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Large Scale Patterns on the Solar Surface Indicated by Microwave Observations

Published online by Cambridge University Press:  12 April 2016

B. Vršnak ,
S. Pohjolainen ,
H. Teräsranta ,
S. Urpo ,
R. Brajša ,
V. Ruždjak ,
A. Schroll  and
S. Jurač
B. Vršnak
Affiliation:
Hvar Observatory, 58450 Hvar, Yugoslavia
S. Pohjolainen
Affiliation:
Metsähovi Radio Research Station, 02540 Kylmälä, Finland
H. Teräsranta
Affiliation:
Metsähovi Radio Research Station, 02540 Kylmälä, Finland
S. Urpo
Affiliation:
Metsähovi Radio Research Station, 02540 Kylmälä, Finland
R. Brajša
Affiliation:
Hvar Observatory, 58450 Hvar, Yugoslavia
V. Ruždjak
Affiliation:
Hvar Observatory, 58450 Hvar, Yugoslavia
A. Schroll
Affiliation:
Sonnenobservatorium Kanzelhöhe, 9520 Sattendorf, Austria
S. Jurač
Affiliation:
Hvar Observatory, 58450 Hvar, Yugoslavia

Abstract

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A large set of observations of the Sun at 37 GHz is analysed. An association of 99% is found between the regions of brightness temperature depression and the magnetic field inversion lines. Observations indicate a possible existence of “giant cells” with duration of 1-2 years and a longitudinal extension up to 90°.

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. 282 - 284
Copyright
Copyright © Springer-Verlag 1991

References

Bumba, V.: 1987, Bull. Astron. Inst. Czech. 38, 92 Google Scholar
Schmahl, E.J., Bobrowsky, M., Kundu, M.R.: 1981, Solar Phys. 71, 311 Google Scholar
Urpo, S., Pohjolainen, S.: 1987, Hvar Obs. Bull. 11, 137 Google Scholar