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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 investigate a neutrino-scalar dark matter (DM) $\nu\phi$ interaction encountering distinctive neutrino sources, namely Diffuse Supernova Neutrino Background (DSNB) and Active Galactic Nuclei (AGN). The interaction is mediated by a…

High Energy Physics - Phenomenology · Physics 2025-08-14 Po-Yan Tseng , Yu-Min Yeh

Dark matter, one of the important portion of the universe, could affect the visible matter in neutron stars. An important physical feature of dark matter is due to the spin of dark matter particles. Here, applying the piecewise polytropic…

High Energy Physics - Phenomenology · Physics 2018-04-19 Zeinab Rezaei

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

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…

General Relativity and Quantum Cosmology · Physics 2024-12-23 Swarnim Shirke , Bikram Keshari Pradhan , Debarati Chatterjee , Laura Sagunski , Jürgen Schaffner-Bielich

Dark matter (DM) could self-annihilate into neutrinos in dense regions of the Universe. We consider the resulting flux of neutrinos from the Milky Way DM halo and derive exclusion limits on the annihilation cross-section using XENONnT…

High Energy Physics - Phenomenology · Physics 2025-09-19 Boris Betancourt Kamenetskaia , Jong-Chul Park , Merlin Reichard , Gaurav Tomar

In our galaxy, the white dwarfs (WDs) will inevitably capture the dark matter (DM) particles streaming through them, if there exist interactions between DM particles and nuclei/electrons. At the same time, these DM particles can also be…

High Energy Physics - Phenomenology · Physics 2024-01-18 Jia-Shu Niu , Hui-Fang Xue

The presence of dark matter has been ascertained through a wealth of astrophysical and cosmological phenomena and its nature is a central puzzle in modern science. Elementary particles stand as the most compelling explanation. They have…

High Energy Physics - Phenomenology · Physics 2019-10-02 Daniel A. Camargo , Farinaldo S. Queiroz , Riccardo Sturani

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

White dwarfs and neutron stars are far-reaching and multi-faceted laboratories in the hunt for dark matter. We review detection prospects of wave-like, particulate, macroscopic and black hole dark matter that make use of several exceptional…

High Energy Physics - Phenomenology · Physics 2025-02-07 Joseph Bramante , Nirmal Raj

We conduct a systematic investigation of the influence of the nuclear symmetry energy on the proposed neutron decay into dark matter particles within the cores of neutron stars. Unlike the majority of previous studies that considered only…

Nuclear Theory · Physics 2025-09-01 M. Divaris , Ch. C. Moustakidis

We have analyzed the rate of capture of dark matter (DM) particles by the galaxy in the case of the existence of two different types of DM or a bimodal velocity distribution function for DM. It is shown that, in addition to the scenario…

Cosmology and Nongalactic Astrophysics · Physics 2023-03-01 Ruth Durrer , Serge Parnovsky , Aleksei Parnowski

Scalar fields can give rise to confined structures, such as boson stars or Q-balls. These objects are interesting hypothetical new "dark matter stars," but also good descriptions of dark matter haloes when the fields are ultralight. Here,…

General Relativity and Quantum Cosmology · Physics 2020-09-30 Lorenzo Annulli , Vitor Cardoso , Rodrigo Vicente

We study the influence of the temperature-dependent interaction between dark matter (DM) and neutrinos on the measurement of cosmological parameters. We pay attention to the neutrino mass effects, so that the derivation of Boltzmann…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-23 Ren-Peng Zhou , Da Huang

We studied the formation and evolution of low-mass stars within halos with high concentration of dark matter (DM) particles, using a highly sophisticated expression to calculate the rate at which DM particles are captured inside the star.…

Cosmology and Nongalactic Astrophysics · Physics 2010-12-22 Jordi Casanellas , Ilidio Lopes

Dark matter (DM) particles with mass in the sub-GeV range are an attractive alternative to heavier weakly-interacting massive particles, but direct detection of such light particles is challenging. If however DM-nucleus scattering leads to…

High Energy Physics - Phenomenology · Physics 2018-09-12 Matthew J. Dolan , Felix Kahlhoefer , Christopher McCabe

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

We estimate the long-lasting gravitational wave (GW) emission of compact dark objects following a binary neutron-star (NS) merger. We consider compact dark objects, which initially reside in the centers of NSs and which may consist of…

High Energy Astrophysical Phenomena · Physics 2023-10-13 Andreas Bauswein , Gang Guo , Jr-Hua Lien , Yen-Hsun Lin , Meng-Ru Wu

We propose a new mechanism by which dark matter (DM) can affect the early universe. The hot interior of a macroscopic DM, or macro, can behave as a heat reservoir so that energetic photons are emitted from its surface. This results in…

Cosmology and Nongalactic Astrophysics · Physics 2019-07-02 Saurabh Kumar , Emanuela Dimastrogiovanni , Glenn D. Starkman , Craig Copi , Bryan Lynn

Theoretical models of self-interacting dark matter represent a promising answer to a series of open problems within the so-called collisionless cold dark matter (CCDM) paradigm. In case of asymmetric dark matter, self-interactions might…

High Energy Astrophysical Phenomena · Physics 2017-08-02 Andrea Maselli , Pantelis Pnigouras , Niklas Gønlund Nielsen , Chris Kouvaris , Kostas D. Kokkotas