A REVISED TABLE OF ABUNDANCES OF THE ELEMENTS

Journal Article · Fri May 01 04:00:00 EDT 1959 · Astrophysical Journal (U.S.)

DOI:https://doi.org/10.1086/146667· OSTI ID:4211015

Cameron, A G.W.

The semiempirical abundance table of Suess and Urey has been very helpful to nuclear physicists in determining the relative importance of various mechanisms of nucleogenesis in contributing to the natural abundances of the elements. The table was based primarily on abundance determinations in chondritic meteorites, together with the hypothesis that the abundances of odd mass-number nuclides should lie on a smooth curve. It has recently become apparent that certain elements are over- or underabundant in the chondritic meteorites without apparent chemical reason. In order to throw additional light oil such discrepancies and on certain less well-understood mechanisms of nucleogenesis, the abundance-curve has been re-examined, using some additional nucleogenesis-based criteria for the abundances of evcn mass-number nuclides, and a new table of abundances has been constructed. It was found necessary to change the Suess-Urey table substantially in the rare-enrth region and in the lead region and to make isolated changes in the abundances of certain additional elements. Some conclusions have been drawn regarding the process of neutron capture on a fast time scale and the methods of production of bypassed heavy nuclei. (auth)

• Research Organization: Atomic Energy of Canada, Ltd., Chalk River, Ont.
• NSA Number: NSA-13-019508
• OSTI ID: 4211015
• Journal Information: Astrophysical Journal (U.S.), Journal Name: Astrophysical Journal (U.S.) Vol. Vol: 129; ISSN ASJOA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CAPTURE
ELEMENTS
LEAD
MASS
METEORITES
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
PHYSICS AND MATHEMATICS
QUANTITY RATIO
RARE EARTHS
TABLES