English
Related papers

Related papers: Bosonic dark matter dynamics in hybrid neutron sta…

200 papers

We study the impact of asymmetric bosonic dark matter on neutron star properties, including possible changes of tidal deformability, maximum mass, radius, and matter distribution inside the star. The conditions at which dark matter…

High Energy Astrophysical Phenomena · Physics 2023-01-11 Violetta Sagun , Edoardo Giangrandi , Oleksii Ivanytskyi , Costança Providência , Tim Dietrich

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

We consider galaxy halos formed by dark matter bosons with mass in the range of about a few tens or hundreds eV. A major part of the particles is in a noncondensed state and described under the Thomas-Fermi approach. Derived equations are…

Astrophysics of Galaxies · Physics 2021-12-08 Iskander G. Abdullin , Vladimir A. Popov

We explore the presence of self-interacting bosonic dark matter (DM) within neutron stars (NSs) in light of the latest multi-messenger observations of the Neutron Star Interior Composition Explorer (NICER) and LIGO/Virgo detectors. The…

High Energy Astrophysical Phenomena · Physics 2024-03-05 Soroush Shakeri , Davood Rafiei Karkevandi

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,…

High Energy Astrophysical Phenomena · Physics 2023-08-15 Edoardo Giangrandi , Violetta Sagun , Oleksii Ivanytskyi , Constança Providência , Tim Dietrich

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

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…

High Energy Astrophysical Phenomena · Physics 2024-03-05 Davood Rafiei Karkevandi , Mahboubeh Shahrbaf , Soroush Shakeri , Stefan Typel

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…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-12 Premachand Mahapatra , Chiranjeeb Singha , Ayush Hazarika , Prasanta Kumar Das

The possibility that dark matter, whose existence is inferred from the study of the galactic rotation curves, and from the mass deficit in galaxy clusters, can be in a form of a Bose-Einstein Condensate, has been extensively investigated…

General Relativity and Quantum Cosmology · Physics 2015-09-01 Tiberiu Harko , Francisco S. N. Lobo

An alternative bosonic dark matter model is examined in detail via high-resolution simulations. These bosons have particle mass of order $10^{-22}eV$ and are non-interacting. If they do exist and can account for structure formation, these…

Astrophysics · Physics 2010-01-15 Tak-Pong Woo , Tzihong Chiueh

Rotating bosonic dark matter halos are considered as potential candidates for modeling dark matter in galactic halos. These bosonic dark matter halos can be viewed as a dilute and very extended version of bosonic stars, and the methods used…

Astrophysics of Galaxies · Physics 2025-03-13 Jorge Castelo Mourelle , Christoph Adam

We provide a detailed analysis of how bosonic dark matter "condensates" interact with compact stars, extending significantly the results of a recent Letter. We focus on bosonic fields with mass $m_B$, such as axions, axion-like candidates…

Solar and Stellar Astrophysics · Physics 2016-02-24 Richard Brito , Vitor Cardoso , Caio F. B. Macedo , Hirotada Okawa , Carlos Palenzuela

Light bosonic dark matter can form gravitationally bound states known as boson stars. In this work, we explore a new signature of these objects interacting with the interstellar medium (ISM). We show how small effective couplings between…

High Energy Physics - Phenomenology · Physics 2023-01-04 Javier F. Acevedo , Amit Bhoonah , Joseph Bramante

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

Neutron stars can accumulate asymmetric dark matter (ADM) in their interiors, which affects the neutron star's measurable properties and makes compact objects prime targets to search for ADM. In this work, we use Bayesian inference to…

High Energy Astrophysical Phenomena · Physics 2023-06-05 Nathan Rutherford , Geert Raaijmakers , Chanda Prescod-Weinstein , Anna Watts

We investigate the effects ultralight bosonic field dark matter may have on the dynamics of unstable differentially-rotating neutron stars prone to the bar-mode instability. To this aim we perform numerical simulations in general relativity…

General Relativity and Quantum Cosmology · Physics 2022-08-17 Fabrizio Di Giovanni , Nicolás Sanchis-Gual , Davide Guerra , Miquel Miravet-Tenés , Pablo Cerdá-Durán , José Antonio Font

Theories on the bosonic nature of dark matter are a promising alternative to the cold dark matter model. Here we consider a dark matter halo in the state of a Bose-Einstein condensate, subject to the gravitation of a black hole. In the low…

General Relativity and Quantum Cosmology · Physics 2023-10-11 Ludovica Dieli , Claudio Conti

Bosonic stars,hypothetical astrophysical entities, are generally categorized into two primary classes based on the nature of their constituent particles: Einstein Klein Gordon stars, made up of massive scalar bosons, and Proca stars, their…

Astrophysics of Galaxies · Physics 2025-09-24 Jorge Castelo Mourelle , Nicolas Sanchis-Gual , José A. Font

We investigate the possible occurrence of a Bose-Einstein condensed phase of matter within neutron stars due to the formation of Cooper pairs among the superfluid neutrons. To this end we study the condensation of bosonic particles under…

General Relativity and Quantum Cosmology · Physics 2015-06-19 Christine Gruber , Axel Pelster

We perform a comparative Bayesian analysis of fermionic and bosonic dark matter admixed neutron stars (DMANS) by incorporating a comprehensive set of theoretical, experimental, and astrophysical constraints. The hadronic matter equation of…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-06 Payaswinee Arvikar , Sakshi Gautam , Anagh Venneti , Sarmistha Banik
‹ Prev 1 2 3 10 Next ›