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相关论文: Strange stars in Krori-Barua space-time under f(R;…

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In this paper, we construct a viable strange star model in the framework of the equation of state, $p_r=\frac{1}{3}(\rho-4B)$, proposed in the MIT bag model, where $B$ is termed as the bag constant. Considering extreme Wood-Saxon-like…

In this paper, we investigate the newborn strange quark stars with constant entropy. We also use the MIT bag model to calculate the thermodynamic properties in two cases; the density-dependent bag constant and the fixed bag constant (B = 90…

We investigate effects of the modified $f(R, \mathcal{T})$ gravity on the charged strange quark stars with the standard choice of $f(R, \mathcal{T})=R+2\chi \mathcal{T}$. Those types of stars are supposed to be made of strange quark matter…

广义相对论与量子宇宙学 · 物理学 2019-11-06 Debabrata Deb , Sergei V. Ketov , Maxim Khlopov , Saibal Ray

The existence of strange matter in compact stars may pose striking sequels of the various physical phenomena. As an alternative to neutron stars, a new class of compact stars called strange stars should exist if the strange matter…

广义相对论与量子宇宙学 · 物理学 2021-03-02 Ayan Banerjee , Takol Tangphati , Phongpichit Channuie

In the current article, we study anisotropic spherically symmetric strange star under the background of $f(R,T)$ gravity using the metric potentials of Tolman-Kuchowicz type~\cite{Tolman1939,Kuchowicz1968} as $\lambda(r)=\ln(1+ar^2+br^4)$…

广义相对论与量子宇宙学 · 物理学 2020-06-03 Suparna Biswas , Dibyendu Shee , B. K. Guha , Saibal Ray

In this article we try to present spherically symmetric isotropic strange star model under the framework of $f(R,\mathcal{T})$ theory of gravity. To this end, we consider that the Lagrangian density is an arbitrary linear function of the…

广义相对论与量子宇宙学 · 物理学 2018-04-23 Debabrata Deb , Farook Rahaman , Saibal Ray , B. K. Guha

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

We study strange stars in the framework of $f\left(R,\mathcal{T}\right)$ theory of gravity where the strange quark matter distribution inside the stellar system is governed by the phenomenological MIT Bag model equation of state (EOS).…

综合物理 · 物理学 2018-04-24 Debabrata Deb , Farook Rahaman , Saibal Ray , B. K. Guha

We derive an equation of state (EOS) for strange matter, starting from an interquark potential which (i) has asymptotic freedom built into it, (ii) shows confinement at zero baryon density and deconfinement at high density and (iii) gives a…

天体物理学 · 物理学 2009-10-31 Mira Dey , Ignazio Bombaci , Jishnu Dey , Subharthi Ray , B. C. Samanta

Strange quark stars with a crust and strange dwarfs consisting of a compact strange quark core and an extended crust are investigated in terms of a bag model. The crust, which consists of atomic nuclei and degenerate electrons, has a…

天体物理学 · 物理学 2009-11-10 Yu. L. Vartanyan , A. K. Grigoryan , T. R. Sargsyan

This study investigates the structural properties of strange quark stars (SQS) using a Quantum Chromodynamics (QCD) perturbative model combined with the latest Particle Data Group dataset. Given the energy scale present in compact stars,…

高能天体物理现象 · 物理学 2025-01-30 J. Sedaghat , G. H. Bordbar , S. M. Zebarjad

The equation of state of strange matter build of the u,d,s quarks in the framework of the MIT bag model is studied. The scaling relations with bag constant are discussed and applied to the determination of maximum frequency of a particle in…

天体物理学 · 物理学 2011-05-23 J. L. Zdunik

In this work, a new class of solution of the Einstein field equation for an isotropic strange star using the modified Mak-Harko type density profile along with the equation of state as proposed in the MIT bag model and considering finite…

广义相对论与量子宇宙学 · 物理学 2025-08-06 Rohit Roy , Debadri Bhattacharjee , Koushik Ballav Goswami , Pradip Kumar Chattopadhyay

This paper deals with the existence of a compact stellar object, precisely strange (quark) star, in the framework of Einstein's General Theory of Relativity with Tolman $V$ metric potential, which is one of the simplest forms of potential…

广义相对论与量子宇宙学 · 物理学 2020-04-23 Saibal Ray , Dibyendu Shee , Debabrata Deb , S. K. Maurya , M. K. Jasim

We estimate the constraints of observational mass and redshift on the properties of equations of state for quarks in the compact stars. We discuss two scenarios: strange stars and hybrid stars. We construct the equations of state utilizing…

天体物理学 · 物理学 2009-11-11 Nana Pan , Xiaoping Zheng

We have studied strange star properties both at zero temperature and at finite temperatures and searched signatures of strange stars in gamma-ray, x-ray and radio astronomy. We have a set of Equations of State (EoS) for strange quark matter…

天体物理学 · 物理学 2009-06-23 Manjari Bagchi , Subharthi Ray , Jishnu Dey , Mira Dey

We provide a strange star model under the framework of general relativity by using a general linear equation of state (EOS). The solution set thus obtained is employed on altogether 20 compact star candidates to constraint values of MIT bag…

广义相对论与量子宇宙学 · 物理学 2019-06-04 Abdul Aziz , Saibal Ray , Farook Rahaman , M. Khlopov , B. K. Guha

In this article we propose a new class of isotropic strange star using Buchdahl-I metric ansatz in the context of MIT bag model equation of state considering of non-zero strange quark mass $(m_{s})$ in the framework of modified $f(R,T)$…

广义相对论与量子宇宙学 · 物理学 2024-05-22 Debadri Bhattacharjee , Pradip Kumar Chattopadhyay

In this article, we attempt to find a singularity free solution of Einstein's field equations for compact stellar objects, precisely strange (quark) stars, considering Schwarzschild metric as the exterior spacetime. To this end, we consider…

广义相对论与量子宇宙学 · 物理学 2017-10-19 Debabrata Deb , Sourav Roy Chowdhury , Saibal Ray , Farook Rahaman , B. K. Guha

The properties of electrically charged strange quark stars predicted by an interacting quark matter equation of state (EoS) based on cold and dense perturbative quantum chromodynamics (pQCD) are investigated. The stability of strange stars…

高能物理 - 唯象学 · 物理学 2020-09-02 V. P. Goncalves , L. Lazzari
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