Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984azh....61..645d&link_type=abstract
(Astronomicheskii Zhurnal, vol. 61, July-Aug. 1984, p. 645-653) Soviet Astronomy (ISSN 0038-5301), vol. 28, July-Aug. 1984, p. 3
Astronomy and Astrophysics
Astronomy
2
Astronomical Models, Cosmology, Galactic Clusters, Galactic Evolution, Neutrinos, Universe, Cosmic Gases, Mass Distribution, Red Shift, Stellar Evolution, Supernovae, Thermal Stability
Scientific paper
Analysis of 27 clusters of galaxies indicates that about 90 percent of the mass is hidden in neutrinos; the member galaxies account for 5-7 percent, and 3-5 percent comprises hot gas of very high entropy.Comparison of the cluster parameters against those of the primordial neutrino-gaseous pancakes yields an estimate for the redshift when the pancakes originally formed. A model is proposed for the ensuing pancake evolution: early supernovae would explode and further heat the pancake gas that has not yet cooled, raising its entropy to the values observed. The strong flows induced in the gas by the explosions would dicate the subsequent, galaxy-formation process and the observed supercluster structure - the mass distribution of the member galaxies and their correlation function. Only large-scale objects (superclusters, clusters) preserve information on the spectrum of the initial fluctuations.
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