Results 121 to 130 of about 695,053 (252)

Decay-Produced Neutrino Hot Dark Matter

open access: yesPhysical Review Letters, 1998
We investigate different types of neutrino hot dark matter with respect to structure formation and anisotropies in the cosmic microwave background radiation (CMBR). The possibility of neutrino hot dark matter produced through the decay of a heavier neutrino by the process nu_H -> nu_L + phi, where phi is a scalar particle, is discussed in detail ...
openaire   +2 more sources

Early Objects in the Cosmic String Theory with Hot Dark Matter [PDF]

open access: green, 1997
Richhild Moessner, Robert Brandenberger
openalex   +1 more source

The evolution of X-ray clusters in a cold plus hot dark matter universe [PDF]

open access: green, 1994
Greg L. Bryan   +4 more
openalex   +1 more source

Future cosmological sensitivity for hot dark matter axions [PDF]

open access: green, 2015
Maria Archidiacono   +11 more
openalex   +1 more source

Structure Formation with Cold + Hot Dark Matter

open access: yes, 1993
33pp., 16+ figures not included (available by mail), SCIPP-92 ...
Klypin, Anatoly   +3 more
openaire   +2 more sources

C-19 and Hot, Wide Star Streams

open access: yesThe Astrophysical Journal
The C-19 star stream has the abundance characteristics of an unusually metal-poor globular cluster but kinematically is uncharacteristically hot and wide for a cluster stream, having a line-of-sight velocity dispersion of 7  ±  2 km s ^−1 and a 1 σ width
Raymond G. Carlberg   +7 more
doaj   +1 more source

Cosmology: What One Needs to Know

open access: yesZygon, 2000
Cosmology, the study of the universe, has a past, which is reviewed here. The standard model—the Big Bang, or the hot, dense early universe that is still expanding—is based on observations that are basically consistent but which require additional input
doaj   +2 more sources

A Warm-Plus-Hot Dark Matter Universe

open access: yes, 1995
We investigate a new hybrid-model universe containing two types of dark matter, one ``warm'' and the other ``hot''. The hot component is an ordinary light neutrino with mass $\sim 25h^2$~eV while the warm component is a sterile neutrino with mass $\sim 700h^2$~eV. The two types of dark matter arise entirely within the neutrino sector and do not require
Malaney, R. A.   +2 more
openaire   +2 more sources

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