Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975svphu.116..687c&link_type=abstract
Uspekhi Fizicheskikh Nauk, vol. 116, Aug. 1975, p. 687-708. In Russian.
Astronomy and Astrophysics
Astronomy
Abundance, Actinide Series, Big Bang Cosmology, Nuclear Fusion, Plutonium Isotopes, Alpha Particles, Astronomical Models, Chronology, Heavy Nuclei, Long Term Effects, Mass Spectroscopy, Radioactive Decay, Solar System, Stellar Interiors
Scientific paper
Data about the abundances of transactinide elements, especially plutonium-244, in meteorites, on earth, and in lunar rocks are analyzed using an exponential model of continuous synthesis in the framework of big-bang cosmology. It is shown that the big-bang model explains well the synthesis of deuterium and helium at earlier stages in the evolution of the universe, that synthesis of heavy elements took place in stellar interiors and during explosive processes (novae and supernovae), and that this mechanism can help to describe the formation of all chemical elements from helium through the transuranium species. It is also shown that nucleosynthesis in our Galaxy has occurred in the course of the six billion years up to the formation of the solar system and that measurements of plutonium in precambiran bastnasite have confirmed the existence of Pu-244 in nature. The possibility is considered that changes in the past stability of heavy nuclei are a result of variations in the universal constants of nature, but this possibility is found to be extremely limited.
Chechev Valerii P.
Kramarovskii Ia. M.
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