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Solar Polar Field Reversals and Secular Variation of Cosmic Ray Intensity

Published online by Cambridge University Press:  14 August 2015

H. S. Ahluwalia
H. S. Ahluwalia*
Affiliation:
Department of Physics and Astronomy The University of New Mexico Albuquerque, New Mexico 87131

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The profile of the well-known 11-year variation of the cosmic ray intensity appears to depend upon the emerging solar polar magnetic field regime in a very characteristic manner. During the solar activity cycle 19, the cosmic ray intensity takes about seven years to recover to its solar activity minimum level. But during the solar activity cycle 20, the recovery takes place in only about two years. It appears that these characteristic recovery modes are obtainable every other solar activity cycle. We are led to suggest two model configurations for the heliosphere. We believe that an “open” heliosphere model applies to solar activity cycles 18 and 20. A “closed” heliosphere model is obtainable during solar activity cycles 17 and 19. Our results are discussed.

Type
Part I. The Life History of Coronal Structures and Fields
Information
Symposium - International Astronomical Union , Volume 91: Solar and Interplanetary Dynamics , 1980 , pp. 79 - 86
Copyright
Copyright © Reidel 1980 

References

Ahluwalia, H.S.: 1977a, 15th Intern. Cosmic Ray Conf., Plovdiv. Conference Papers (Bulgarian Academy of Sciences), 11, 298.Google Scholar
Ahluwalia, H.S.: 1977b, 15th Intern. Cosmic Ray Conf., Plovdiv. Conference Papers (Bulgarian Academy of Sciences), 11, 304.Google Scholar
Alfven, H.: 1957, Tellus, 9, 92.CrossRefGoogle Scholar
Babcock, H.D., 1959, Astrophys. J., 130, 364.CrossRefGoogle Scholar
Beach, L., and Forbush, S.E.: 1969, Cosmic-ray Results, Carnegie Inst. Wash., Publ. 175, Vol. 22.Google Scholar
Dungey, J.W.: 1961, Phys. Rev. Letters, 6, 47.CrossRefGoogle Scholar
Dungey, J.W.: 1963, Geophysics: The Earth's Environment. Lectures given at Les Houches during 1962 Summer School of Theoretical Physics of the Univ. of Grenoble, Gordon and Breach Science Publishers, New York.Google Scholar
Fisk, L.A., Koslovsky, B., and Ramaty, R.: 1974, Astrophys. J., 190, L39.CrossRefGoogle Scholar
Forbush, S.E.: 1967, J. Geophys. Res., 72, 4937.CrossRefGoogle Scholar
Forbush, S.E.: 1966, in Flugge, S. (ed), Handbuch der Physik, Springer-Verlag, New York, 49/1, 159.Google Scholar
Forman, M.A.: 1975, Rapporteur Paper at the 14th Intern. Cosmic Ray Conf., Munich, Conference Papers (Max-Planck-Institut fur Estraterrestrische Physik), 11, 3820.Google Scholar
Howard, R.: 1974, Solar Phys., 38, 283.CrossRefGoogle Scholar
Heiles, C.: 1976, Ann. Rev. Astron. Astrophys., 14, 1.CrossRefGoogle Scholar
Jokippi, J.R., Levy, E.H., and Hubbard, W.B.: 1977, Astrophys. J., 213, 861.CrossRefGoogle Scholar
Knapp, G.R., Tremaine, S.D., and Gunn, J.E.: 1978, Astron. J., 83, 1585.CrossRefGoogle Scholar
Lange, I., and Forbush, S.E.: 1957, Cosmic-ray Results, Carnegie Inst. Wash., Publ. 175, Vol. 20.Google Scholar
Levy, R.H., Petschek, H.E., and Siscoe, G.L.: 1964, A.I.A.A. Jour., 2, 2065.Google Scholar
McKibben, R.B., Pyle, K.R., and Simpson, J.A.: 1979, Astrophys. J., 277, L147.CrossRefGoogle Scholar
Morrison, P.: 1956, Phys. Rev., 101, 1397.CrossRefGoogle Scholar
Nagashima, K.: 1977, Rapporteur paper at the 15th Intern. Cosmic Ray Conf., Plovdiv. Conference papers (Bulgarian Academy of Sciences), 10, 380.Google Scholar
Parker, E.N.: 1958, Phys. Rev., 110, 1445.CrossRefGoogle Scholar
Quenby, J.J.: 1977, Rapporteur paper at the 15th Intern. Cosmic Ray Conf., Plovdiv, Conference Papers (Bulgarian Academy of Sciences), 10, 364.Google Scholar
Schatten, K.H., and Wilcox, J.M.: 1969, J. Geophys. Res., 74, 4157.CrossRefGoogle Scholar
Smith, E.J., and Tsurutani, B.T.: 1978, Astrophys. J., 83, 717.Google Scholar
Wagner, W.J.: 1976, Astrophys. J., 206, 583.CrossRefGoogle Scholar
Zirker, J.B.: 1977, Rev. Geophys. and Space Phys., 15, 257.CrossRefGoogle Scholar