STELLAR ELECTRON-CAPTURE RATES AND THE FE-54(N,P) EXPERIMENT

被引：36

作者：

AUFDERHEIDE, MB

机构：

[1] Physics Department, State University of New York, Stony Brook, NY

来源：

NUCLEAR PHYSICS A | 1991年 / 526卷 / 01期

关键词：

D O I：

10.1016/0375-9474(91)90304-O

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Limits on stellar electron capture rates are estimated for Fe-54, Fe-55, Mn-53, Co-59, and Co-60 using the results of the recent (n, p) experiment upon Fe-54. It is found that the rates currently used in stellar evolution codes of massive stars are not within these limits and can be different by as much as a factor of six in astrophysically relevant regions. These differences are the result of differing treatments of the Gamow-Teller strength in iron-peak elements. The sensitivity of the stellar electron capture rates to uncertainties in the Gamow-Teller strength function is explored. These uncertainties result from the paucity of information about Gamow-Teller strength functions and from experimental uncertainties.

引用

页码：161 / 187

页数：27

共 30 条

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AUFDERHEIDE M, 1990, IN PRESS AP J

[2]

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