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In the present paper, we treat the problem of the existence of quark stars (QSs) for selected homogeneous and unpaired charge-neutral $3$-flavor interacting quark matter with $\mathcal{O}(m_s^4)$ corrections equations of state (EoS). Using…

General Relativity and Quantum Cosmology · Physics 2021-06-02 Grigoris Panotopoulos , Takol Tangphati , Ayan Banerjee , M. K. Jasim

It is demonstrated that finite-pressure, approximately quasi-axisymmetric stellarator equilibria can be directly constructed (without numerical optimization) via perturbations of given axisymmetric equilibria. The size of such perturbations…

Plasma Physics · Physics 2022-06-22 G. G. Plunk

This research paper investigates the impact of non-metricity and matter source on the geometry of charged spheres in the presence of anisotropic matter configuration. We use a specific model of extended symmetric teleparallel theory to…

General Relativity and Quantum Cosmology · Physics 2024-12-03 M. Zeeshan Gul , Faisal Javed , M. Sharif , Shalan Alkarni

We present here a detailed analysis on the effects of charge on the anisotropic strange star candidates by considering a spherically symmetric interior spacetime metric. To obtain exact solution of the Einstein-Maxwell field equations we…

General Relativity and Quantum Cosmology · Physics 2018-07-04 Debabrata Deb , Maxim Khlopov , Farook Rahaman , Saibal Ray , B. K. Guha

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

Using an axisymmetric numerical code, we perform an extensive study of the magnetic field configurations in non-rotating neutron stars, varying the mass, magnetic field strength and the equation of state. We find that the monopolar…

Nuclear Theory · Physics 2019-06-12 Debarati Chatterjee , Jerome Novak , Micaela Oertel

We review the stability of magnetized strange quark matter (MSQM) within the phenomenological MIT bag model, taking into account the variation of the relevant input parameters, namely, the strange quark mass, baryon density, magnetic field…

High Energy Astrophysical Phenomena · Physics 2015-05-18 A. Perez Martinez , R. Gonzalez Felipe , D. Manreza Paret

In this paper, we study the impact of anisotropy on neutron stars with different equations of state, which have been modeled by a piecewise polytropic function with continuous sound speed. Anisotropic pressure in neutron stars is often…

High Energy Astrophysical Phenomena · Physics 2024-01-22 L. M. Becerra , E. A. Becerra-Vergara , F. D. Lora-Clavijo

We investigate how gravitational wave (GW) observations can probe the internal physics of neutron stars by extending the Tolman-Oppenheimer-Volkoff framework to include pressure anisotropy and internal magnetic fields. Two representative…

High Energy Astrophysical Phenomena · Physics 2025-12-04 Zhao-Wei Du , Xi-Long Fan

The effect of magnetic fields on the frequencies of toroidal oscillations of neutron stars is derived to lowest order. Interpreting the fine structure in the QPO power spectrum of magnetars following giant flares reported by Strohmayer and…

High Energy Astrophysical Phenomena · Physics 2009-08-17 R. Shaisultanov , D. Eichler

We study the effect of a magnetic field on the strage quark matter and apply to strange star. We found that the strange star becomes more compact in presence of strong magnetic field.

High Energy Physics - Phenomenology · Physics 2009-10-28 S. Chakrabarty , P. K. Sahu

In this work, we compute the structure and composition of the inner crust of a neutron star in the presence of a strong magnetic field, such as it can be found in magnetars. To determine the geometry and characteristics of the crust…

Nuclear Theory · Physics 2023-05-01 Luigi Scurto , Helena Pais , Francesca Gulminelli

Strange metals exhibit a variety of anomalous magnetotransport properties, the most striking of which is a resistivity that increases linearly with magnetic field $B$ over a broad temperature and field range. The ubiquity of this behavior…

Strongly Correlated Electrons · Physics 2024-10-22 R. D. H. Hinlopen , F. A. Hinlopen , J. Ayres , N. E. Hussey

Understanding the properties of the internal magnetic field of neutron stars remains a theoretical challenge. Over the last years, twisted-torus geometries have been considered both in Newtonian and general-relativistic equilibrium models,…

Solar and Stellar Astrophysics · Physics 2013-09-20 Riccardo Ciolfi , Luciano Rezzolla

By introducing Dirac ?-function in superhigh magnetic field, we deduce a general formula for pressure of degenerate and relativistic electrons, Pe, which is suitable for superhigh magnetic fields, discuss the quantization of Landau levels…

High Energy Physics - Phenomenology · Physics 2015-11-16 Z. F. Gao , N. Wang , Y. Xu , H. Shan , X. D. Li

The surface tension of quark matter in a strong magnetic field is investigated using a geometric approach. The interface between the hadronic phase and quark phase is determined by the Maxwell construction of the first-order transition.…

High Energy Physics - Phenomenology · Physics 2025-03-14 Yu-Ying He , Xin-Jian Wen

We study a specific model of anisotropic strange stars in the modified $f\left(R,\mathcal{T}\right)$-type gravity by deriving solutions to the modified Einstein field equations representing a spherically symmetric anisotropic stellar…

General Relativity and Quantum Cosmology · Physics 2019-05-01 Debabrata Deb , Sergei V. Ketov , S. K. Maurya , Maxim Khlopov , P. H. R. S. Moraes , Saibal Ray

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 stably stratified stars, numerical magneto-hydrodynamics simulations have shown that arbitrary initial magnetic fields evolve into stable equilibrium configurations, usually containing nearly axisymmetric, linked poloidal and toroidal…

Solar and Stellar Astrophysics · Physics 2015-06-23 J. P. Mitchell , J. Braithwaite , A. Reisenegger , H. Spruit , J. A. Valdivia , N. Langer

This paper investigates some physical features that give rise to complexity within the self-gravitating static cylindrical structure coupled with anisotropic distribution in the energy-momentum squared gravity. To accomplish this, we…

General Relativity and Quantum Cosmology · Physics 2022-10-12 M. Sharif , Ayesha Anjum