Effects of f(R, G) gravity on anisotropic charged compact objects - INSPIRE

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Effects of f(R, G) gravity on anisotropic charged compact objects

M. Ilyas
(
- Gomal U.
)
,
A.R. Athar
(
- Islamia U. Bahawalpur
)
,
F. Khan
(
- Gomal U.
)
,
Asma Anfal
(
- Gomal U.
)

May 4, 2023

Published in:

Phys.Scripta 98 (2023) 9, 095011

Published: Aug 9, 2023

e-Print:

2305.03064 [gr-qc]

DOI:

10.1088/1402-4896/aceba2

View in:

ADS Abstract Service

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Abstract: (IOP)

The present study provides an in-depth analysis of the anisotropic matter distribution and various physical aspects of compact stars in the context of a f(R, G)-gravity framework. In order to gain an exhaustive understanding of these aspects, our study focuses on three particular compact stars: VELA X-1 (CS1), SAXJ1808.4-3658 (CS2), and 4U1820-30 (CS3). We conducted calculations on the relevant characteristics of these compact stars by employing three different models of f(R, G)-gravity. As a convenient approach, the f(R, G)-gravity is organized into two distinct components, which include f

_{1}

(R) and f

_{2}

(G). The R dependent component is modeled similarly to the Hu-Sawicki approach, while for modeling the G dependent component, we chose logarithmic and power law-like approaches and suggested three viable gravity models. Graphical methods are used to analyze the physical properties of the compact stars in the domain of suggested models of gravity.

Note:

texts modified, typos corrected, version accepted for publication/published in Physica Scripta

modified gravity
compact objects
stability
star: compact
gravitation: model
expansion: acceleration
matter: anisotropy
star: charge

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