ELEMENTAL ABUNDANCES IN THE UPPER SOLAR ATMOSPHERE
ELEMENTAL ABUNDANCES IN THE UPPER SOLAR ATMOSPHERE
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DOI：
10.1088/0031-8949/46/3/002
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发表时间：
1992-09-01
期刊：
影响因子：
2.9
通讯作者：
FELDMAN, U
中科院分区：
文献类型：
--
作者：
FELDMAN, U
太阳风（SW）和太阳高能粒子（SEP）中的元素丰度与光球中的元素丰度不同。对高温太阳等离子体光谱丰度测量的重新评估[1]表明，实际上，平均而言，太阳高层大气的组成与SW和SEP的组成性质相似。在过去几年中，对太阳上层大气光谱的详细研究证实了上述结果，并进一步表明，元素丰度在不同区域之间的变化高达一个数量级。这些变化的帐户，发生变化的区域的描述，并给出一个可能的元素富集模型。
Elemental abundances in the solar wind (SW) and in solar energetic particles (SEP) are different from abundances in the photosphere. A reassessment of spectroscopic abundance measurements from high temperature solar plasmas [1] showed that, indeed, on the average, the solar upper atmosphere possesses a composition which is similar in nature to the composition of the SW and SEPs. In the last few years a detailed examination of spectra of the upper solar atmosphere has confirmed the above results and proceeded to show that elemental abundances change from region to region by as much as an order of magnitude. An account of these changes, a description of the regions in which the changes occur, and a possible elemental enrichment model is given.