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Origin of solar magnetism

Published online by Cambridge University Press:  26 August 2011

Arnab Rai Choudhuri
Arnab Rai Choudhuri*
Affiliation:
Department of Physics, Indian Institute of Science, Bangalore-560012 email: [email protected]
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Abstract

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The most promising model for explaining the origin of solar magnetism is the flux transport dynamo model, in which the toroidal field is produced by differential rotation in the tachocline, the poloidal field is produced by the Babcock–Leighton mechanism at the solar surface and the meridional circulation plays a crucial role. After discussing how this model explains the regular periodic features of the solar cycle, we come to the questions of what causes irregularities of solar cycles and whether we can predict future cycles. Only if the diffusivity within the convection zone is sufficiently high, the polar field at the sunspot minimum is correlated with strength of the next cycle. This is in conformity with the limited available observational data.

Keywords

Solar magnetismdynamotachoclineconvection zone
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S273: The Physics of Sun and Star Spots , August 2010 , pp. 28 - 36
Copyright
Copyright © International Astronomical Union 2011

References

Babcock, H. W. 1961, ApJ, 133, 572CrossRefGoogle Scholar
Babcock, H. W. & Babcock, H. D. 1955, ApJ, 121, 349CrossRefGoogle Scholar
Chakraborty, S., Choudhuri, A. R., & Chatterjee, P. 2009, Phys. Rev. Lett., 102, 041102CrossRefGoogle Scholar
Charbonneau, P. 2005 Living Rev. Solar Phys., 2, 2CrossRefGoogle Scholar
Chatterjee, P. & Choudhuri, A. R. 2006, Solar Phys., 239, 29CrossRefGoogle Scholar
Chatterjee, P., Nandy, D., & Choudhuri, A. R. 2004, A&A, 427, 1019Google Scholar
Choudhuri, A. R. 1989, Solar Phys., 123, 217CrossRefGoogle Scholar
Choudhuri, A. R. 1990, A&A, 239, 335Google Scholar
Choudhuri, A. R. 1992, A&A, 253, 277Google Scholar
Choudhuri, A. R. 2008, J. Astrophys. Astron., 29, 41CrossRefGoogle Scholar
Choudhuri, A. R., Chatterjee, P., & Jiang, J. 2007, Phys. Rev. Lett., 98, 131103CrossRefGoogle Scholar
Choudhuri, A. R., Chatterjee, P., & Nandy, D. 2004, ApJ, 615, L57CrossRefGoogle Scholar
Choudhuri, A. R. & Karak, B. B. 2009, RAA, 9, 953Google Scholar
Choudhuri, A. R., Schüssler, M., & Dikpati, M. 1995, A&A, 303, L29Google Scholar
Dikpati, M. & Gilman, P. A. 2006, ApJ, 649, 498CrossRefGoogle Scholar
D'Silva, S. & Choudhuri, A. R. 1993, A&A, 272, 621Google Scholar
Durney, B. R. 1995, Solar Phys., 160, 213CrossRefGoogle Scholar
Goel, A. & Choudhuri, A. R. 2009, RAA, 9, 115Google Scholar
Hathaway, D. H. 2010, Living Rev. Solar Phys., 7, 1CrossRefGoogle Scholar
Hotta, H. & Yokoyama, T. 2010a, ApJ, 709, 1009CrossRefGoogle Scholar
Hotta, H. & Yokoyama, T. 2010b, ApJ, 714, L308CrossRefGoogle Scholar
Jiang, J., Chatterjee, P., & Choudhuri, A. R. 2007, MNRAS, 381, 1527CrossRefGoogle Scholar
Karak, B. B. & Choudhuri, A. R. 2011, MNRAS, 410, 1503Google Scholar
Leighton, R. B. 1969, ApJ, 156, 1CrossRefGoogle Scholar
Longcope, D. W. & Choudhuri, A. R. 2002, Solar Phys., 205, 63CrossRefGoogle Scholar
Ossendrijver, M. A. J. H. 2003, A&AR, 11, 287Google Scholar
Parker, E. N. 1955a, ApJ, 121, 491CrossRefGoogle Scholar
Parker, E. N. 1955b, ApJ, 122, 293CrossRefGoogle Scholar
Schatten, K. 2005, Geo. Res. Lett., 32, L21106CrossRefGoogle Scholar
Schatten, K. H., Scherrer, P. H., Svalgaard, L., & Wilcox, J. M. 1978, Geo. Res. Lett., 5, 411CrossRefGoogle Scholar
Spruit, H. C. 1981, A&A, 98, 155Google Scholar
Steenbeck, M., Krause, F., & Rädler, K. H. 1966, Z. Naturforsch., 21, 369CrossRefGoogle Scholar
Svalgaard, L. & Cliver, E. W., Kamide, Y. 2005, Geo. Res. Lett., 32, L01104CrossRefGoogle Scholar
Tobias, S., Hughes, D., & Weiss, N. 2006, Nature, 442, 26.CrossRefGoogle Scholar
Wang, Y.-M., Sheeley, N. R., & Nash, A. G. 1991, ApJ, 383, 431CrossRefGoogle Scholar
Yeates, A. R., Nandy, D., & Mackay, D. H. 2008, ApJ, 673, 544CrossRefGoogle Scholar