On the Shape of H and K Ca II Line Profiles in Sunspot Umbral Spectra

被引：0
|
作者：
V. G. Skochilov
R. B. Teplitskaya
机构：
[1] Institute of Solar-Terrestrial Physics,
[2] Russian Academy of Sciences,undefined
[3] Siberian Branch,undefined
来源：
Solar Physics | 1997年 / 173卷
关键词：
Convolution; Deconvolution; Line Profile; Convolution Equation; Integral Convolution;
D O I：
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学科分类号：
摘要：
Emission cores of the H and K Caii lines observed in sunspot umbral spectra are mainly single-peaked, while semi-empirical umbral models predict their double-peak character. It is verified whether a single-peaked profile can be the result of the smearing of an originally double-peaked profile by macroturbulence. The integral convolution equation is solved for measured H and K profiles, and it is shown that, also after the deconvolution, they remain single-peaked even at an r.m.s. value of the macroturbulence velocity equal to 5 km s-1.
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页码：275 / 279
页数：4
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