천문학회지 (Journal of The Korean Astronomical Society)
- 제29권spc1호
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- Pages.339-340
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- 1996
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- 1225-4614(pISSN)
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- 2288-890X(eISSN)
RESPONSES OF THE TRANSITION REGION TO DOWNWARD AND UPWARD FLOWS
- YUN H. S. (Department of Astronomy, Seoul National University) ;
- CHAE J.-C. (Department of Astronomy, Seoul National University) ;
- POLAN A. I. (DSolar Physics Branch, Laboratory for Astronomy and Solar Physics, NASA/Goddard Space Flight Center)
- 발행 : 1996.12.01
초록
In the present study we examine physical characteristics of a thin and rigid magnetic flux tube with a steady flow inside, which is embedded vertically upward in the solar atmosphere. We found from this study that (1) The downward material flow gives rise to a dominant heating in the flux tube which works with the conductive heating in the same direction. However, the upflow flow creates a dominant cooling which works against the conductive heating, resulting in a steeper temperature gradient with a shallower transition region. (2) Since the thickness of the transition region determines the material content in the transition region, a broader transition region of the downflow tube produces a larger differential measure.