Atomic data from the IRON project - XL. Electron impact excitation of the Fe XIV EUV transitions

被引：36

作者：

Storey, PJ

Mason, HE

Young, PR

机构：

[1] Dept Appl Math & Theoret Phys, Cambridge CB3 9EW, England

[2] Dept Phys & Astron, London WC1E 6BT, England

来源：

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 2000年 / 141卷 / 02期

关键词：

Sun : corona; atomic data; UV radiation;

D O I：

10.1051/aas:2000319

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate collision strengths and thermally averaged collision strengths for electron excitation between the forty energetically lowest levels of Fe13+. The scattering calculation is mc,re complete than any previous work on this ion and significant differences are found in the excitation rates for many of the extreme ultra-violet (EW) transitions, compared to earlier work. A detailed comparison is made between predicted line intensity ratios and those observed in solar coronal spectra which shows that several outstanding discrepancies are resolved by the new atomic data.

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收藏

页码：285 / 296

页数：12

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