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The Prolonged Minima and Maxima of Solar Activity

Published online by Cambridge University Press:  12 April 2016

V.N. Dermendijev ,
G.T. Buyukliev  and
Y.Y. Shopov
V.N. Dermendijev
Affiliation:
Department of Astronomy and NAO, 72 Lenin Blvd., 1784 Sofia, Bulgaria
G.T. Buyukliev
Affiliation:
Department of Astronomy and NAO, 72 Lenin Blvd., 1784 Sofia, Bulgaria
Y.Y. Shopov
Affiliation:
Faculty of Physics, University of Sofia, 5 Anton Ivanov Blvd., Sofia, Bulgaria

Abstract

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We study a new indirect index of solar activity – the Intensity of Luminescence of Cave Flowstone Microzones. This index correlates directly with the solar activity. Using a time series of the index with resolution 4-5 pixels/year we study some of the statistical properties of the solar activity cycle during 28 prolonged minima and 21 prolonged maxima.

Type
Part III Solar magnetism and large-scale flows
Information
International Astronomical Union Colloquium , Volume 130: The Sun and Cool Stars: activity, magnetism, dynamos , 1991 , pp. 268 - 270
Copyright
Copyright © Springer-Verlag 1991

References

Dermendjiev, V.N., Shopov, Y.Y., Buyukliev, G.T.: 1990, Solar Phys. 128, 217 CrossRefGoogle Scholar
Ruzmaikin, A.A.: 1985, Solar Phys. 100, 125 CrossRefGoogle Scholar
Shopov, Y.Y.: 1987, in “Proc. of Int Symp. on Complex Research of Mountain Karst”, Tbilisi, p. 6 Google Scholar
Shopov, Y.Y., Dermendjiev, V.N.: 1990, Comptes rendus de l’Academie Bulg. des Sci., in pressGoogle Scholar