Year: 2023
Type: article
Abstract: 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.
Source: Physica Scripta
Authors: M Ilyas, A R Athar, F Khan, Asma Anfal
Institutions: Gomal University, University of the Punjab, University of Malakand
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,220
OpenAlex ID: W4385332620