gravity theory. setting, modified TOV are solved numerically aim to investigate impact electric charge on stellar structure. A nice feature $4D$ EGB theory is that Gauss-Bonnet term has non-vanishing contribution gravitational dynamics spacetime. We therefore analyse effects coupling constant $\alpha$ and fraction $\beta$ mass-radius ($M-R$) diagram also mass-central density $(M-\rho_c)$ relation stars. Finally, conclude depending choice one could have larger mass radius compared GR can be relevant more massive objects due effect repulsive Coulomb force.

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ژورنال

عنوان ژورنال: European Physical Journal C

سال: 2022

ISSN: ['1434-6044', '1434-6052']

DOI: https://doi.org/10.1140/epjc/s10052-022-10123-4