Results 31 to 40 of about 689,866 (345)
Diffusion of dark matter in a hot and dense nuclear environment [PDF]
Physical Review D, 2015 We calculate the mean free path in a hot and dense nuclear environment for a fermionic dark matter particle candidate in the $\sim$GeV mass range interacting with nucleons via scalar and vector effective couplings.
M. Cermeño +2 more
semanticscholar +6 more sources
Polarized equatorial emission and hot spots around black holes with a dark matter halo [PDF]
European Physical Journal C: Particles and FieldsWe study linear polarization of the accretion disks around black holes with a dark matter halo. The interaction of the black hole with the dark matter is modeled by considering an exact solution to the Einstein equations which describe a superposition of
Tsanimir Angelov +4 more
doaj +4 more sources
Interference with gravitational instability: Hot and fuzzy dark matter [PDF]
Wave or fuzzy dark matter produced with high momenta behaves in many ways like hot particle dark matter while also possessing seemingly different phenomenology due to wave interference. We develop wave perturbation theory to show that white noise density
Rayne Liu, Wayne Hu, Huangyu Xiao
openalex +2 more sources
Sterile neutrino hot, warm, and cold dark matter [PDF]
Physical Review D, 2001 We calculate the incoherent resonant and non-resonant scattering production of sterile neutrinos in the early universe. We find ranges of sterile neutrino masses, vacuum mixing angles, and initial lepton numbers which allow these species to constitute viable hot, warm, and cold dark matter (HDM, WDM, CDM) candidates which meet observational constraints.
Kevork N. Abazajian +2 more
openalex +5 more sources
Hot and Cold Dark Matter Search with GENIUS [PDF]
, 2000 GENIUS is a proposal for a large volume detector to search for rare events. An array of 40-400 'naked' HPGe detectors will be operated in a tank filled with ultra-pure liquid nitrogen. After a description of performed technical studies of detector operation in liquid nitrogen and of Monte Carlo simulations of expected background components, the ...
L. Baudis +5 more
openalex +5 more sources
The Astrophysical JournalStatistics that capture the directional dependence of the baryon distribution in the cosmic web enable unique tests of cosmology and astrophysical feedback.
M. Lokken +75 more
doaj +2 more sources
Merger Effects on the Spin and Shape Alignments of Galaxy Stellar, Cold Gas, Hot Gas, and Dark Matter Components [PDF]
Astrophysical Journal, 2022 We present a numerical evidence supporting the scenario that the peculiar alignments of the galaxy stellar spins with the major principal axes of the local tidal tensors are produced during the quiescent evolution period when the galaxies experience no ...
Jounghun Lee, Jun-Sung Moon
semanticscholar +1 more source
Dark matter and gravitational waves from a dark big bang [PDF]
Physical Review D, 2023 The Hot Big Bang is often considered as the origin of all matter and radiation in the Universe. Primordial nucleosynthesis (BBN) provides strong evidence that the early Universe contained a hot plasma of photons and baryons with a temperature $T>\text ...
K. Freese, M. W. Winkler
semanticscholar +1 more source
Primordial black hole sterile neutrinogenesis: sterile neutrino dark matter production independent of couplings [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 Sterile neutrinos (ν s s) are well-motivated and actively searched for hypothetical neutral particles that would mix with the Standard Model active neutrinos. They are considered prime warm dark matter (DM) candidates, typically when their mass is in the
Muping Chen +3 more
semanticscholar +1 more source