On variation of prominence heights with the solar cycle.

Details On variation of prominence heights with the solar cycle. On variation of prominence heights with the solar cycle.

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988bsold...5...77k&link_type=abstract

Byulletin Solnechnye Dannye Akademie Nauk USSR, No. 1988/5, p. 77 - 82

Physics

4

Solar Prominences: Solar Activity Cycles, Solar Prominences: Heights

Scientific paper

The behaviour of prominence heights with the solar cycle is studied. Prominence pictures taken by the Nikolsky magnetograph in 1979 - 1986 are used. A dependence of the average height with time is analysed. The minimum height took place in the fall of 1984, 2 years before the solar activity minimum. Histograms of "prominence occurrence versus height" were constructed for different phases of the solar cycle. It is pointed out that the behaviour of the average prominence height depends on the variation of the distribution of prominence heights with the solar cycle. The minimum height is due to a relative increase of the number of prominences which is less than 25 arcsec. The occurrence of these prominences has a peak before the minimum of solar activity. Such prominences are predominantly located at the latitudes 0 - 20°.

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