Stellar Neutron Capture on Neon Isotopes

Details Stellar Neutron Capture on Neon Isotopes Stellar Neutron Capture on Neon Isotopes

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..769.1362h&link_type=abstract

INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY. AIP Conference Proceedings, Volume 769, pp. 1362-1365 (200

Physics

Nuclear Physics

1

Radiative Capture, Nuclear Physics Aspects Of Novae, Supernovae, And Other Explosive Environments, Abundances, Chemical Composition

Scientific paper

The stellar (n,γ) cross sections of the Ne isotopes are important for a number of astrophysical quests, i.e., for the interpretation of abundance patterns in presolar material or with respect to the s-process neutron balance in red giant stars. This paper presents resonance studies of experimental data in the keV range, which had not been fully analyzed before. The analyses were carried out with the R-matrix code SAMMY including the consistent treatment of possible interferences in the resonant part. With these results the resonant part of the neon cross sections could be determined. If the component due to direct radiative capture is normalized at thermal neutron energies, one finds that the stellar rates had been grossly overestimated.

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