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相关论文: Decoding Dark Matter Admixed Neutron Stars: From S…

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This thesis explores the effects of dark matter (DM) on neutron stars (NSs) using the relativistic mean-field (RMF) model. The effects of DM on NS properties, including the mass-radius relation, the moment of inertia, and tidal…

核理论 · 物理学 2023-05-04 H. C. Das

Over the past two decades, significant strides have been made in the study of Dark Matter (DM) admixed neutron stars and their associated properties. However, an intriguing facet regarding the effect of DM on magnetized neutron stars still…

高能天体物理现象 · 物理学 2023-10-04 Vishal Parmar , H. C. Das , M. K. Sharma , S. K. Patra

The effect of dark matter (DM) on $f$-mode oscillations in DM admixed neutron stars (NSs) is investigated in a comprehensive analysis with particular attention to the role of the nuclear equation of state. Hadronic matter is modeled by the…

广义相对论与量子宇宙学 · 物理学 2024-12-23 Swarnim Shirke , Bikram Keshari Pradhan , Debarati Chatterjee , Laura Sagunski , Jürgen Schaffner-Bielich

We investigate the effects of dark matter (DM) on neutron star (NS) properties using the neutron decay anomaly model within the relativistic mean-field (RMF) framework. Three nucleonic models (HCD0-HCD2) are developed, satisfying…

高能天体物理现象 · 物理学 2025-05-15 H. C. Das , G. F. Burgio

We investigate the structural and observable impacts of dark matter (DM) on neutron stars using a combined equation of state that integrates the relativistic mean field (RMF) model for baryonic matter with a variable density profile for DM,…

高能天体物理现象 · 物理学 2025-01-14 Ankit Kumar , Hajime Sotani

We propose a model of asymmetric bosonic dark matter (DM) with self-repulsion mediated by the vector field coupled to the complex scalar particles. By adopting the two-fluid formalism, we study different DM distribution regimes, either,…

高能天体物理现象 · 物理学 2023-08-15 Edoardo Giangrandi , Violetta Sagun , Oleksii Ivanytskyi , Constança Providência , Tim Dietrich

Within the relativistic mean-field model, we investigate the properties of dark matter (DM) admixed neutron stars, considering non-rotating objects made of isotropic matter. We adopt the IOPB-I hadronic equation of state (EOS) by assuming…

We study the interaction between dark matter (DM) and highly magnetized neutron stars (NSs), focusing on how DM particle mass, mass fraction, and magnetic field (MF) strength affect NS structure and stability. We consider self-interacting,…

核理论 · 物理学 2025-06-04 Pinku Routaray , Vishal Parmar , H. C. Das , Bharat Kumar , G. F. Burgio , H. -J. Schulze

We study the effects of dark matter on the properties of neutron stars by employing a DM-admixed model. The Brueckner-Hartree-Fock theory with realistic three-body forces and a generic bosonic self-interacting dark matter model describe the…

核理论 · 物理学 2024-10-23 Hong-Ming Liu , Jin-Biao Wei , Zeng-Hua Li , G. F. Burgio , H. -J. Schulze

In recent years, researchers have become increasingly interested in understanding how dark matter affects neutron stars, helping them to better understand complex astrophysical phenomena. In this paper, we delve deeper into this problem by…

高能物理 - 唯象学 · 物理学 2024-01-17 Prashant Thakur , Tuhin Malik , T. K. Jha

We systematically study the observable properties of dark-matter admixed neutron stars, employing a realistic nuclear EOS in combination with self-interacting fermionic dark matter respecting constraints on the self-interaction cross…

核理论 · 物理学 2024-10-23 Hong-Ming Liu , Jin-Biao Wei , Zeng-Hua Li , G. F. Burgio , H. C. Das , H. -J. Schulze

This work investigates the impact of mirror dark matter (DM) on the global properties of rotating neutron stars (NSs) across evolutionary stages, from hot, lepton-rich protoneutron stars (PNSs) to cold, catalyzed NSs along the…

高能天体物理现象 · 物理学 2025-10-27 Adamu Issifu , Andreas Konstantinou , Prashant Thakur , Tobias Frederico

The neutron star properties are generally determined by the equation of state of $\beta$-equilibrated dense matter. In this work, we consider the interaction of fermionic dark matter (DM) particles with the nucleons via Higgs exchange and…

高能天体物理现象 · 物理学 2022-01-19 H. C. Das , Ankit Kumar , Bharat Kumar , S. K. Patra

The presence of dark matter (DM) within neutron stars (NSs) can be introduced by different accumulation scenarios in which DM and baryonic matter (BM) may interact only through the gravitational force. In this work, we consider asymmetric…

高能天体物理现象 · 物理学 2024-03-05 Davood Rafiei Karkevandi , Mahboubeh Shahrbaf , Soroush Shakeri , Stefan Typel

We study possible effects of a dark matter (DM) core on the maximum mass of a neutron star (NS), on the mass-radius relation and on the NS tidal deformability parameter $\Lambda$. We show that all these quantities would in general be…

宇宙学与河外天体物理 · 物理学 2018-06-20 John Ellis , Gert Hütsi , Kristjan Kannike , Luca Marzola , Martti Raidal , Ville Vaskonen

By assuming that only gravitation exists between dark matter (DM) and normal matter (NM), we study the effects of fermionic DM on the properties of neutron stars using the two-fluid Tolman-Oppenheimer-Volkoff formalism. It is found that the…

太阳与恒星天体物理 · 物理学 2014-02-20 Qian-Fei Xiang , Wei-Zhou Jiang , Dong-Rui Zhang , Rong-Yao Yang

In this study, the impact of neutron decay into dark matter and various dark matter self-interaction strengths on neutron star properties have been explored. Using the quark-meson coupling (QMC) model for nucleon-only equations of state…

高能物理 - 唯象学 · 物理学 2026-01-05 Wasif Husain

The presence of Dark matter (DM) within a neutron star (NS) can substantially influence the macroscopic properties. It is commonly assumed that the pressure inside an NS is isotropic, but in reality, pressure is locally anisotropic. This…

宇宙学与河外天体物理 · 物理学 2025-12-12 Premachand Mahapatra , Chiranjeeb Singha , Ayush Hazarika , Prasanta Kumar Das

This thesis investigates the impact of dark matter on neutron star properties, focusing on mass, radius, and tidal deformability. Using two-fluid and single-fluid models, dark matter is incorporated into the equation of state (EOS) via a…

高能天体物理现象 · 物理学 2025-02-25 Prashant Thakur

Neutron stars could contain a mixture of ordinary nuclear matter and dark matter, such that dark matter could influence observable properties of the star, such as its mass and radius. We study these dark matter admixed neutron stars for two…

广义相对论与量子宇宙学 · 物理学 2021-11-09 Ben Kain
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