Interpretation of the SolarCa48/Ca46Abundance Ratio and the Correlated Ca-Ti Isotopic Anomalies in the EK-1-4-1 Inclusion of the Allende Meteorite

6533b830fe1ef96bd129789c

RESEARCH PRODUCT

Interpretation of the SolarCa48/Ca46Abundance Ratio and the Correlated Ca-Ti Isotopic Anomalies in the EK-1-4-1 Inclusion of the Allende Meteorite

Karl Kratz Wolfgang Hillebrandt P. Möller Michael Wiescher W. Ziegert J. Krumlinde Friedrich-karl Thielemann

subject

Physics Isotope Neutron emission Astrophysics::High Energy Astrophysical Phenomena Nuclear structure General Physics and Astronomy Astrophysics Astrobiology Allende meteorite Nucleosynthesis Abundance (ecology)Kinetic isotope effect Astrophysics::Solar and Stellar Astrophysics Nuclide Nuclear Experiment Astrophysics::Galaxy Astrophysics

description

$\ensuremath{\beta}$-delayed neutron-emission probabilities of neutron-rich S to K isotopes are calculated with nuclear-structure effects taken into account. These results strongly affect predictions made in high-neutron-density astrophysical scenarios for isotopic abundances of several elements. In particular, it is demonstrated that the solar abundance ratio $^{48}\mathrm{Ca}$/$^{46}\mathrm{Ca}$ as well as the correlated Ca and Ti isotopic anomalies can be explained by the same nucleosynthesis process.

year	journal	country	edition	language
1985-10-28	Physical Review Letters

https://doi.org/10.1103/physrevlett.55.1935

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