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相关论文: Dissipative Spherical Collapse of Charged Anisotro…

200 篇论文

In this paper, we have discussed the gravitational collapse and expansion of charged anisotropic cylindrically symmetric gravitating source. To this end, the generating solutions of Einstein-Maxwell field equations for the given source and…

综合物理 · 物理学 2015-04-22 T. Mahmood , S. M. Shah , G. Abbas

In this paper, we develop two anisotropic solutions for static self-gravitating spherical structure in the presence of electromagnetic field through gravitational decoupling approach in $f(G,T)$ theory, where $G$ and $T$ denote the…

广义相对论与量子宇宙学 · 物理学 2022-11-04 M. Sharif , Komal Hassan

In this paper, we determine the electromagnetic effects on the complexity factor of radiating anisotropic cylindrical geometry in the background of $f(G,\mathcal{T})$ theory. The self-gravitating objects possessing inhomogeneous energy…

广义相对论与量子宇宙学 · 物理学 2023-09-07 M. Sharif , K. Hassan

The plan of this study is to inspect the effects of dynamics of dissipative gravitational collapse in cylindrical symmetric non-static spacetime by using Misner-Sharp concept in context of metric $f(R)$ theory of gravity. For more generic…

综合物理 · 物理学 2018-10-30 G. Abbas , H. Nazar

We study the effects of magnetic fields of non-linear electrodynamics in chameleonic Brans-Dicke theory under the existence of anisotropic spherical fluid. In particular, we explore dissipative and non-dissipative self-gravitating systems…

广义相对论与量子宇宙学 · 物理学 2024-10-03 Z. Yousaf , M. Z. Bhatti , S. Rehman , Kazuharu Bamba

This paper investigates instability ranges of a cylindrically symmetric collapsing stellar object in Brans-Dicke theory of gravity. For this purpose, we use perturbation approach in the modified field equations as well as dynamical…

广义相对论与量子宇宙学 · 物理学 2016-07-20 M. Sharif , Rubab Manzoor

In this paper we study the shear free spherical symmetric gravitational collapse of charged radiating star. All the physical quantities including pressure, density are regular. Energy conditions are satisfied throughout the interior of the…

广义相对论与量子宇宙学 · 物理学 2023-12-29 Suresh C. Jaryal , Ayan Chatterjee , Akshay Kumar

We consider a collapsing sphere and discuss its evolution under the vanishing expansion scalar in the framework of $f(R)$ gravity. The fluid is assumed to be locally anisotropic which evolves adiabatically. To study the dynamics of the…

综合物理 · 物理学 2015-06-03 M. Sharif , H. Rizwana Kausar

This paper is devoted to study the effects of electromagnetic field on the energy density inhomogeneity in the relativistic self-gravitating fluids for spherically symmetric spacetime. Two important equations of the Weyl tensor are…

广义相对论与量子宇宙学 · 物理学 2015-06-11 M. Sharif , Neelum Bashir

The structure of the Einstein field equations describing the gravitational collapse of spherically symmetric isotropic fluids is analyzed here for general equations of state. A suitable system of coordinates is constructed which allows us,…

广义相对论与量子宇宙学 · 物理学 2015-03-24 Roberto Giambò , Giulio Magli

Gravitational collapse of cylindrical anisotropic fluid has been considered in analogy with the work of Misner and Sharp. Using Darmois matching conditions, the interior cylindrical dissipative fluid (in the form of shear viscosity and heat…

综合物理 · 物理学 2016-03-01 Sanjukta Chakraborty , Subenoy Chakraborty

A class of spherical collapsing exact solutions with electromagnetic charge is derived. This class of solutions -- in general anisotropic -- contains however as a particular case the charged dust model already known in literature. Under…

广义相对论与量子宇宙学 · 物理学 2015-06-11 F. Cipolletta , R. Giambò

We consider the modified $f(R)$ theory of gravity whose higher order curvature terms are interpreted as a gravitational fluid or dark source. The gravitational collapse of a spherically symmetric star, made up of locally anisotropic viscous…

广义相对论与量子宇宙学 · 物理学 2015-05-30 M. Sharif , H. Rizwana Kausar

In this paper, we analyze stability regions of a non-static restricted class of axially symmetric spacetime with anisotropic matter distribution. We consider $f(R)=R+{\epsilon}R^2$ model and assume hydrostatic equilibrium of the axial…

广义相对论与量子宇宙学 · 物理学 2014-11-19 M. Sharif , Z. Yousaf

In this paper, we formulate two exact charged solutions to the field equations by extending the domain of existing anisotropic models with the help of minimal gravitational decoupling in $f(\mathbb{R},\mathbb{T})$ theory. For this, the…

广义相对论与量子宇宙学 · 物理学 2023-12-07 M. Sharif , Tayyab Naseer

The study of perturbation of self-gravitating celestial cylindrical object have been carried out in this paper. We have designed a framework to construct the collapse equation by formulating the modified field equations with the background…

综合物理 · 物理学 2017-11-08 M. Zaeem-ul-Haq Bhatti , Z. Yousaf

In the present work, gravitational collapse of an inhomogeneous spherical star model, consisting of inhomogeneous dust fluid (dark matter) in the background of dark energy is considered. The collapsing process is examined first separately…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Tanwi Bandyopadhyay , Subenoy Chakraborty

In this work we have discussed the implications of shear-free condition on axially symmetric anisotropic gravitating objects in $f(R,T)$ theory. Restricted axial symmetry ignoring rotation and reflection enteries is taken into account for…

广义相对论与量子宇宙学 · 物理学 2017-10-04 Ifra Noureen , M. Zubair

By the end of the evaluation of this research artifact, readers would be able to describe the effect of conducted plasma on evolution of stellar objects. In this script, we have analyzed the stability of charged cylindrically symmetric…

广义相对论与量子宇宙学 · 物理学 2019-10-28 Muhammad Asad Saeed , Ifra Noureen

We examine the structure scalars constructed from the orthogonal splitting of the Riemann tensor for the spacetime metric describing the interior of a charged matter configuration undergoing dissipative collapse in the framework of $f(R,T)$…

广义相对论与量子宇宙学 · 物理学 2025-08-19 Uttaran Ghosh , Sarbari Guha