Constraining Warm Dark Matter and Population III Stars with the Global 21 cm Signal [PDF]
Astrophysical Journal, 2022 Upcoming ground- and space-based experiments may have sufficient accuracy to place significant constraints upon high-redshift star formation, Reionization, and dark matter (DM) using the global 21 cm signal of the intergalactic medium.
J. Hibbard +5 more
semanticscholar +1 more source
Decaying Warm Dark Matter and Neutrino Masses [PDF]
Physical Review Letters, 2007 Neutrino masses may arise from spontaneous breaking of ungauged lepton number. Due to quantum gravity effects the associated Goldstone boson - the majoron - will pick up a mass. We determine the lifetime and mass required by cosmic microwave background observations so that the massive majoron provides the observed dark matter of the Universe.
Lattanzi, Massimiliano +1 more
openaire +4 more sources
Warm Dark Matter Galaxies with Central Supermassive Black Holes
Universe, 2022 We generalize the Thomas–Fermi approach to galaxy structure to include central supermassive black holes and find, self-consistently and non-linearly, the gravitational potential of the galaxy plus the central black hole (BH) system.
Hector J. de Vega, Norma G. Sanchez
doaj +1 more source
A cosmic degeneracy story: structure formation with warm dark matter and scale-dependent primordial non-Gaussianities [PDF]
Journal of Cosmology and Astroparticle PhysicsIt has been recently shown that cosmological models with scale-dependent primordial non-Gaussianities (sPNG) could provide a possible path to solve current cosmic tensions.
Cl'ement Stahl +4 more
semanticscholar +1 more source
Interacting dark matter disguised as warm dark matter
Physical Review D, 2002 14 pages, 5 figures, to appear in ...
Boehm, Celine +3 more
openaire +2 more sources
A Study of Warm Dark Matter, the Missing Satellites Problem, and the UV Luminosity Cut-Off [PDF]
International Journal of Astronomy and Astrophysics International Journal of Astronomy and Astrophysics, 2022 In the warm dark matter scenario, the Press-Schechter formalism is valid only for galaxy masses greater than the"velocity dispersion cut-off". In this work we extend the predictions to masses below the velocity dispersion cut-off, and thereby address the"
B. Hoeneisen
semanticscholar +1 more source
Entering the era of measuring sub-Galactic dark matter structure: Accurate transfer functions for axino, gravitino, and sterile neutrino thermal warm dark matter [PDF]
Physical Review D, 2022 We examine thermal warm dark matter (WDM) models that are being probed by current constraints, and the relationship between the particle dark matter spin and commensurate thermal history.
Cannon M. Vogel, K. Abazajian
semanticscholar +1 more source
Analytic fluid approximation for warm dark matter
Astroparticle Physics, 2023 16 pages, 5 ...
Jorge Mastache, Axel de la Macorra
openaire +2 more sources
Warm dark matter constraints using Milky Way satellite observations and subhalo evolution modeling [PDF]
Physical Review D, 2021 Warm dark matter (WDM) can potentially explain small-scale observations that currently challenge the cold dark matter (CDM) model, as warm particles suppress structure formation due to free-streaming effects.
A. Dekker +3 more
semanticscholar +1 more source
Inverse seesaw model with a modular S 4 symmetry: lepton flavor mixing and warm dark matter [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 In this paper, we present a systematic investigation on simple inverse seesaw models for neutrino masses and flavor mixing based on the modular S 4 symmetry.
Xinyi Zhang, Shun Zhou
semanticscholar +1 more source