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We investigate the effects of non-Newtonian gravity on the properties of strange quark stars (QSs) and constrain the parameters of the standard MIT bag model used to describe strange quark matter (SQM) by employing the mass of PSR…

High Energy Astrophysical Phenomena · Physics 2020-10-14 Shu-Hua Yang , Chun-Mei PI , Xiao-Ping Zheng , Fridolin Weber

It is shown that strange quark matter (SQM) objects, stars, and planets, can very efficiently convert the mechanical energy into hadronic energy when they oscillate. This is because the mass density at the edge of SQM objects,…

High Energy Astrophysical Phenomena · Physics 2020-07-22 Marek Kutschera , Łukasz Bratek , Joanna Jałocha , Sebastian Kubis , Tomasz Kędziorek

This paper investigates the properties of strongly coupled matter at high baryon densities (\(\rho_B\)) in quark stars (QSs). The QS model is based on the density-dependent quark mass (DDQM) framework, modified (MDDQM) by enhancing the…

The effect of strong magnetic field on the stability and gross properties of bulk as well as quasi-bulk quark matter has been investigated using the conventional MIT bag model. Both the Landau diamagnetism and the paramagnetism of quark…

High Energy Physics - Phenomenology · Physics 2011-05-05 Somenath Chakrabarty

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

By using the recent nonperturbative equation of state of the quark gluon plasma derived in the formalism of the Field Correlator Method, we investigate the bulk properties of the strange quark matter in beta-equilibrium and with charge…

High Energy Physics - Phenomenology · Physics 2015-06-11 F. I. M. Pereira

In this work, we investigate the structure and gravitational wave (GW) signatures of strongly magnetized, oblate spheroidal quark stars by employing an anisotropic equation of state (EoS) derived from the MIT Bag model, extended to include…

Solar and Stellar Astrophysics · Physics 2025-11-07 Rajasmita Sahoo , Arunkarthiheyan Thiyagarajan , Asutosh Panda , Somnath Mukhopadhyay

Strange stars ought to exist in the universe according to the strange quark matter hypothesis, which states that matter made of roughly equal numbers of up, down, and strange quarks could be the true ground state of baryonic matter rather…

High Energy Astrophysical Phenomena · Physics 2023-04-20 Shu-Hua Yang , Chun-Mei Pi , Xiao-Ping Zheng , Fridolin Weber

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…

General Relativity and Quantum Cosmology · Physics 2017-11-20 Mehedi Kalam , Anisul Ain Usmani , Farook Rahaman , Sk. Monowar Hossein , Indrani Karar , Ranjan Sharma

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 purpose of our present work is to investigate some new features of a static anisotropic relativistic hybrid compact star composed of strange quark matter (SQM) in the inner core and normal baryonic matter distribution in the crust. Here…

General Relativity and Quantum Cosmology · Physics 2024-03-21 Pramit Rej , Piyali Bhar

We study effects of the strange quark mass and of the QCD coupling constant in the MIT bag model of quark matter with lowest order quark-gluon interactions on the rapid rotation of strange stars. The influence of rotation on global…

Astrophysics · Physics 2007-05-23 D. Gondek-Rosinska , P. Haensel , J. L. Zdunik , E. Gourgoulhon

After a brief non technical introduction of the basic properties of strange quark matter (SQM) in compact stars, we consider some of the late important advances in the field, and discuss some recent astrophysical observational data that…

General Relativity and Quantum Cosmology · Physics 2016-11-15 I. Bombaci

The ground state of matter may be strange quark matter (SQM), not hadronic matter. A whole sequence of SQM objects, ranging from strange quark stars and strange quark dwarfs to strange quark planets, can stably exist according to this SQM…

Solar and Stellar Astrophysics · Physics 2022-07-04 Abdusattar Kurban , Yong-Feng Huang , Jin-Jun Geng , Hong-Shi Zong

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 have performed the leading order perturbative calculation to obtain the equation of state (EoS) of the strange quark matter (SQM) at zero temperature under the magnetic field B = 10^18 G. The SQM comprises two massless quark flavors (up…

High Energy Physics - Phenomenology · Physics 2022-04-11 J. Sedaghat , S. M. Zebarjad , G. H. Bordbar , B. Eslam Panah

We construct an equation of state of strange quark matter in strong magnetic field within a confining model. The confinement is modeled by means of the Richardson potential for quark-quark interaction modified suitably to account for strong…

High Energy Astrophysical Phenomena · Physics 2013-08-02 Monika Sinha , Xu-Guang Huang , Armen Sedrakian

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

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

By means of the quark mass density- and temperature- dependent model, it is found that the negative charge and the higher strangeness fraction are in favor of the stability of strange quark matter at finite temperature. A critical baryon…

Nuclear Theory · Physics 2007-05-23 Y. Zhang