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Zwicky, Fritz |
Also found in: Encyclopedia | 0.28 sec. |
Zwicky, Fritz (1898–1974)Swiss astronomer. He predicted the existence of neutron stars in 1934. He discovered 18 supernovae and determined that cosmic rays originate in them. Zwicky observed that most galaxies occur in clusters, each of which contains several thousand galaxies. He made spectroscopic studies of the Virgo and Coma Berenices clusters and calculated that the distribution of galaxies in the Coma Berenices cluster was statistically similar to the distribution of molecules in a gas when its temperature is at equilibrium. Beginning 1936, he compiled a catalogue of galaxies and galaxy clusters in which he listed 10,000 clusters.
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