恒星核合成的辐射中子俘获反应速率

IF 1.6 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Vinay Singh, Debasis Bhowmick, D. N. Basu
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引用次数: 0

摘要

核天体物理学等多学科课题对核数据的需求量很大。核物理中相互关联最明显的两个领域是恒星演化和核合成。天体物理应用对核数据的需求对实验方法以及当前核模型的可靠性和预测能力提出了考验。尽管最近取得了长足进步,但仍然存在重大问题和谜团。目前的工作只涵盖了核天体物理学的几个特征,其中包括 \(^{52}\)Fe(n、\Fe(n,\(gamma))((^{53})Fe, ((^{53})Fe(n,\(gamma))((^{54})Fe, ((^{54})Fe(n,\(gamma))((^{55})Fe、\Fe(n,(gamma))((^{56})Fe, ((^{56})Fe(n,(gamma))((^{57})Fe, ((^{57})Fe(n、\Fe 和 \(^{58}\)Fe(n,\(\gamma\))\(^{59}\)Fe 反应,这些反应在恒星核合成中非常重要。反应速率是用核统计模型计算出来的。这些速率随后被拟合为温度 T\(_9\) 的多项式,以方便恒星核合成的计算。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Radiative neutron capture reaction rates for stellar nucleosynthesis

Radiative neutron capture reaction rates for stellar nucleosynthesis

There is a high demand for nuclear data in multidisciplinary subject like nuclear astrophysics. The two areas of nuclear physics which are most clearly related to one another are stellar evolution and nucleosynthesis. The necessity for nuclear data for astrophysical applications puts experimental methods as well as reliability and predicative ability of current nuclear models to the test. Despite recent, considerable advances, there are still significant issues and mysteries. Only a few characteristics of nuclear astrophysics are covered in the current work which include \(^{52}\)Fe(n,\(\gamma \))\(^{53}\)Fe, \(^{53}\)Fe(n,\(\gamma \))\(^{54}\)Fe, \(^{54}\)Fe(n,\(\gamma \))\(^{55}\)Fe, \(^{55}\)Fe(n,\(\gamma \))\(^{56}\)Fe, \(^{56}\)Fe(n,\(\gamma \))\(^{57}\)Fe, \(^{57}\)Fe(n,\(\gamma \))\(^{58}\)Fe and \(^{58}\)Fe(n,\(\gamma \))\(^{59}\)Fe reactions which are important in stellar nucleosynthesis. The reaction rates are calculated using nuclear statistical model. These rates are subsequently fitted to polynomials of temperature T\(_9\) in order to facilitate calculations for stellar nucleosynthesis.

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来源期刊
Indian Journal of Physics
Indian Journal of Physics 物理-物理:综合
CiteScore
3.40
自引率
10.00%
发文量
275
审稿时长
3-8 weeks
期刊介绍: Indian Journal of Physics is a monthly research journal in English published by the Indian Association for the Cultivation of Sciences in collaboration with the Indian Physical Society. The journal publishes refereed papers covering current research in Physics in the following category: Astrophysics, Atmospheric and Space physics; Atomic & Molecular Physics; Biophysics; Condensed Matter & Materials Physics; General & Interdisciplinary Physics; Nonlinear dynamics & Complex Systems; Nuclear Physics; Optics and Spectroscopy; Particle Physics; Plasma Physics; Relativity & Cosmology; Statistical Physics.
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