Anisotropic compact objects with Finch–Skea geometry in EGB gravity

• Published in: The European physical journal. C, Particles and fields Vol. 82; no. 6; pp. 1 - 13
• Main Authors: Das, Bibhash, Dey, Sagar, Das, Shyam, Paul, Bikash Chandra
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2022; Springer; Springer Nature B.V; SpringerOpen
• Subjects: Analysis; Anisotropy; Astronomical models; Astronomy; Astrophysics; Astrophysics and Cosmology; Black holes; Elementary Particles; Equations of state; Geometry; Gravity; Hadrons; Heavy Ions; Investigations; Measurement Science and Instrumentation; Neutron stars; Normal distribution; Nuclear Energy; Nuclear Physics; Phase transitions; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quarks; Regular Article - Theoretical Physics; Spacetime; Stellar models; String Theory; Theory of relativity
• ISSN: 1434-6052; 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-022-10483-x

We present a new class of relativistic anisotropic stellar models with spherically symmetric matter distribution in Einstein Gauss–Bonnet (EGB) gravity. A higher dimensional Finch–Skea geometry in the theory is taken up here to construct stellar models in hydrostatic equilibrium. The Gauss–Bonnet term is playing an important role in accommodating neutron stars. We study the physical features namely, the energy density, the radial and tangential pressures and the suitability of the models. It is found that the equation of state of such stars are non-linear which is determined for a given mass and radius of known stars. The stability of the stellar models are also explored for a wide range of values of the model parameters.