Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984comap..10..105a&link_type=abstract
Comments on Modern Physics, Part C - Comments on Astrophysics (ISSN 0146-2970), vol. 10, June 1984, p. 105-111.
Astronomy and Astrophysics
Astrophysics
1
Carbonaceous Chondrites, Isotope Effect, Meteoritic Composition, Magnesium Isotopes, Neon Isotopes, Nuclear Fusion, Oxygen Isotopes, Solar System, Supernovae
Scientific paper
Clayton et al. (1973) have studied oxygen isotopic ratios in some inclusions of Allende, and found values which are very different from those obtained in terrestrial samples. The anomalies were interpreted as being related to the admixture of pure 0-16 carried by interstellar grains. The discovery made by Clayton et al. appears to be a strong argument in favor of the possibility that the formation of the solar system might have been initiated by the explosion of a nearby supernova. However, it has now been found that the observed isotope variation pattern might have been caused also by processes not related to nuclear effects. Attention is also given to neon anomalies, and the magnesium isotopic patterns. The implications of the observed data are discussed.
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