Results 61 to 70 of about 28,541 (177)
Thermal relic of self-interacting dark matter with retarded decay of mediator
Journal of High Energy Physics, 2021 The existence of a light mediator is beneficial to some phenomena in astroparticle physics, such as the core-cusp problem and diversity problem. It can decouple from Standard Model to avoid direct detection constraints, generally realized by retard decay
Bin Zhu, Murat Abdughani
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Feedback from Active Galactic Nuclei in Galaxy Groups
Universe, 2021 The co-evolution between supermassive black holes and their environment is most directly traced by the hot atmospheres of dark matter halos. The cooling of the hot atmosphere supplies the central regions with fresh gas, igniting active galactic nuclei ...
Dominique Eckert +4 more
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Understanding shape and centroid deviations in 39 strong lensing galaxy clusters in various dynamical states [PDF]
EPJ Web of ConferencesThrough observational tests of strong lensing galaxy clusters, we can test simulation derived structure predictions that follow from Λ Cold Dark Matter (ΛCDM) cosmology.
Gassis Raven +10 more
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Shiyou shiyan dizhi, 2020 Two sets of organic-rich shales are developed in the second member of Funing Formation (E1f2) in the Subei Basin, which are E1f2shale 1 and E1f2shale 2. They are widely distributed, with rich shows and favorable shale oil conditions.
Hongliang DUAN, Shili LIU, Qian FU
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Diffusion of dark matter in a hot and dense nuclear environment
Physical Review D, 2016 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. We focus on the effects of density and temperature in the nuclear medium in order to evaluate the importance of the final state blocking in
M. Ángeles Pérez-García +4 more
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Dark Matter Hot Spots and Neutrino Telescopes
, 2021 We perform a new dark matter hot spot analysis using ten years of public IceCube data. This analysis assumes dark matter self-annihilates to neutrino pairs and treats the production sites as discrete point sources. As a result, these sites will appear as hot spots in the sky for neutrino telescopes, possibly outshining other standard model neutrino ...
Meighen-Berger, Stephan, Karl, Martina
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Gravitational accretion of hot dark matter
The Astrophysical Journal, 1988 A major difficulty with hot dark matter models, namely their extremely large clustering scales, can be alleviated if small-scale clustering is produced by accretion around a perturbing mass that is not itself composed of dark matter. This paper reports a numerical simulation of such a perturbing mass immersed in a background of hot dark matter.
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Physics Letters B, 2014 We propose an ultraviolet complete theory for cold dark matter (CDM) and sterile neutrinos that can accommodate both cosmological data and neutrino oscillation experiments within 1σ level.
P. Ko, Yong Tang
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Is Planckian Discreteness Observable in Cosmology?
UniverseA Planck scale inflationary era—in a quantum gravity theory predicting discreteness of quantum geometry at the fundamental scale—produces the scale-invariant spectrum of inhomogeneities with a very small tensor-to-scalar ratio of perturbations and a hot ...
Gabriel R. Bengochea +2 more
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Interpreting Mass and Radius Measurements of Neutron Stars with Dark Matter Halos
The Astrophysical JournalThe high densities of neutron stars (NSs) could provide astrophysical locations for dark matter (DM) to accumulate. Depending on the DM model, these DM admixed NSs (DANSs) could have significantly different properties than pure baryonic NSs, accessible ...
Shafayat Shawqi, Sharon M. Morsink
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