NDLI: Decaying neutrinos in galaxy clusters

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Decaying neutrinos in galaxy clusters

Content Provider	NASA Technical Reports Server (NTRS)
Author	Melott, Adrian L. Splinter, Randall J. Persic, Massimo Salucci, Paolo
Copyright Year	1993
Description	The DM profile in clusters of galaxies was studied and simulated using the Harrison-Zel'dovich spectrum of density fluctuations, and an amplitude previously derived from numerical simulations and in agreement with microwave background fluctuations. Neutrino DM densities, with this amplitude normalization cluster, are comparable to observed cluster DM values. It was concluded that given this normalization, the cluster DM should be al least largely composed of neutrinos. The constraint of Davidson et al., who argued that the failure to detect uv photons from the dark matter (DM) in cluster A665 excludes the decaying neutrino hypothesis, could be somewhat weakened by the presence of baryonic DM; but it cannot be eliminated given our assumptions.
File Size	763507
Page Count	15
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19950012332
Archival Resource Key	ark:/13960/t1fj7cq3p
Language	English
Publisher Date	1993-01-01
Access Restriction	Open
Subject Keyword	Space Radiation Particle Decay Boundary Conditions Photons Computerized Simulation Density Distribution Galactic Clusters Numerical Analysis Dark Matter Neutrinos Stellar Physics Cosmology Computational Grids Many Body Problem Background Radiation Ultraviolet Emission Microwaves Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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