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Related papers: Proto-Strange Quark Star Structure

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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…

High Energy Physics - Phenomenology · Physics 2020-09-02 V. P. Goncalves , L. Lazzari

Models of neutron and strange stars are considered in the approximation of a uniform density distribution. A universal algebraic equation, valid for any equation of state, is used to find the approximate mass of a star of a given density…

High Energy Astrophysical Phenomena · Physics 2026-01-13 G. S. Bisnovatyi-Kogan , E. A. Patraman

The equation of state of de-confined quark matter within the MIT bag model is calculated. This equation of state is used to compute the structure of a neutron star with quark core. It is found that the limiting mass of the neutron star is…

Astrophysics · Physics 2010-11-05 G. H. Bordbar , M. Bigdeli , T. Yazdizadeh

The previous thermodynamic treatment for models with density and/or temperature dependent quark masses is shown to be inconsistent with the requirement of fundamental thermodynamics. We therefore study a fully self-consistent one according…

High Energy Physics - Phenomenology · Physics 2014-06-03 C. J. Xia , G. X. Peng , S. W. Chen , Z. Y. Lu , J. F. Xu

Because of the mass density-dependence, an extra term should be added to the expression of pressure. However, it should not appear in that of energy according to both the general ensemble theory and basic thermodynamic principle. We give a…

High Energy Physics - Phenomenology · Physics 2009-10-31 G. X. Peng , H. C. Chiang , P. Z. Ning

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…

General Relativity and Quantum Cosmology · Physics 2019-06-04 Abdul Aziz , Saibal Ray , Farook Rahaman , M. Khlopov , B. K. Guha

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…

General Relativity and Quantum Cosmology · Physics 2018-04-23 Debabrata Deb , Farook Rahaman , Saibal Ray , B. K. Guha

In this work, we have first obtained the hydrostatic equilibrium equation in dilaton gravity. Then we have examined some of the structural characteristics of strange quark star in dilaton gravity with a background of Einstein gravity. We…

General Relativity and Quantum Cosmology · Physics 2019-06-19 A. R. Peivand , K. Naficy , G. H. Bordbar

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,…

High Energy Astrophysical Phenomena · Physics 2025-01-30 J. Sedaghat , G. H. Bordbar , S. M. Zebarjad

We present the first fully relativistic numerical calculations of differentially rotating Strange Quark Stars models for broad ranges of the maximum density and of the degree of differential rotation. Our simulations are performed with the…

High Energy Astrophysical Phenomena · Physics 2019-07-10 Magdalena Szkudlarek , Dorota Gondek-Rosińska , Loïc Villain , Marcus Ansorg

A class of strange star is analyzed in the present article in hydrostatic equilibrium whose state is defined by a CFL phase equation of state. We compare our result with those obtained from MIT bag equation of state for strange quark matter…

General Relativity and Quantum Cosmology · Physics 2023-04-05 K. B. Goswami , A. Saha , P. K. Chattopadhyay , S. Karmakar

We have discussed dynamical behavior of strange quark matter components, in particular the effects of density dependent quark mass on the equation of state of strange quark matter. Dynamical masses of quarks have been computed within…

Solar and Stellar Astrophysics · Physics 2015-06-03 G. H. Bordbar , B. Ziaei

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 $f(R,T)$…

General Relativity and Quantum Cosmology · Physics 2024-05-22 Debadri Bhattacharjee , Pradip Kumar Chattopadhyay

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 $\lambda(r)=\ln(1+ar^2+br^4)$…

General Relativity and Quantum Cosmology · Physics 2020-06-03 Suparna Biswas , Dibyendu Shee , B. K. Guha , Saibal Ray

Calculations of the properties of rotating strange stars with crusts are performed within the framework of general relativity. We employ an equation of state (EOS) of strange quark matter based on the MIT Bag Model with massive strange…

Astrophysics · Physics 2014-10-13 J. L. Zdunik , P. Haensel , E. Gourgoulhon

The influence of the anisotropy in the equilibrium and stability of strange stars is investigated through the numerical solution of the hydrostatic equilibrium equation and the radial oscillation equation, both modified from their original…

High Energy Astrophysical Phenomena · Physics 2017-06-30 José D. V. Arbañil , M. Malheiro

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…

General Relativity and Quantum Cosmology · Physics 2021-03-02 Ayan Banerjee , Takol Tangphati , Phongpichit Channuie

In this paper, we investigate the evolution of strange quark stars (SQS) from birth as proto-strange quark stars to maturity as stable SQSs at a zero temperature. We assume that self-bound free quarks form {entirely the compact} star and…

Nuclear Theory · Physics 2024-04-19 Adamu Issifu , Franciele M. da Silva , Débora P. Menezes

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…

General Relativity and Quantum Cosmology · Physics 2017-10-19 Debabrata Deb , Sourav Roy Chowdhury , Saibal Ray , Farook Rahaman , B. K. Guha

We compute the equation of state (EoS) of strange quark stars (SQSs) with the MIT Bag model using density dependent bag pressure, characterized by a Gaussian distribution function. The bag pressure's density dependence is controlled by…

Nuclear Theory · Physics 2023-11-23 Soumen Podder , Suman Pal , Debashree Sen , Gargi Chaudhuri