Neutron sources in stellar helium burning and s-process nucleosynthesis in massive stars

被引：0

作者：

Wiescher, M. ^{[1
]}

Giesen, U. ^{[1
]}

Gorres, J. ^{[1
]}

Kaeppeler, F. ^{[2
]}

Baraffe, I ^{[3
]}

El Eid, M. ^{[3
]}

Raiteri, C. M. ^{[4
]}

Busso, M. ^{[4
]}

Gallino, R. ^{[5
]}

机构：

[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[2] Kernforschungszentrum Karlsruhe, Inst Kernphys, D-76021 Karlsruhe, Germany

[3] Univ Sternwarte Gottingen, D-37083 Gottingen, Germany

[4] Osservatorio Astron Torino, I-10025 Pino Torinese, Italy

[5] Univ Turin, Inst Fis Gen, I-10125 Turin, Italy

来源：

REVISTA MEXICANA DE FISICA | 1994年 / 40卷

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

New experimental results in Ne-22(alpha,n) Mg-25 capture reaction and Ne-22(Li-6,d) alpha transfer reaction studies have been utilized to calculate the resonance strength of low energy resonances in the a-capture on Ne-22. The experimental results imply a significant reduction in the previous uncertainties for the Ne-22(alpha,n) Mg-25 reaction rate. The present rate, however, may be strongly enhanced by a possible resonance at 633 keV. The respective uncertainties are presented as a function of temperature. The influence of the proposed reaction rate on the 3-process nucleosynthesis during core helium burning in massive stars is investigated and the remaining uncertainties are discussed.

引用

页码：250 / 261

页数：12

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