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The Polar Fields and Time Fluctuations of the General Magnetic Field of the Sun

Published online by Cambridge University Press:  14 August 2015

A. B. Severny
A. B. Severny*
Affiliation:
Crimean Astrophysical Observatory, Nauchny, Crimea, U.S.S.R.

Abstract

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In an attempt to summarize the present knowledge on the general magnetic field (gmf) of the Sun we pointed out the fine structure and the statistical nature of the gmf as one of its most important properties. The dipole-like behaviour of the mean polar field strengths is combined sometimes (since 1964) with a bias of the S-polarity flux for both poles. Highly uneven distribution of gmf with latitude and longitude, the disappearance of gmf at the South pole for months, and short period, almost synchronous at both poles, variations in the sign of gmf are pointed out. The fluctuations with time of the mean magnetic field of the Sun seen as a star (as well as mf at different latitudes) shows periodicity connected with the rotation of the Sun and very close agreement with the fluctuations of the interplanetary field (sector structure). The effect of faster rotation of N-polarities as compared with S-polarities as well as the bias of mean solar as well as interplanetary S-polarity fields are also pointed out. The possibility of short time-scale (hours) intrinsic changes in the local pattern of gmf is demonstrated.

Type
Part VII: The Polar Fields of the Sun and the Magnetic Activity Cycle
Information
Symposium - International Astronomical Union , Volume 43: Solar Magnetic Fields , 1971 , pp. 675 - 695
Copyright
Copyright © Reidel 1971 

References

Adams, W. S.: 1934, Annual Rept. Mt. Wilson Obs., C.I.W. Yearbook , p. 138.Google Scholar
Adams, W. S.: 1949, Annual Rept. Mt. Wilson Obs., C.I.W. Yearbook , p. 12.Google Scholar
Alfvén, H.: 1967, Bjerkeland Symposium , Sandefjord, Norge, Stockholm.Google Scholar
Babcock, H. D.: 1948, Publ. Astron. Soc. Pacific 60, 244.CrossRefGoogle Scholar
Babcock, H. D.: 1969, Astrophys. J. 130, 364.CrossRefGoogle Scholar
Babcock, H. W. and Babcock, H. D.: 1955, Astrophys. J. 121, 349.Google Scholar
Babcock, H. W. and Cowling, T.: 1953, Monthly Notices Roy. Astron. Soc. 113, 357.CrossRefGoogle Scholar
Bumba, V. and Howard, R.: 1965, Astrophys. J. 141, 1502.CrossRefGoogle Scholar
Bumba, V., Howard, R., and Smith, S.: 1967, in Magnetic and Related Stars (ed. by Cameron, Robert C.), Mono Book Corp. Baltimore, p. 131.Google Scholar
Grotrian, W. and Kunzel, H.: 1950, Z. Astrophys. 28, 28.Google Scholar
Hale, G.: 1915, Nature 136, 703.CrossRefGoogle Scholar
Hale, G., Sears, F., Van Maanen, A., and Ellerman, F.: 1918, Astrophys. J. 47, 206.CrossRefGoogle Scholar
Howard, R.: 1965, in Lüst, R. (ed.), ‘Stellar and Solar Magnetic Fields’, IAU Symp. 22, 129.Google Scholar
Howard, R.: 1966, Observatory 86, 73.Google Scholar
Kiepenheuer, K. O.: 1953, Astrophys. J. 117, 117.Google Scholar
Langez, R.: 1936, Publ. Astron. Soc. Pacific 48, 208.Google Scholar
Leighton, R.: 1965, in Lüst, R. (ed.), ‘Stellar and Solar Magnetic Fields’, IAU Symp. 22, 158.Google Scholar
Livingston, W.: 1966, Private letter.Google Scholar
Livingston, W.: 1968, Astrophys. J. 153, 929.Google Scholar
Mestel, L.: 1968, Monthly Notices Roy. Astron. Soc. 138, 359.Google Scholar
Severny, A.: 1965, in Lüst, R. (ed.), ‘Stellar and Solar Magnetic Fields’, IAU Symp. 22, 238.Google Scholar
Severny, A.: 1966, Izv. Krimsk. Astrophys. Obs. 35, 97.Google Scholar
Severny, A.: 1967, Izv. Krimsk. Astrophys. Obs. 38, 3.Google Scholar
Severny, A.: 1969, Nature 224, Oct. 4.CrossRefGoogle Scholar
Schatten, K., Wilcox, J., and Ness, N.: 1969, Solar Phys. 6, 442.Google Scholar
Shatzman, E.: 1962, Ann. Astrophys. 25, 1.Google Scholar
Simon, G. W. and Leighton, R.: 1964, Astrophys. J. 140, 1120.CrossRefGoogle Scholar
Steenbeck, M. and Krause, F.: 1969, Astron. Nachr. 291, Heft 2.Google Scholar
Stenflo, J. O.: 1966a, Arkiv for Astronomi , Band 4, nr. 13, 173.Google Scholar
Stenflo, J. O.: 1966b, Observatory 86, 73.Google Scholar
Stenflo, J. O.: 1968a, Acta Univers. Lund. Sectio II , 1968, N. 1, 5.Google Scholar
Stenflo, J. O.: 1968b, The Polar Magnetic Fields of July and August 1968, preprint.Google Scholar
Stenflo, J. O.: 1970, Hale's Attempt to Determine the Sun's General Magnetic Fields , preprint.Google Scholar
Thiessen, G. J.: 1946, Ann. Astrophys. 9, 101.Google Scholar
Thiessen, G. J.: 1952, Astrophys. 30, 185.Google Scholar
Von Klüber, H.: 1951, Monthly Notices. Roy. Astron. Soc. 111, 2. See also Beggs, D. and Von Klüber, H.: 1964, Monthly Notices Roy. Astron. Soc. 127, 153.Google Scholar
Von Klüber, H.: 1965, in Lüst, R. (ed.), ‘Stellar and Solar Magnetic Fields’, IAU Symp. 22, 144.Google Scholar
Wilcox, J. and Howard, R.: 1968, Solar Phys. 5, 564.CrossRefGoogle Scholar
Wilcox, J., Severny, A., and Colburn, D.: 1969, Nature 224, 353.Google Scholar