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Published September 1, 1956 | Published
Journal Article Open

Californium-254 and Supernovae

Abstract

It is suggested that the spontaneous fission of Cf254 with a half-life of 55 days is responsible for the form of the decay light-curves of supernovae of Type I which have an exponential form with a half-life of 55 nights. The way in which Cf254 may be synthesized in a supernova outburst, and reasons why the energy released by its decay may dominate all others are discussed. The presence of Tc in red giant stars and of Cf in Type I supernovae appears to be observational evidence that neutron capture processes on both a slow and a fast time-scale have been necessary to synthesize the heavy elements in their observed cosmic abundances.

Additional Information

©1956 The American Physical Society Received 17 May 1956 We should like to express our thanks to Dr. W. Baade for many stimulating discussions, and for providing us with very valuable unpublished data on supernovae. Supported by the joint program of the Office of Naval Research and the U.S. Atomic Energy Commission.

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Created:
August 21, 2023
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