English
Related papers

Related papers: Probing fermionic asymmetric dark matter cores usi…

200 papers

We present a comprehensive study of compact stars admixed with non-self annihilating self-interacting fermionic dark matter, delineating the dependence on the nuclear equation of state by considering the two limiting parametrized equations…

High Energy Astrophysical Phenomena · Physics 2025-05-16 Mikel F. Barbat , Jürgen Schaffner-Bielich , Laura Tolos

We investigate the effects of the ALP-mediated dark matter (DM) model on neutron star properties using the Quantum Hadrodynamics model (QHD). Using the relativistic mean-field approximation with the QHD-ALP-DM framework, we compute the…

High Energy Astrophysical Phenomena · Physics 2025-08-20 Tanech Klangburam , Chakrit Pongkitivanichkul

In this work we investigate the properties of neutron stars admixed with selfinteracting scalar bosonic dark matter. The dark matter interaction is described by a generalized $\phi^n$ power-law potential. We perform a stability analysis of…

High Energy Astrophysical Phenomena · Physics 2024-12-11 Sarah Louisa Pitz , Jürgen Schaffner-Bielich

We investigate the properties of fermion-boson stars (FBSs), which can be viewed as neutron stars with a bosonic dark matter (DM) admixture. A challenge in studying the impact of DM on neutron stars is the absence of a universally accepted…

High Energy Astrophysical Phenomena · Physics 2025-10-21 Kelvin Ka-Ho Lam , Lap-Ming Lin

The formulation of quarkyonic matter consists of treating both quarks and nucleons as quasi-particles, where a cross-over transition occurs between the two phases. This work is based upon some of the early ideas of quark matter. It can…

High Energy Astrophysical Phenomena · Physics 2025-08-07 D. Dey , Jeet Amrit Pattnaik , H. C. Das , A. Kumar , R. N. Panda , S. K. Patra

In this work, we study the impact of asymmetric dark matter (ADM) on low-mass main-sequence stars in the Milky Way's nuclear star cluster, where the dark matter (DM) density is expected to be orders of magnitude above what is found near the…

Solar and Stellar Astrophysics · Physics 2019-07-15 José Lopes , Ilídio Lopes

We study an impact of asymmetric dark matter on properties of the neutron stars and their ability to reach the two solar masses limit, which allows us to present a new range of masses of dark matter particles and their fractions inside the…

High Energy Astrophysical Phenomena · Physics 2020-10-07 O. Ivanytskyi , V. Sagun , I. Lopes

We investigate the effect of feeble interaction of dark matter (DM) with hadronic matter on the equation of state (EoS) and structural properties of neutron stars (NSs) in static conditions. For the purpose we adopt the effective chiral…

High Energy Physics - Phenomenology · Physics 2021-06-08 Debashree Sen , Atanu Guha

We study an impact of asymmetric fermionic dark matter on neutron star properties, including tidal deformability, mass, radius, etc. We present the conditions at which dark matter particles tend to form a compact structure in a core of the…

High Energy Astrophysical Phenomena · Physics 2021-11-29 V. Sagun , E. Giangrandi , O. Ivanytskyi , I. Lopes , K. A. Bugaev

Asymmetric dark matter (ADM) has been an attractive possibility attempting to explain the observed ratio of baryon to dark matter abundance in the universe. While a bosonic ADM is constrained by the limits from existence of old neutron…

High Energy Physics - Phenomenology · Physics 2013-10-08 Biplob Bhattacherjee , Shigeki Matsumoto , Satyanarayan Mukhopadhyay , Mihoko M. Nojiri

We study an impact of self-interacting bosonic dark matter (DM) on various observable properties of neutron stars (NSs). The analysis is performed for asymmetric DM with masses from few MeV to GeV, the self-coupling constant of order…

High Energy Astrophysical Phenomena · Physics 2022-01-05 Davood Rafiei Karkevandi , Soroush Shakeri , Violetta Sagun , Oleksii Ivanytskyi

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

In this work we apply relativistic mean-field theory in neutron stars assuming that fermionic dark matter is trapped inside the star and interacts directly with neutrons by exchanging Standard Model Higgs bosons. For realistic values of the…

High Energy Physics - Phenomenology · Physics 2017-10-25 Grigoris Panotopoulos , Ilidio Lopes

We consider possibly observable effects of asymmetric dark matter (ADM) in neutron stars. Since dark matter does not self-annihilate in the ADM scenario, dark matter accumulates in neutron stars, eventually reaching the Chandrasekhar limit…

High Energy Physics - Phenomenology · Physics 2012-01-27 Samuel D. McDermott , Hai-Bo Yu , Kathryn M. Zurek

If dark matter (DM) accumulates inside neutron stars (NS), it changes their internal structure and causes a shift of the tidal deformability from the value predicted by the dense-matter equation of state (EOS). In principle, this shift…

High Energy Astrophysical Phenomena · Physics 2024-11-25 Hauke Koehn , Edoardo Giangrandi , Nina Kunert , Rahul Somasundaram , Violetta Sagun , Tim Dietrich

We study the effect of asymmetric fermionic dark matter (DM) on the thermal evolution of neutron stars (NSs). No interaction between DM and baryonic matter is assumed, except the gravitational one. Using the two-fluid formalism, we show…

High Energy Astrophysical Phenomena · Physics 2024-03-08 Afonso Ávila , Edoardo Giangrandi , Violetta Sagun , Oleksii Ivanytskyi , Constança Providência

Recent gravitational-wave (GW) observations offer a unique opportunity to probe the fundamental nature of compact objects. A growing body of research has focused on exploring the role of dark matter (DM) through the concept of DM-admixed…

General Relativity and Quantum Cosmology · Physics 2026-03-18 Rafael M. Santos , Rafael C. Nunes , Jaziel G. Coelho , Jose C. N. de Araujo

A comprehensive investigation of nonradial oscillations in neutron star (NS) admixed with gravitationally bounded dark matter (DM) is carried out within the framework of full general relativity. The relativistic mean field (RMF) formalism…

Nuclear Theory · Physics 2025-11-05 Pinku Routaray

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…

High Energy Physics - Phenomenology · Physics 2026-01-05 Wasif Husain

Neutron stars represent unique laboratories, offering insights into the physics of supranuclear-density matter and serving as potential hosts for dark matter. This study explores the impact of dark matter cores on rapidly rotating neutron…

High Energy Astrophysical Phenomena · Physics 2024-05-03 Andreas Konstantinou