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We study stable spheroidal configurations of magnetized Strange Stars using an axially symmetric metric in spherical coordinates that uses a gamma parameter to link the anisotropy in the Equation of State due to the magnetic field with the…

We study the emission of gravitational waves from spheroidal magnetized strange stars for both an isolated slowly rotating star and a binary system. In the first case, we compute the quadrupole moment and the amplitude of gravitational…

广义相对论与量子宇宙学 · 物理学 2024-02-01 S. López Pérez , D. Manreza Paret , A. Pérez Martínez

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…

高能天体物理现象 · 物理学 2026-01-15 Fatemeh Kayanikhoo , Mateusz Kapusta , Miljenko Čemeljić , Leszek Zdunik

Compact objects have an intrinsic anisotropy due to the presence of strong magnetic fields that cause considerable modifications on the equations of state (EoS). In this work, we study the impact of this anisotropy in the size and shape of…

广义相对论与量子宇宙学 · 物理学 2020-02-05 S. López Pérez , D. Manreza Paret , G. Quintero Angulo , A. Pérez Martínez , D. Alvear Terrero

The main objective of this work is to study the structure, composition, and oscillation modes of color superconducting quark stars with intense magnetic fields. We adopted the MIT bag model within the color superconductivity CFL framework,…

高能天体物理现象 · 物理学 2022-05-18 Marcos Osvaldo Celi , Mauro Mariani , Milva Gabriela Orsaria , Lucas Tonetto

We investigate anisotropic quark stars within the context of energy-momentum squared gravity (EMSG), assuming the internal composition consists of homogeneous, charge-neutral 3-flavor interacting quark matter with ${\cal O}(m_s^4)$…

广义相对论与量子宇宙学 · 物理学 2023-10-02 Qian Li , Xianming Liu , Ruijun Tang , Jiayong Xiao

Possessing the strongest magnetic fields in the Universe, magnetars mark an extremum of physical phenomena. The strength of their magnetic fields is sufficient to deform the shape of the stellar body, and when the rotational and magnetic…

太阳与恒星天体物理 · 物理学 2021-03-17 Samuel G. Frederick , Kristen L. Thompson , Michelle P. Kuchera

Within the confined isospin- and density-dependent mass model, we study the properties of strange quark matter (SQM) and quark stars (QSs) under strong magnetic fields. The equation of state of SQM under a constant magnetic field is…

核理论 · 物理学 2014-10-01 Peng-Cheng Chu , Lie-Wen Chen , Xin Wang

The recent discovery of gravitational waves (GWs) has opened a new avenue for investigating the equation of state (EOS) of dense matter in compact stars, which is an outstanding problem in astronomy and nuclear physics. In the future,…

高能天体物理现象 · 物理学 2024-11-26 Ziming Wang , Yong Gao , Dicong Liang , Junjie Zhao , Lijing Shao

We study the structure and total energy of a strange quark star (SQS) endowed with a strong magnetic field with different rotational frequencies. The MIT bag model is used, with the density-dependent bag constant for the equation of state…

高能天体物理现象 · 物理学 2023-05-08 Fatemeh Kayanikhoo , Mateusz Kapusta , Miljenko Čemeljić

The structure and stability of quark stars (QSs) made of interacting quark matter are discussed in this study, taking color superconductivity and perturbative QCD corrections into account. By combining this EoS with the…

高能物理 - 理论 · 物理学 2025-06-12 Takol Tangphati , İzzet Sakallı , Ayan Banerjee , Anirudh Pradhan

This study explores the properties of quark stars (QS) formulated with an interacting quark matter equation of state (EoS) within the framework of Rastall gravity, a modified theory of gravity. We derive the mass-radius relationships and…

广义相对论与量子宇宙学 · 物理学 2024-12-13 Ayan Banerjee , Anirudh Pradhan , Izzet Sakalli , Archana Dixit

The masses and radii of strongly magnetized anisotropic deformed white dwarf stars are investigated using the stellar structure equations in the parameterized $\gamma$-metric formalism. The Equation of State (EoS) of a completely degenerate…

太阳与恒星天体物理 · 物理学 2024-02-06 Rajasmita Sahoo , Tambe Pranjal Anant , Somnath Mukhopadhyay

This work elaborates on a detailed analysis of the novel characteristics of gravitational waves (GWs) generated by extreme mass ratio inspirals (EMRIs) within the framework of modified gravity (MOG). Our study begins by exploring the…

广义相对论与量子宇宙学 · 物理学 2024-08-20 Xiongying Qiao , Zhong-Wu Xia , Qiyuan Pan , Hong Guo , Wei-Liang Qian , Jiliang Jing

The LIGO/VIRGO detection of the gravitational waves from a binary merger system, GW170817, has put a clean and strong constraint on the tidal deformability of the merging objects. From this constraint, deep insights can be obtained in…

高能天体物理现象 · 物理学 2018-05-02 Enping Zhou , Xia Zhou , Ang Li

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…

广义相对论与量子宇宙学 · 物理学 2021-06-02 Grigoris Panotopoulos , Takol Tangphati , Ayan Banerjee , M. K. Jasim

We discuss the possibility that the detection of gravitational waves emitted by compact stars may allow to constrain the MIT bag model of quark matter equation of state. Our results show that the combined knowledge of the frequency of the…

天体物理学 · 物理学 2008-11-26 Omar Benhar , Valeria Ferrari , Leonardo Gualtieri , Stefania Marassi

We investigate the properties of anisotropic, spherically symmetric compact stars, especially neutron stars and strange quark stars, made of strongly magnetized matter. The neutron stars are described by SLy equation of state, the strange…

高能天体物理现象 · 物理学 2021-12-08 Debabrata Deb , Banibrata Mukhopadhyay , Fridolin Weber

The structure of a magnetized quark-hybrid stars (QHS) is modeled using a standard relativistic mean-field equation of state (EoS) for the description of hadronic matter. For quark matter we consider a bag model EoS which is modified…

高能天体物理现象 · 物理学 2015-05-28 M. Orsaria , Ignacio F. Ranea-Sandoval , H. Vucetich , F. Weber

There has been a growing interest within the astrophysics community in highly magnetized and fast-spinning white dwarfs (WDs), commonly referred to as HMWDs. WDs with these characteristics are quite uncommon and possess magnetic fields…

太阳与恒星天体物理 · 物理学 2024-12-20 M. F. Sousa , E. Otoniel , J. G. Coelho , J. C. N. de Araujo
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