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相关论文: Study of gravastars under $f(\mathbb{T})$ gravity

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We propose a unique stellar model under the $f(R,\mathcal{T})$ gravity by using the conjecture of Mazur-Mottola [P. Mazur and E. Mottola, Report number: LA-UR-01-5067., P. Mazur and E. Mottola, Proc. Natl. Acad. Sci. USA 101, 9545 (2004)]…

广义相对论与量子宇宙学 · 物理学 2017-06-14 Amit Das , Shounak Ghosh , B. K. Guha , Swapan Das , Farook Rahaman , Saibal Ray

We propose a stellar model under the $f(\mathbb{T},\mathcal{T})$ gravity following Mazur-Mottola's conjecture [Mazur (2001), Mazur (2004)] known as gravastar which is generally believed as a viable alternative to black hole. The gravastar…

广义相对论与量子宇宙学 · 物理学 2020-03-09 Shounak Ghosh , A. D. Kanfon , Amit Das , M. J. S. Houndjo , I. G. Salako , Saibal Ray

Gravastars have been considered as a feasible alternative to black holes in the past couple of decades. Stable models of gravastar have been studied in many of the alternative gravity theories besides standard General Relativity (GR). The…

广义相对论与量子宇宙学 · 物理学 2021-07-14 Shounak Ghosh , Sagar Dey , Amit Das , Anirban Chanda , B C Paul

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…

广义相对论与量子宇宙学 · 物理学 2023-04-12 Sneha Pradhan , Sanjay Mandal , P. K. Sahoo

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.…

广义相对论与量子宇宙学 · 物理学 2021-08-26 Piyali Bhar , Pramit Rej

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 $f(\mathcal{G},T)$…

广义相对论与量子宇宙学 · 物理学 2018-05-24 M. Farasat Shamir , Mushtaq Ahmad

In the last few decades, gravastars have been proposed as an alternative to black holes. The stability of the gravastar has been studied in many modified theories of gravity along with Einstein's GR. The $f(Q,T)$ gravity, a successfully…

广义相对论与量子宇宙学 · 物理学 2023-08-09 Sneha Pradhan , Debasmita Mohanty , P. K. Sahoo

We present a new model of gravastar in the higher dimensional Einsteinian spacetime including Einstein's cosmological constant $\Lambda$. Following Mazur and Mottola (2001,~2004) we obtain a set of solutions for gravastar. This gravastar is…

广义相对论与量子宇宙学 · 物理学 2018-05-22 Shounak Ghosh , Saibal Ray , Farook Rahaman , B. K. Guha

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…

广义相对论与量子宇宙学 · 物理学 2025-09-05 Bharat Singh , S. Surendra Singh

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…

广义相对论与量子宇宙学 · 物理学 2019-11-27 M. Sharif , Arfa Waseem

Mazur and Mottola's gravastar model represents one of the few serious alternatives to the traditional understanding of the black hole. The gravastar is typically regarded as a theoretical alternative for the black hole. This article…

综合物理 · 物理学 2025-02-18 Meghanil Sinha , S. Surendra Singh

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…

广义相对论与量子宇宙学 · 物理学 2023-08-22 GRP Teruel , Ksh. Newton Singh , Tanmoy Chowdhury , Farook Rahaman , Monimala Mondal

This study explores the effect of charge on a special astronomical object known as a gravastar, which is viewed as an alternative to a black hole. Based on the conjecture put out by Mazur and Mottola in general relativity, the study…

广义相对论与量子宇宙学 · 物理学 2024-05-01 Faisal Javed , Arfa Waseem , G. Mustafa , Fairouz Tchier , Farruh Atamurotov , Bobomurat Ahmedov , Ahmadjon Abdujabbarov

This paper examines the structure of a gravitationally vacuum star (also known as gravastar) in the background of ${f}(\Re,\mathcal{T}^{2})$ theory. This hypothetical object can be treated as a substitute of a black hole, with three…

广义相对论与量子宇宙学 · 物理学 2025-09-16 M. Sharif , Saba Naz

We propose a class of models, in which stable gravastar with large surface redshift becomes a solution. In recent decades, gravastars have become a plausible substitute for black holes. Researchers have explored stable gravastar models in…

广义相对论与量子宇宙学 · 物理学 2024-01-31 Shin'ichi Nojiri , G. G. L. Nashed

In this work we derive a gravastar model in Randall-Sundrum II braneworld scenario. Gravastars (or gravitationally vacuum stars) were proposed by Mazur and Mottola as systems of gravitational collapse alternative to black holes. The…

广义相对论与量子宇宙学 · 物理学 2019-10-08 José D V Arbañil , Pedro H R S Moraes , Manuel Malheiro

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…

广义相对论与量子宇宙学 · 物理学 2025-09-25 Tayyab Naseer , M. Sharif , Areej Tabassum

This paper investigates the influence of charge on physical features of gravastars in the framework of energy-momentum squared gravity. A gravastar is an alternate model to a black hole that comprises of three distinct regions, namely the…

广义相对论与量子宇宙学 · 物理学 2022-04-06 M. Sharif , Saba Naz

We propose a new model of a {\it gravastar} admitting conformal motion. While retaining the framework of the Mazur-Mottola model, the gravastar is assumed to be internally charged, with an exterior defined by a Reissner-Nordstr{\"o}m rather…

广义相对论与量子宇宙学 · 物理学 2011-06-06 A A Usmani , Farook Rahaman , Saibal Ray , K K Nandi , Peter K. F. Kuhfittig , Sk. A Rakib , Z Hasan

In the present work, we have discussed the four dimensional spherically symmetric steller system in the framework of modified $f(T)$ gravity theory with electro-magnetic field. The field equations have been written for two cases, either…

广义相对论与量子宇宙学 · 物理学 2019-07-24 Ujjal Debnath
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