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Anisotropic charged stellar models with modified Van der Waals EoS in f(Q) gravity

Authors :
Allah Ditta
Xia Tiecheng
Abdelghani Errehymy
G. Mustafa
S. K. Maurya
Source :
European Physical Journal C: Particles and Fields, Vol 83, Iss 3, Pp 1-16 (2023)
Publication Year :
2023
Publisher :
SpringerOpen, 2023.

Abstract

Abstract This paper is based on the study of compact stars in the context of electric fields and the nonmetricity effects of gravity. Due to this, we are motivated to build stellar models based on spherically symmetric space-time in f(Q) gravity. The space-time solution is obtained by Durgapal and Bannerji (Phys Rev D 27:328–331,1983) potential along with modified Van der Waals equation of state (EoS) $$p_r=\eta \rho ^2+ \frac{\beta \rho }{\gamma \rho +1}$$ p r = η ρ 2 + β ρ γ ρ + 1 by introducing a specific form of electric charge function $$q(r)=kr^3$$ q ( r ) = k r 3 . In order to validate our charge model, we used observational data from the literature for celestial objects like Her X-1, 4U 1538-52, SAX J1808.4-3658, and SMC X-1. Furthermore, we have also retrieved the uncharged effects of gravity for the model SMC X-1 by taking $$k=0$$ k = 0 . Our present physical analysis shows that all the obtained features for the present solution are in excellent agreement with the viable model as far as observational data is concerned.

Details

Language :
English
ISSN :
14346052
Volume :
83
Issue :
3
Database :
Directory of Open Access Journals
Journal :
European Physical Journal C: Particles and Fields
Publication Type :
Academic Journal
Accession number :
edsdoj.5c5e73a9b5a84335b5844025499746d6
Document Type :
article
Full Text :
https://doi.org/10.1140/epjc/s10052-023-11390-5