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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…

High Energy Astrophysical Phenomena · Physics 2025-02-25 Prashant Thakur

The tidal deformability and the radius of neutron stars are observables, which have been used to constrain the neutron star equation of state and explore the composition in neutron stars. We investigated the radius and tidal deformability…

High Energy Astrophysical Phenomena · Physics 2024-09-06 Hongyi Sun , Dehua Wen

The current observational properties of neutron stars have not definitively ruled out the possibility of dark matter. In this study, we primarily focus on exploring correlations between the dark matter model parameters and different neutron…

High Energy Physics - Phenomenology · Physics 2023-08-02 Prashant Thakur , Tuhin Malik , Arpan Das , T. K. Jha , Constança Providência

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…

General Relativity and Quantum Cosmology · Physics 2021-11-09 Ben Kain

We study the effects of dark matter on the structural properties of neutron stars. In particular we investigate how the presence of a dark matter component influences the mass-radius relation, the value of the maximum mass of a neutron star…

High Energy Astrophysical Phenomena · Physics 2025-05-29 Domenico Scordino , Ignazio Bombaci

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…

Nuclear Theory · Physics 2024-10-23 Hong-Ming Liu , Jin-Biao Wei , Zeng-Hua Li , G. F. Burgio , H. C. Das , H. -J. Schulze

We investigate the impact of dark matter on neutron star properties using the relativistic mean-field theory. By incorporating the dark matter model, we explore how dark matter parameters, specifically dark matter mass and Fermi momentum,…

High Energy Astrophysical Phenomena · Physics 2024-08-29 Ankit Kumar , Hajime Sotani

The dark matter in neutron stars can exist from the lifetime of the progenitor or captured by this compact object. The properties of dark matter entered the neutron stars through each step could be different from each other. Here, we…

High Energy Astrophysical Phenomena · Physics 2019-03-01 Zeinab Rezaei

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…

Solar and Stellar Astrophysics · Physics 2014-02-20 Qian-Fei Xiang , Wei-Zhou Jiang , Dong-Rui Zhang , Rong-Yao Yang

The tidal properties of a neutron star are measurable in the gravitational waves emitted from inspiraling binary neutron stars, and they have been used to constrain the neutron star equation of state. In the same spirit, we study the…

High Energy Astrophysical Phenomena · Physics 2022-07-07 Kwing-Lam Leung , Ming-Chung Chu , Lap-Ming Lin

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…

High Energy Physics - Phenomenology · Physics 2024-01-17 Prashant Thakur , Tuhin Malik , T. K. Jha

We systematically investigate the fundamental oscillation frequencies of dark matter admixed neutron stars, focusing on models with self-interacting fermionic dark matter that couples to normal matter solely through gravity. The analysis is…

High Energy Astrophysical Phenomena · Physics 2026-02-24 Hajime Sotani , Ankit Kumar

We studied the properties of dark matter admixed-neutron stars (DMANS), considering fermionic dark matter (DM) that interacts gravitationally with hadronic matter (HM). Using relativistic mean-field equations of state (EoSs) for both…

High Energy Astrophysical Phenomena · Physics 2025-07-17 Payaswinee Arvikar , Sakshi Gautam , Anagh Venneti , Sarmistha Banik

Gravitational-wave observations provide a unique window into the fundamental nature of massive objects. In particular, neutron star equations of state have been constrained due to the success of gravitational wave observatories. Recently,…

High Energy Astrophysical Phenomena · Physics 2025-08-06 Nguyen Thi Lan Anh , Peter Lott , Quynh Lan Nguyen

Because of their extreme densities and consequently, gravitational potential, compact objects such as neutron stars can prove to be excellent captors of dark matter particles. Considering purely gravitational interactions between dark and…

High Energy Astrophysical Phenomena · Physics 2025-01-22 Pratik Thakur , Anil Kumar , Vivek Baruah Thapa , Vishal Parmar , Monika Sinha

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…

Nuclear Theory · Physics 2024-10-23 Hong-Ming Liu , Jin-Biao Wei , Zeng-Hua Li , G. F. Burgio , H. -J. Schulze

We study the effects of dark matter on the properties of hybrid neutron stars, in particular the influence on the mass-radius relation, the value of the maximum mass, and the hadron-quark phase transition. To single out the equilibrium…

Nuclear Theory · Physics 2026-02-16 Jin-Biao Wei , G. Wu , H. Chen , G. F. Burgio , H. -J. Schulze

In this study, we investigate the impacts of dark matter (DM) on the properties of both static and rotating neutron stars utilizing a self-interacting DM model, motivated by the neutron decay anomaly. DM-admixed NSs are modeled by assuming…

High Energy Astrophysical Phenomena · Physics 2025-09-15 Pinku Routaray , Abirbhav Chakrawarty , N. K. Patra , Bharat Kumar

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…

Nuclear Theory · Physics 2023-05-04 H. C. Das

Dark matter is hypothesized to interact with ordinary matter solely through gravity and may be present in compact objects such as strange quark stars. We treat strange quark stars admixed with dark matter as two-fluid systems to investigate…

High Energy Astrophysical Phenomena · Physics 2025-04-22 Yida Yang , Chen Wu , Ji-Feng Yang
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