Results 31 to 40 of about 556,485 (362)
Gravitino Warm Dark Matter with Entropy Production [PDF]
Journal of High Energy Physics, 2001 Gravitinos with a mass in the keV range are an interesting candidate for warm dark matter. Recent measurements of the matter density of the universe and of cosmic structures at the dwarf galaxy scale rule out the simplest gravitino models with thermal freeze-out.
Edward A. Baltz, Murayama, Hitoshi
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Strongly coupled dark energy with warm dark matter vs. LCDM [PDF]
Journal of Cosmology and Astroparticle Physics, 2017 Cosmologies including strongly Coupled (SC) Dark Energy (DE) and Warm dark matter (SCDEW) are based on a conformally invariant (CI) attractor solution modifying the early radiative expansion. Then, aside of radiation, a kinetic field $ $ and a DM component account for a stationary fraction, $\sim 1\, \%$, of the total energy.
S. A. Bonometto +2 more
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Implications of the Stellar Mass Density of High-z Massive Galaxies from JWST on Warm Dark Matter [PDF]
Research in Astronomy and Astrophysics, 2023 A significant excess of the stellar mass density at high redshift has been discovered from the early data release of James Webb Space Telescope (JWST), and it may require a high star formation efficiency.
Hengjie Lin +3 more
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thesan-hr: Galaxies in the Epoch of Reionization in warm dark matter, fuzzy dark matter and interacting dark matter [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Using high-resolution cosmological radiation-hydrodynamic (RHD) simulations (thesan-hr), we explore the impact of alternative dark matter (altDM) models on galaxies during the Epoch of Reionization.
Xuejian Shen +10 more
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Massive prompt cusps: A new signature of warm dark matter [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2023 Every dark matter halo and subhalo is expected to have a prompt ρ∝r−1.5 central density cusp, which is a relic of its condensation out of the smooth mass distribution of the early universe.
M. Sten Delos
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Understanding the Formation of Galaxies with Warm Dark Matter [PDF]
Journal of Modern Physics, 2023 The formation of galaxies with warm dark matter is approximately adiabatic. The cold dark matter limit is singular and requires relaxation. In these lecture notes we develop, step-by-step, the physics of galaxies with warm dark matter, and their ...
B. Hoeneisen
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Extending the unified subhalo model to warm dark matter [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Using a set of high-resolution N-body simulations, we extend the unified distribution model of cold dark matter (CDM) subhaloes to the warm dark matter(WDM) case.
Feihong He +3 more
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Warm Dark Matter from Higher-Dimensional Gauge Theories
Universe, 2021 Warm dark matter particles with masses in the keV range have been linked with the large group representations in gauge theories through a high number of species at decoupling.
Sinziana Paduroiu +3 more
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Warm dark Matter constraints from the joint analysis of CMB, Lyman-α, and global 21 cm data [PDF]
Monthly notices of the Royal Astronomical Society, 2023 With the help of our previously built MCMC-based parameter estimation package CosmoReionMC, we investigate in detail the potential of 21 cm global signal, when combined with CMB and observations related to the QSO absorption spectra, to constraint the ...
Atrideb Chatterjee, T. R. Choudhury
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Primordial black-hole dark matter via warm natural inflation
Physics Letters B, 2022 We report on a study of the natural warm inflationary paradigm (WNI). We show two important new results arise in this model. One is that the observational constraints on the primordial power spectrum from the cosmic microwave background (CMB) can be ...
Miguel Correa +3 more
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