中文
相关论文

相关论文: Anisotropic strange stars under simplest minimal m…

200 篇论文

In this paper, we explore the existence of spherically symmetric strange quark configurations coupled with anisotropic fluid setup in the framework of modified Gauss-Bonnet theory. In this regard, we adopt two models such as \emph{(i)}…

广义相对论与量子宇宙学 · 物理学 2024-11-05 K. Hassan , Tayyab Naseer , M. Sharif

This study investigates the behavior of charged compact stars within the $f(\mathfrak{Q}, \mathcal{T})$ gravitational framework, where $\mathfrak{Q}$ denotes the non-metricity scalar and $\mathcal{T}$ represents the trace of the…

广义相对论与量子宇宙学 · 物理学 2026-04-07 M. Sharif , Iqra Ibrar

In this work, we investigate the neutron star structure in conservative $f(R, T)$ gravity with $f(R, T)=R+\lambda T$, where $\lambda$ denotes the matter--geometry coupling. The modified stellar structure equations are solved using realistic…

宇宙学与河外天体物理 · 物理学 2026-01-27 Premachand Mahapatra , Prasanta Kumar Das

We obtain well behaved interior solutions describing hydrostatic equilibrium of anisotropic relativistic stars in scale-dependent gravity, where Newton's constant is allowed to vary with the radial coordinate throughout the star. Assuming…

广义相对论与量子宇宙学 · 物理学 2021-01-26 Grigoris Panotopoulos , Angel Rincon , Ilidio Lopes

In the present work we study non-rotating dark stars in $f(R)$ modified theory of gravity. In particular, we have considered bosonic self-interacting dark matter modelled inside the star as a Bose-Einstein condensate, while as far as the…

广义相对论与量子宇宙学 · 物理学 2018-02-14 Grigoris Panotopoulos , Ilidio Lopes

In this work we investigate neutron stars (NS) in $f(\mathcal{R,T})$ gravity for the case $R+2\lambda\mathcal{T}$, $\mathcal{R}$ is the Ricci scalar and $\mathcal{T}$ the trace of the energy-momentum tensor. The hydrostatic equilibrium…

高能天体物理现象 · 物理学 2021-01-01 R. Lobato , O. Lourenço , P. H. R. S. Moraes , C. H. Lenzi , M. de Avellar , W. de Paula , M. Dutra , M. Malheiro

The Teleparallel Theory is an alternative theory of gravity equivalent to General Relativity (GR) and with non-vanishing torsion $T$. Some extensions of this theory, the so-called $f(T)$ models, have been subject of many recent works. The…

广义相对论与量子宇宙学 · 物理学 2023-04-13 J. C. N. de Araujo , H. G. M. Fortes

In the present work we study the gravitational effects of condensed dark matter on strange stars. We consider self-interacting dark matter particles with properties consistent with current observational constraints, and dark matter inside…

广义相对论与量子宇宙学 · 物理学 2017-08-02 Grigoris Panotopoulos , Ilidio Lopes

The structure and stability of quark stars (QSs) made of interacting quark matter are discussed in this study, taking color superconductivity and perturbative QCD corrections into account. By combining this EoS with the…

高能物理 - 理论 · 物理学 2025-06-12 Takol Tangphati , İzzet Sakallı , Ayan Banerjee , Anirudh Pradhan

The present paper is devoted to investigating the possibility of getting stellar interiors for ultra-dense compact spherical systems portraying an anisotropic matter distribution employing the gravitational decoupling by means of Minimal…

广义相对论与量子宇宙学 · 物理学 2020-03-12 S. K. Maurya , Abdelghani Errehymy , Ksh. Newton Singh , Francisco Tello-Ortiz , Mohammed Daoud

In an earlier treatment it was demonstrated that general relativity gives higher values of surface tension in strange stars with quark matter than neutron stars.We generate the modified Tolman-Oppenheimer-Volkoff equation to incorporate…

广义相对论与量子宇宙学 · 物理学 2009-11-13 R. Sharma , S. D. Maharaj

In this paper, we have studied the new exact model of anisotropic star in $f(T)$ theory of gravity. The dynamical equations in $f(T)$ theory with the anisotropic fluid have been solved by using Krori-Barua solution. We have determined that…

广义相对论与量子宇宙学 · 物理学 2018-12-27 D. Momeni , G. Abbas , S. Qaisar , Zaid Zaz , R. Myrzakulov

Motivated by recent suggestions that strange stars can be responsible for glitches and other observational features of pulsar, we review some possible equations of state and their implications for models of neutron, hybrid and strange…

天体物理学 · 物理学 2009-11-11 D. P. Menezes , D. B. Melrose

This paper focuses on the analysis of static spherically symmetric anisotropic solutions in the presence of electromagnetic field through the gravitational decoupling approach in…

广义相对论与量子宇宙学 · 物理学 2024-03-04 M. Sharif , T. Naseer

We propose a spherically symmetric and anisotropic model for strange quark stars within the framework of MIT Bag model. Though the model is found to comply with all the physical requirements of a realistic star satisfying a strange matter…

广义相对论与量子宇宙学 · 物理学 2017-11-20 Mehedi Kalam , Anisul Ain Usmani , Farook Rahaman , Sk. Monowar Hossein , Indrani Karar , Ranjan Sharma

Current study highlights the physical characteristics of charged anisotropic compact stars by exploring some exact solutions of modified field equations in $f(R,G)$ gravity. A comprehensive analysis is performed from the obtained solutions…

广义相对论与量子宇宙学 · 物理学 2018-06-13 M. Farasat Shamir , Saeeda Zia

In this paper we employ Tolman VII solution with exotic matter that may be present in the extremely dense core of compact objects. The Tolman VII solution, an exact analytic solution to the spherically symmetric, static Einstein field…

广义相对论与量子宇宙学 · 物理学 2020-05-05 Ksh. Newton Singh , Amna Ali , Farook Rahaman , Salah Nasri

In this paper, stellar hydrostatic equilibrium configuration of the compact stars (neutron stars and strange stars) has been studied for $f(\mathcal{G},T)$ gravity model, with $\mathcal{G}$ and $T$ being the Gauss-Bonnet invariant and the…

综合物理 · 物理学 2019-11-05 M. Farasat Shamir , Mushtaq Ahmad

In this study, we explore several new characteristics of a static anisotropic hybrid star with strange quark matter (SQM) and ordinary baryonic matter (OBM) distribution. Here, we use the MIT bag model equation of state to connect the…

广义相对论与量子宇宙学 · 物理学 2023-07-25 Piyali Bhar , Sneha Pradhan , Adnan Malik , P. K. Sahoo

The strong-field gravity in General Relativity (GR) realized in neutron stars (NSs) renders the Equation of State (EOS) $P(\varepsilon)$ of supradense neutron star (NS) matter to be essentially nonlinear and refines the upper bound for…

高能天体物理现象 · 物理学 2024-12-12 Bao-Jun Cai , Bao-An Li