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Related papers: Charged Gravastars in Rastall-Rainbow Gravity

200 papers

In this article, we are reporting for the first time the existence of gravastar configurations in the framework of K(R,T)-gravity, which can be treated as an alternative to a black hole (Mazur and Mottola). This strengthens how much this…

General Relativity and Quantum Cosmology · Physics 2023-08-22 GRP Teruel , Ksh. Newton Singh , Tanmoy Chowdhury , Farook Rahaman , Monimala Mondal

This work proposes a stellar model under Gauss-Bonnet $f(\mathcal{G}, T)$ gravity with the conjecture theorised by Mazur and Mottola, well known as the gravitational vacuum stars (gravastars). By taking into account the $f(\mathcal{G},T)$…

General Relativity and Quantum Cosmology · Physics 2018-05-24 M. Farasat Shamir , Mushtaq Ahmad

This paper studies the effects of charge on a peculiar stellar object, recognized as gravastar, under the influence of $f(R,T)$ gravity by considering the conjecture of Mazur and Mottola in general relativity. The gravastar is also known as…

General Relativity and Quantum Cosmology · Physics 2019-11-27 M. Sharif , Arfa Waseem

In the current research, we present a novel gravastar model based on the Mazur-Mottola (2004) method with an isotropic matter distribution in $f(Q)$ gravity. The gravastar, a hypothesized substitute for a black hole, is built using the…

General Relativity and Quantum Cosmology · Physics 2023-04-12 Sneha Pradhan , Sanjay Mandal , P. K. Sahoo

The present work looks for the possible existence of static and spherically symmetric wormhole geometries in Rastall-Rainbow gravity. Since, the Rastall-Rainbow gravity model has been constructed with the combination of Rastall theory and…

General Relativity and Quantum Cosmology · Physics 2024-06-07 Abdelghani Errehymy , Ayan Banerjee , Orhan Donmez , Mohammed Daoud , Kottakkaran Sooppy Nisar , Abdel-Haleem Abdel-Aty

This paper investigates the gravastar model as a potential alternative to black holes, utilizing the Kuchowicz metric in the context of Rastall gravity. The model comprises three distinct regions: an interior with positive energy density…

General Relativity and Quantum Cosmology · Physics 2025-09-25 Tayyab Naseer , M. Sharif , Areej Tabassum

In this work, we discuss the configuration of a gravastar (gravitational vacuum stars) in the context of $f(R, \,T )$ gravity by employing the Mazur-Mottola conjecture [P. Mazur and E. Mottola, Report No. LA-UR-01-5067; P. Mazur and E.…

General Relativity and Quantum Cosmology · Physics 2021-08-26 Piyali Bhar , Pramit Rej

In this work, we study the three-dimensional AdS gravitational vacuum stars (gravastars) in the context of gravity's rainbow theory. Then we extend it by adding the Maxwell electromagnetic field. We compute the physical features of…

General Relativity and Quantum Cosmology · Physics 2023-02-17 H. Barzegar , M. Bigdeli , G. H. Bordbar , B. Eslam Panah

A gravastar comprises three distinct sections: the interior zone, the middle shell, and its outer region. By considering a specific extended teleparallel gravity model that incorporates conformal Killing vectors and provides the field…

General Relativity and Quantum Cosmology · Physics 2024-04-30 G. Mustafa , Faisal Javed , Arfa Waseem , S. K. Maurya , Ghulam Fatima

In this work, we investigate gravastar-like structures in static and spherically symmetric space-time within the framework of $f(Q)$ gravity coupled with conformal symmetry. We have modified the conventional gravastar model by introducing a…

General Relativity and Quantum Cosmology · Physics 2025-05-26 Debadri Bhattacharjee , Pradip Kumar Chattopadhyay

In this work, we investigate static configurations of dark energy stars within the framework of Rastall-Rainbow (R-R) gravity, which combines an energy-dependent deformation of spacetime with a nonminimal coupling between matter and…

General Relativity and Quantum Cosmology · Physics 2025-10-21 Ayan Banerjee , Bobur Turimov , Sulton Usanov , Murodbek Vapaev , Yunus Turaev , Zebo Avezmuratova

This manuscript explores the gravastar model in the $f(R,\Sigma,T)$ gravity framework, with the help of Kuchowicz metric funcition, offering an alternative to black holes. A gravastar has three regions: interior, intermediate shell, and…

General Relativity and Quantum Cosmology · Physics 2025-09-05 Bharat Singh , S. Surendra Singh

This paper uses the gravitational decoupling through the minimal geometric deformation approach and extends a known isotropic solution for a self-gravitating interior to two types of anisotropic spherical solutions in Rastall gravity in the…

General Relativity and Quantum Cosmology · Physics 2024-02-20 M. Sharif , M. Sallah

In this article, we study the properties of charged gravastars in torsion-based $f(\mathbb{T})$ gravity in the presence of noncommutative geometry. We have taken the interior from noncommutative motivated space-time, noting that why, from a…

General Relativity and Quantum Cosmology · Physics 2024-10-21 Debasmita Mohanty , Sayantan Ghosh , P. K. Sahoo

In this paper, we have extended the idea of gravitational Bose-Einstein condensate star (gravastar) to charged gravastar system and explored the role of charge in gravastar formation and its properties. We have used the most general line…

General Relativity and Quantum Cosmology · Physics 2023-08-25 D. Bhattacharjee , P. K. Chattopadhyay

In this study, we investigate the features of a charged gravastar within the framework of $f(\mathbb{Q})$ gravity ($\mathbb{Q}$ represents non-metricity) using the Finch-Skea metric. This metric is applied to both the interior and shell…

General Relativity and Quantum Cosmology · Physics 2025-03-11 M. Sharif , Madiha Ajmal

In this paper we construct a charged thin-shell gravastar model within the context of noncommutative geometry. To do so, we choose the interior of the nonsingular de Sitter spacetime with an exterior charged noncommutative solution by…

General Relativity and Quantum Cosmology · Physics 2017-08-24 Ali Övgün , Ayan Banerjee , Kimet Jusufi

We present a stable model for quark stars in Rastall-Rainbow (R-R) gravity. The structure of this configuration is obtained by utilizing an interacting quark matter equation of state. The R-R gravity theory is developed as a combination of…

General Relativity and Quantum Cosmology · Physics 2024-03-06 Takol Tangphati , Dhruba Jyoti Gogoi , Anirudh Pradhan , Ayan Banerjee

Compelling alternatives to black holes, namely, gravitational vacuum star ({\it gravastar}) models, the multilayered structure compact objects, have been proposed to avoid a number of theoretical problems associated with event horizons and…

General Relativity and Quantum Cosmology · Physics 2018-09-13 Ayan Banerjee , J. R. Villanueva , Phongpichit Channuie , Kimet Jusufi

A new model of gravastar is obtained in $D$-dimensional Einstein gravity. This class of solutions includes the gravastar as an alternative to D-dimensional versions of the Schwarzschild-Tangherlini black hole. The configuration of this new…

General Physics · Physics 2014-06-04 Farook Rahaman , Subenoy Chakraborty , Saibal Ray , A. A. Usmani , Safiqul Islam