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Related papers: Proto-Strange Quark Star Structure

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In this article we have calculated the structure properties of a strange quark star in static model in the presence of a strong magnetic field using MIT bag model with a density dependent bag constant. To parameterize the density dependence…

High Energy Physics - Phenomenology · Physics 2015-06-04 Gholam Hossein Bordbar , Hajar Bahri , Fatemeh Kayanikhoo

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…

General Relativity and Quantum Cosmology · Physics 2026-03-17 Sourav Biswas , Debadri Bhattacharjee , Pradip Kumar Chattopadhyay , Nawal H. Siddig , Euaggelos E. Zotos , Laila Abdulaziz Al-Essa

In the present work, we study about highly dense compact stars which are made of quarks, specially strange quarks, adopting the Krori-Barua (KB)~\cite{Krori1975} metric in the framework of $f(R,T)$ gravity. The equation of state (EOS) of a…

General Relativity and Quantum Cosmology · Physics 2018-12-31 Suparna Biswas , Shounak Ghosh , B. K. Guha , F. Rahaman , Saibal Ray

We investigate the thermodynamic properties of strange quark matter under the strong magnetic field in the framework of the MIT bag model in two cases of bag constants. We consider two cases of the magnetic field, the uniform magnetic field…

Nuclear Theory · Physics 2020-04-10 Fatemeh Kayanikhoo , Kazem Naficy , Gholam Hossein Bordbar

We have studied strange quark stars in the framework of the MIT bag model, allowing the bag parameter B to depend on the density of the medium. We have also studied the effect of Cooper pairing among quarks, on the stellar structure.…

Astrophysics · Physics 2009-11-10 Nirvikar Prasad , R. S. Bhalerao

The effect of magnetic field on the structure properties of hot spin polarized strange quark stars has been investigated. For this purpose, we use the MIT bag model with a density dependent bag constant to calculate the thermodynamic…

Solar and Stellar Astrophysics · Physics 2015-06-18 G. H. Bordbar , Z. Alizade

We have considered a hot strange star matter, just after the collapse of a supernova, as a composition of strange, up and down quarks to calculate the bulk properties of this system at finite temperature with the density dependent bag…

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

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…

Astrophysics · Physics 2009-11-10 Yu. L. Vartanyan , A. K. Grigoryan , T. R. Sargsyan

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…

Astrophysics · Physics 2009-11-11 Nana Pan , Xiaoping Zheng

Exact models of uniformly rotating strange stars, built of self bound quark matter, are calculated within the framework of general relativity. This is made possible thanks to a new numerical technique capable to handle the strong density…

Astrophysics · Physics 2010-11-19 E. Gourgoulhon , P. Haensel , R. Livine , E. Paluch , S. Bonazzola , J. A. Marck

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…

Astrophysics · Physics 2009-11-11 D. P. Menezes , D. B. Melrose

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…

Astrophysics · Physics 2011-05-23 J. L. Zdunik

As we go from center toward the surface of a neutron star, the state of baryonic matter changes from the de-confined quark-gluon to a mixed phase of quark and hadronic matter, and a thin crust of hadronic matter. For the quark matter,…

Solar and Stellar Astrophysics · Physics 2015-06-15 T. Yazdizadeh , G. H. Bordbar

We compute the maximum mass of moderately rotating strange stars as a function of the strange quark mass, of the QCD coupling constant, $\alpha_c$, and of the bag constant (vacuum energy density), $B$, in the MIT bag model of quark matter…

Astrophysics · Physics 2007-05-23 J. L. Zdunik , T. Bulik , W. Kluźniak , P. Haensel , D. Gondek-Rosinska

The hydrostatic equilibrium and the stability against radial perturbation of charged strange quark stars composed of a charged perfect fluid are studied. For this purpose, it is considered that the perfect fluid follows the MIT bag model…

Solar and Stellar Astrophysics · Physics 2017-06-30 José D. V. Arbañil , M. Malheiro

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…

Astrophysics · Physics 2009-06-23 Manjari Bagchi , Subharthi Ray , Jishnu Dey , Mira Dey

We investigate the structural parameters of strange quark stars (SQS) under the influence of strong magnetic fields and varying rotational frequencies. The equation of state is computed using the MIT bag model with a density-dependent bag…

High Energy Astrophysical Phenomena · Physics 2026-01-15 Fatemeh Kayanikhoo , Mateusz Kapusta , Miljenko Čemeljić , Leszek 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…

General Relativity and Quantum Cosmology · Physics 2025-08-06 Rohit Roy , Debadri Bhattacharjee , Koushik Ballav Goswami , Pradip Kumar Chattopadhyay

A quark model with running coupling and running strange quark mass, which is thermodynamically self-consistent at both high and lower densities, is presented and applied to study properties of strange quark matter and structure of compact…

High Energy Physics - Phenomenology · Physics 2015-12-29 J. F. Xu , G. X. Peng , F. Liu , D. F. Hou , L. W. Chen

In this work a density dependent quark model is revisited, its thermodynamic consistency checked and the stability window for absolutely stable quark matter obtained. The hypotheses of both pure quark matter with equal quark chemical…

High Energy Physics - Phenomenology · Physics 2021-05-26 B. C. Backes , E. Hafemann , I. Marzolla , D. P. Menezes
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