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.
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页码：250 / 261
页数：12
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