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题名: Shapes of Ne-20 de-excitation line in solar flare
作者: Chen, Wei; Gan, Wei Qun
刊名: ASTROPHYSICS AND SPACE SCIENCE
出版日期: 2017
卷号: 362, 期号:9, 页码:150-
英文摘要: Since almost all de-excitation lines from nuclear states excited by flare-accelerated protons and a-particles are emitted promptly after nuclear collisions, the emission photon's energy depends on the velocity of the recoiling nucleus. The energies and widths of gamma-ray lines provide a wealth of information on the directionality and spectra of ions in solar flares. In this paper, we use TALYS code to improve the cross sections of gamma-ray lines production, and calculate the shapes of the 1.634 MeV line from de-excitation of Ne-20 as a function of ion's energy spectra and the heliocentric angle. Taking this line shape as an example, we try to develop a new method of line shape analysis to study the properties of accelerated ions in solar flares.
语种: 英语
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/17386
Appears in Collections:太阳高能及相关物理过程研究团组_期刊论文

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