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Related papers: Proto-Strange Quark Star Structure

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In this paper, we have calculated the thermodynamic properties of spin polarized strange quark matter at finite temperature in the presence of a strong magnetic field using MIT bag model. We have also computed the equation of state of spin…

Solar and Stellar Astrophysics · Physics 2013-05-28 G. H. Bordbar , F. Kayanikhoo , H. Bahri

We calculate the equation of state of strange quark matter and the interior structure of strange quark stars in a Dyson-Schwinger quark model within rainbow or Ball-Chiu vertex approximation. We emphasize constraints on the parameter space…

Solar and Stellar Astrophysics · Physics 2017-03-28 H. Chen , J. -B Wei , H. -J. Schulze

In this paper, we develop a model for a static anisotropic hybrid star that includes strange quark matter and hadronic matter. We solve the field equations in the $f(Q)$ gravity framework (where $Q$ is the non-metricity) using the…

General Relativity and Quantum Cosmology · Physics 2026-01-06 M. Sharif , Madiha Ajmal

In this work, we perform a comparative analysis between the density-dependent quark model and the vector MIT bag model using Bayesian analysis. We use the equations of state generated by these two models to describe quark stars. We impose…

We investigate the stability of strange quark matter and the properties of the cor- responding strange stars, within a wide range of quark mass scaling. The calculation shows that the resulting maximum mass always lies between 1.5M_{sun}…

Solar and Stellar Astrophysics · Physics 2010-07-29 A. Li

We reexamine the surface composition of strange stars. Strange quark stars are hypothetical compact stars which could exist if strange quark matter was absolutely stable. It is widely accepted that they are characterized by an enormous…

Nuclear Theory · Physics 2007-05-23 Prashanth Jaikumar , Sanjay Reddy , Andrew W. Steiner

Exact calculations of innermost stable circular orbit (ISCO) around rotating strange stars are performed within the framework of general relativity. Equations of state (EOS) of strange quark matter based on the MIT Bag Model with massive…

Astrophysics · Physics 2010-11-19 J. L. Zdunik , P. Haensel , D. Gondek-Rosinska , E. Gourgoulhon

In this article we study the hydrostatic equilibrium configuration of neutron stars and strange stars, whose fluid pressure is computed from the equations of state $p=\omega\rho^{5/3}$ and $p=0.28(\rho-4{\cal B})$, respectively, with…

General Relativity and Quantum Cosmology · Physics 2016-07-12 P. H. R. S. Moraes , José D. V. Arbañil , M. Malheiro

In the present paper, we report on a study of the anisotropic strange stars under Finsler geometry. Keeping in mind that Finsler spacetime is not merely a generalization of Riemannian geometry rather the main idea is the projectivized…

General Relativity and Quantum Cosmology · Physics 2020-03-18 Sourav Roy Chowdhury , Debabrata Deb , Farook Rahaman , Saibal Ray , B. K. Guha

The possible existence of strange stars in the universe will help in the understanding of various properties of quantum chromodynamics, like asymptotic freedom and chiral symmetry restoration, which is otherwise very difficult to prove in…

Astrophysics · Physics 2007-05-23 Manjari Bagchi , Subharthi Ray , Mira Dey , Jishnu Dey

We explore the consequences of an equation of state (EOS) obtained in a confining Dyson-Schwinger equation model of QCD for the structure and stability of nonstrange quark stars at finite-T, and compare the results with those obtained using…

Nuclear Theory · Physics 2010-03-04 D. Blaschke , H. Grigorian , G. Poghosyan , C. D. Roberts , S. Schmidt

In this work, we have calculated some properties of the spin polarized strange quark matter (SQM) in a strong magnetic field at zero temperature using the MIT bag model. We have shown that the equation of state of spin polarized SQM is…

Solar and Stellar Astrophysics · Physics 2015-05-27 G. H. Bordbar , A. Peivand

Some time ago we have derived from the QCD Lagrangian an equation of state (EOS) for the cold quark matter, which can be considered an improved version of the MIT bag model EOS. Compared to the latter, our equation of state reaches higher…

High Energy Physics - Phenomenology · Physics 2016-11-24 D. A. Fogaça , S. M. Sanches , T. F. Motta , F. S. Navarra

We derive a working model for the Tolman-Oppenheimer-Volkoff equation for quark star systems within the modified $f(T, \mathcal{T})$-gravity class of models. We consider $f(T, \mathcal{T})$-gravity for a static spherically symmetric…

General Relativity and Quantum Cosmology · Physics 2017-05-08 Mark Pace , Jackson Levi Said

Since the derivation of a well-defined $D\rightarrow 4$ limit for 4D Einstein Gauss-Bonnet (4DEGB) gravity coupled to a scalar field, there has been interest in testing it as an alternative to Einstein's general theory of relativity. Using…

General Relativity and Quantum Cosmology · Physics 2024-06-21 Michael Gammon , Sarah Rourke , Robert B. Mann

We investigate the stability of strange quark matter and the properties of the corresponding strange stars, within a wide range of quark mass scaling. The calculation shows that the resulting maximum mass always lies between 1.5 solor mass…

Solar and Stellar Astrophysics · Physics 2013-05-15 Ang Li , Ren-Xin Xu , Ju-Fu Lu

The description of the heaviest neutron stars observed in Nature depends on the understanding of the physical concepts present in General Relativity and Quantum Chromodynamics. In this work, we review the basic concepts need to describe…

High Energy Physics - Phenomenology · Physics 2020-08-11 V. P. Goncalves , L. Lazzari

We perform a systematic Bayesian analysis of quark star equations of state under current multimessenger constraints, investigating the impact of prior assumptions and extreme-mass observations. Quark matter is modeled within an interacting…

High Energy Astrophysical Phenomena · Physics 2026-01-13 Wen-Jie Xie , Cheng-Jun Xia , Chen Zhang , Renxin Xu

In this paper, we investigate the structure of neutron stars by considering both the effects of the cosmological constant and the existence of quark matter for neutron stars in Einstein's gravity. For this purpose, we use a suitable…

General Physics · Physics 2022-03-02 T. Yazdizadeh , G. H. Bordbar , B. Eslam Panah

Neutron star due to their high interior matter density are expected to be composed of a quark core, a mixed quark-hadron matter, and a layer of hadronic matter. Thus, in this paper, we compute the equation of state of these parts of neutron…

Nuclear Theory · Physics 2019-11-26 T. Yazdizadeh , G. H. Bordbar