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Title:
YOHKOH Results in the Context of the High-Latitude Heliosphere
Authors:
Culhane, J. L.
Affiliation:
AA(Mullard Space Science Laboratory Department of Space and Climate Physics, University College London)
Publication:
Space Science Reviews, Volume 72, Issue 1-2, pp. 17-28 (SSRv Homepage)
Publication Date:
04/1995
Origin:
KLUWER; KNUDSEN; SPRINGER
DOI:
10.1007/BF00768749
Bibliographic Code:
1995SSRv...72...17C

Abstract

Designed primarily to study solar activity, Yohkoh includes an X-ray telescope that obtains full-sun coronal images which show a range of features. Coronal X-ray emission-exclusive of flares, is notable for its variability even in the largest structures. A mass ejection event is related to magnetic field reconnection. Such events exhibit both accelerated and decelerated behaviour. Coronal hole temperatures are estimated from the filter ratio method. A plasma component at around 2.106 K is identified. X-ray emission is detected from the South polar coronal hole. A preliminary comparison of Spartan coronagraph images with Yohkoh data suggests that polar plumes or rays are not connected to bright points.

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