Results 101 to 110 of about 695,053 (252)
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
doaj +1 more source
Dark fermions and spontaneous CP violation in SU(2)-axion inflation
Journal of High Energy Physics, 2020 Remarkably, if CP was spontaneously broken in the physics of inflation, fermions would notice and remember it. Based on that, we present a new (non-thermal) mechanism for generating self-interacting dark Dirac fermions prior to the Hot Big Bang.
Azadeh Maleknejad
doaj +1 more source
, 2009 We discuss current cosmological constraints on axions, as well as future sensitivities. Bounds on axion hot dark matter are discussed first, and subsequently we discuss both current and future sensitivity to models in which axions play the role as cold ...
Hamann, Jan +4 more
core +1 more source
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
doaj +1 more source
The Dark Matter Radial Profile in the Core of the Relaxed Cluster A2589
, 2004 We present an analysis of a Chandra--ACIS observation of the galaxy cluster A2589 to constrain the radial distribution of the total gravitating matter and the dark matter in the core of the cluster.
Aaron D. Lewis +3 more
core +1 more source
Bayesian model selection for dark energy using weak lensing forecasts
, 2013 The next generation of weak lensing probes can place strong constraints on cosmological parameters by measuring the mass distribution and geometry of the low redshift universe.
Debono, Ivan
core +2 more sources
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.
openaire +1 more source
Hot and Cold Dark Matter Search with GENIUS [PDF]
, 2001 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 ...
Baudis, Laura +5 more
openaire +2 more sources
Neutrino and axion hot dark matter bounds after WMAP-7
, 2010 We update cosmological hot dark matter constraints on neutrinos and hadronic axions. Our most restrictive limits use 7-year data from the Wilkinson Microwave Anisotropy Probe for the cosmic microwave background anisotropies, the halo power spectrum (HPS)
A.G. Riess . +20 more
core +1 more source
Massive Neutrinos and Galaxy Formation
, 1994 We report the most recent results from high-resolution numerical simulations of structure formation in two flat cold+hot dark matter models with neutrino mass densities $\onu=0.2$ and 0.3. We find that structure forms too late in all CDM+HDM models with $
Ma, Chung-Pei
core +1 more source