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The process of $\nu \bar{\nu}$ radiation due to interaction of electrons with phonons in the crust of a cooling neutron star is studied with the consistent account of an electromagnetic coupling between electrons in the medium. The…

高能物理 - 唯象学 · 物理学 2009-10-31 L. B. Leinson

We explore the supernova neutrino-boosted dark matter (SN$\nu$BDM) and its direct detection. During core-collapse supernovae, an abundance of neutrinos are emitted. These supernova neutrinos can transfer their kinetic energy to the light…

高能物理 - 唯象学 · 物理学 2025-01-22 Jun-Wei Sun , Lei Wu , Yan-Hao Xu , Bin Zhu

We study the formation and properties of dark neutron stars in a scenario where dark matter is made up of (heavy) dark baryons in a sequestered copy of the MSSM. This scenario naturally explains the coincidence of baryonic and dark matter…

高能物理 - 唯象学 · 物理学 2025-11-05 Jacob A. Litterer , João G. Rosa

The XENON collaboration recently reported an excess of electron recoil events in the low energy region with a significance of around $3.3\sigma$. An explanation of this excess in terms of thermal dark matter seems challenging. We propose a…

高能物理 - 唯象学 · 物理学 2022-03-07 Anirban Das , Manibrata Sen

We calculate the thermal conductivity of electrons for the strongly correlated multi-component ion plasma expected in the outer layers of neutron star's crust employing a Path Integral Monte Carlo (PIMC) approach. This allows us to isolate…

高能天体物理现象 · 物理学 2016-07-20 Alessandro Roggero , Sanjay Reddy

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…

高能天体物理现象 · 物理学 2025-08-20 Tanech Klangburam , Chakrit Pongkitivanichkul

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

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…

高能天体物理现象 · 物理学 2022-01-05 Davood Rafiei Karkevandi , Soroush Shakeri , Violetta Sagun , Oleksii Ivanytskyi

Based on the formalism by Kaminker et al. (Astron. Astrophys. 343 (1999) 1009) we derive an analytic approximation for neutrino-pair bremsstrahlung emissivity due to scattering of electrons by atomic nuclei in the neutron star crust of any…

太阳与恒星天体物理 · 物理学 2015-06-23 D. D. Ofengeim , A. D. Kaminker , D. G. Yakovlev

Dark Matter constitutes most of the matter in the presently accepted cosmological model for our Universe. The extreme conditions of ordinary baryonic matter, namely high density and compactness, in Neutron Stars make these objects suitable…

高能天体物理现象 · 物理学 2017-10-20 M. Cermeño , M. Ángeles Pérez-García , Joseph Silk

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

Thermal and electric conductivities of relativistic degenerate electrons are calculated for the case when electrons scatter by phonons in Coulomb crystals made of spherical finite--size nuclei at densities $10^{11}$~g/cm$^3 < \rho <…

天体物理学 · 物理学 2007-05-23 D. A. Baiko , D. G. Yakovlev

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 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…

高能物理 - 唯象学 · 物理学 2012-01-27 Samuel D. McDermott , Hai-Bo Yu , Kathryn M. Zurek

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…

高能天体物理现象 · 物理学 2025-09-15 Pinku Routaray , Abirbhav Chakrawarty , N. K. Patra , Bharat Kumar

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

We study the effects on the spectrum and distribution of high-energy neutrinos due to scattering with dark matter both outside and within our galaxy, focusing on the neutrinos observed by the IceCube experiment with energies up to several…

高能物理 - 唯象学 · 物理学 2015-05-11 Jonathan H. Davis , Joseph Silk

We investigate the influence of ideal Fermi gas dark matter on the observable properties of neutron stars (NSs). Our analysis considers dark matter (DM) particle masses ($\mu$) ranging from $0.2$ GeV to $1$ GeV and various DM mass fractions…

广义相对论与量子宇宙学 · 物理学 2026-03-24 Monmoy Molla , Masum Murshid , Mehedi Kalam

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…

太阳与恒星天体物理 · 物理学 2019-07-15 José Lopes , Ilídio Lopes

We study the impact of the interaction between DM and the cosmic neutrino background on the evolution of galactic dark matter halos. The energy transfer from the neutrinos to the dark matter can heat the center of the galaxy and make it…

高能物理 - 唯象学 · 物理学 2023-07-12 Wonsub Cho , Ki-Young Choi , Hee Jung Kim