Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...332....1s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 332, Sept. 1, 1988, p. 1-16. DOE-supported research.
Astronomy and Astrophysics
Astrophysics
48
Dark Matter, Density Distribution, Galactic Clusters, Galactic Evolution, Mass Distribution, Baryons, Fourier Transformation, Normal Density Functions, Red Shift
Scientific paper
The distribution of galaxies, clusters, and pancakes that arises from the growth of primordial fluctuations is calculated. All current candidates for the gravitational mass of the universe are reviewed and classified according to the generic type of fluctuation spectrum. Particle candidates depend on the nature of the dark, weakly interacting matter which can be either "hot" (adiabatic fluctuations of massive neutrinos or baryons which dominate a low-Ω universe), "warm" (adiabatic fluctuations in a baryon-dominated universe with Ω = 1) or "cold" (axions or stable supersymmetric particles with mass very large1 keV, or isocurvature fluctuations in a universe dominated by baryons). The authors compare, for these various possibilities, a number of predictions with observations: the galaxy luminosity function, the cluster multiplicity function, and the large-scale velocity field as well as the galaxy correlations.
Schaeffer Richard
Silk Joseph
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