New information on r-process nuclei

Details New information on r-process nuclei New information on r-process nuclei

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..529..295k&link_type=abstract

CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS: 10th International Symposium. AIP Conference Proceedings, Volume 529, pp. 29

Astronomy and Astrophysics

Astrophysics

4

Hydrostatic Stellar Nucleosynthesis, Stellar Characteristics And Properties, Radiative Capture, 90<=A<=149

Scientific paper

A correct understanding of r-process nucleosynthesis requires the knowledge of nuclear properties far from stability and a detailed prescription of the astrophysical environment. Experiments at CERN-ISOLDE have played a pioneering role in exploring the characteristics of nuclear structure in terms of masses and β-decay properties. In this paper, the main focus is put on the region around the doubly-magic nucleus 132Sn, where increasing experimental evidence for a weakening of the N=82 shell strength is observed. This new phenomenon leads to improved predictions of astrophysical observables like the solar-system isotopic r-abundances (Nr,beye) and the recent elemental abundances of ultra-metal-poor neutron-capture-rich halo stars. .

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