MASS-TRANSPORT ABOVE SUNSPOTS

被引：0
|
作者：
BRYNILDSEN, N [1 ]
KJELDSETHMOE, O [1 ]
BRUECKNER, GE [1 ]
机构：
[1] USN,RES LAB,EO HULBURT CTR SPACE RES,WASHINGTON,DC 20375
来源：
ASTROPHYSICS AND SPACE SCIENCE | 1990年 / 170卷 / 1-2期
关键词：
D O I：
10.1007/BF00652661
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Mass transport in the transition zone above a sunspot has been studied in the Civ line at 1548 Å, formed at 100 000 K. Four spectral rasters have been used, each covering 60×50 are sec. These have been observed with the High Resolution Telescope and Spectrograph during the Spacelab-2 mission in 1985. Flow velocities are derived from multiple Gaussian components fitted to the observed line intensity profiles. Density sensitive lines were used to find a relation between the Civ line intensity and the particle density. This relation is used in the mass flux calculations. The investigation indicates a clear net downward mass flux above sunspots. © 1990 Kluwer Academic Publishers.
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页码：149 / 154
页数：6
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