Systematics of r-process enrichment factors for barium, neodymium, and samarium isotopic anomalies in the allende meteorite

Journal Article · Tue Dec 01 00:00:00 EST 1981 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/183690· OSTI ID:5728856

Mathews, G J; Fowler, W A

The decomposition of Ba, Nd, and Sm isotopic anomalies in the Allende meteorite into s-process and r-process enrichment is computed with experimental cross section data for all of the stable isotopes involved. The uncertainties in this decomposition are analyzed. It is concluded that these data may reveal a previously unobserved systematic system enirchment relative to solar system r-process material which favors the population of the lighter isotopes of each element. Some possible explanations for these systematics are discussed.

• Research Organization: W. K. Kellogg Radiation Laboratory, California Institute of Technology
• OSTI ID: 5728856
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Vol. 251:1
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BARIUM
NUCLEOSYNTHESIS
METEORITES
CHEMICAL COMPOSITION
NEODYMIUM
SAMARIUM
ABUNDANCE
CROSS SECTIONS
ISOTOPES
R PROCESS
S PROCESS
ALKALINE EARTH METALS
ELEMENTS
METALS
RARE EARTHS
STAR EVOLUTION
640107* - Astrophysics & Cosmology- Planetary Phenomena