Quark stars in 4-dimensional Einstein–Gauss–Bonnet gravity

Ksh. Newton Singh; S. K. Maurya; Abhisek Dutta; Farook Rahaman; Somi Aktar

doi:10.1140/epjc/s10052-021-09692-7

EPJ

a
b
c
d
e
ap
st
h
plus
ds
pv
ti
qt
am
n

2024 Impact factor 4.8

Particles and Fields

Open Access

Eur. Phys. J. C (2021) 81: 909
https://doi.org/10.1140/epjc/s10052-021-09692-7

Regular Article - Theoretical Physics

Quark stars in 4-dimensional Einstein–Gauss–Bonnet gravity

Ksh. Newton Singh¹, S. K. Maurya²^b, Abhisek Dutta³, Farook Rahaman⁴ and Somi Aktar⁴

¹ Department of Physics, National Defence Academy, Khadakwasla, 411023, Pune, India
² Department of Mathematical and Physical Sciences, College of Arts and Science, University of Nizwa, Nizwa, Sultanate of Oman
³ Department of Physics, Jadavpur University, 700032, Kolkata, India
⁴ Department of Mathematics, Jadavpur University, 700032, Kolkata, India

^b sunil@unizwa.edu.om

Received: 24 June 2021
Accepted: 28 September 2021
Published online: 15 October 2021

Abstract

The article explores the first exact solution in a four-dimensional EGB-gravity with an anisotropic matter source. The solution has been found by two assumptions, a metric potential and the MIT-bag equation of state. Further, the solution has been tested with several physical constraints. Finally, using the boundary condition we have also estimated the range of bag constant $B$ $\mathcal {B}$ by varying the mass of the structure and the Gauss-Bonnet coupling constant $α$ $\alpha$ . This allows us to check the physical viability of the solution by comparing it with the existing accepted range of bag constant $B$ $\mathcal {B}$ .

© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.