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Changes with Height of Longitudinal Magnetic Field in Active Regions

Published online by Cambridge University Press:  12 April 2016

S.I. Gopasyuk
S.I. Gopasyuk*
Affiliation:
Crimean Astrophyalcal Observatory 334413 Nauchny, Crimea, Ukraine

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Results of a study of longitudinal magnetic fields in active regions are presented. The observed magnetic field strength increases with height in the photosphere. The maximum of the magnetic field intensity coincides with the level where the central parts of λ5324,2 Å FeI and λ5269,5 FeI line profiles are formed. On the Hβ formation level the observed magnetic field intensity is smaller as compared with the potential one calculated on the basis of the observed field in FeI λ5253, 5Å line. The difference between the observed magnetic field and potential one is explained in terms of transverse electric currents. The current value can mount to 3×1011 A.

Type
Session 1. Structure of Active Regions
Information
International Astronomical Union Colloquium , Volume 141: The Magnetic and Velocity Fields of Solar Active Regions , 1993 , pp. 24 - 31
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Abramenko, V.I. and Gopasyuk, S.I.: 1987, Izv. Krymsk. Astrofiz. Obs. 76, 147.Google Scholar
Abramenko, V.I., Gopasyuk, S.I., Ogir’, M.B., Yurchishin, V.B.: 1992a, Kinematika i fizika nebesnych tel (in press).Google Scholar
Abramenko, V.I., Gopasyuk, S.I. and Yurchishin, V.B.:1992b, Solar Phys. (in press).Google Scholar
Gopasyuk, S.I., Kotov, V.A., Sevemy, A.B. Tsap, T.T.: 1973, Solar Phys. 31, 307.CrossRefGoogle Scholar
Gopasyuk, S.I. and Sevemy, A.B.: 1983, Pisma v Astron. zumal, 9, 120.Google Scholar
Gopasyulc, S.I.: 1985, Izv. Krymsk. Astrofiz. Obs. 72, 159.Google Scholar
Gopasyuk, S.I., Demkina, L.B. and Tarasova, T.N.: 1992, Izv. Krymsk. Astrofiz. Obs. 87, 14.Google Scholar
Harvey, J. and Livingston, W.: 1969, Solar Phys. 10, 283.Google Scholar
Semel, M.: 1981, Astron. and Astrophys., 97, 75.Google Scholar
Severny, A.B.: 1965, Izv. Krymsk. Astrofiz. Obs. 33, 34.Google Scholar
Stenflo, J.O.: 1971, in Howard, R. (ed.), “Solar Magnetic Fields”, IAU Symp. 43, 101.Google Scholar