Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-02T19:01:40.380Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnetic fields and dynamics of the Sun's interior

Published online by Cambridge University Press:  01 November 2008

Alexander G. Kosovichev
Alexander G. Kosovichev*
Affiliation:
W. W. Hansen Experimental Physics Lab, Stanford University, Stanford, CA 94305, USA email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Advances in helioseismology provide new knowledge about the origin of solar magnetic activity. The key questions addressed by helioseismology are: what is the physical mechanism of the solar dynamo, how deep inside the Sun are the magnetic fields generated, how are they transported to the surface and form sunspots? Direct helioseismic signatures of the internal magnetic fields are weak and difficult to detect. Therefore, most of the information comes from observations of dynamical effects caused by the magnetic fields. I review results of recent helioseismic observations of the magnetohydrodynamics of the solar interior on various scales, including global dynamics associated with the dynamo processes, and formation of sunspots and active regions.

Keywords

Sun: activity – Sun: helioseismology – Sun: magnetic fields – Sun: interior – sunspots
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S259: Cosmic Magnetic Fields: From Planets, to Stars and Galaxies , November 2008 , pp. 147 - 158
Copyright
Copyright © International Astronomical Union 2009

References

Benevolenskaya, E. E., Hoeksema, J. T., Kosovichev, A. G., & Scherrer, P. H. 1999, ApJ 517, L163CrossRefGoogle Scholar
Brandenburg, A. 2005, ApJ 625, 539CrossRefGoogle Scholar
Braun, D. C. & Fan, Y. 1999, ApJ 510, L81Google Scholar
Castenmiller, M. J. M., Zwaan, C., & van der Zalm, E. B. J. 1986, Sol. Phys. 105, 237CrossRefGoogle Scholar
Dikpati, M., de Toma, G., & Gilman, P. A. 2006, Geophys. Res. Lett. 33, 5102CrossRefGoogle Scholar
Dikpati, M. & Gilman, P. A. 2008, J. Astrophys. Aastron. 29, 29CrossRefGoogle Scholar
D'Silva, S. & Choudhuri, A. R. 1993, A&A 272, 621Google Scholar
Duvall, T. L. J., D'Silva, S., Jefferies, S. M., Harvey, J. W., & Schou, J. 1996, Nature 379, 235CrossRefGoogle Scholar
Giles, P. M., Duvall, T. L. Jr., Scherrer, P. H., & Bogart, R. S. 1997, Nature 390, 52CrossRefGoogle Scholar
González Hernández, I., Kholikov, S., Hill, F., Howe, R., & Komm, R. 2008, Sol. Phys. 252, 235CrossRefGoogle Scholar
Haber, D. A., Hindman, B. W., Toomre, J., & Thompson, M. J. 2004, Sol. Phys. 220, 371CrossRefGoogle Scholar
Haber, D. A., et al. 2002, ApJ 570, 855CrossRefGoogle Scholar
Howard, R., Labonte, B. J. 1980, ApJ 239, L33CrossRefGoogle Scholar
Howe, R. et al. 2000, Science 287, 2456CrossRefGoogle Scholar
Howe, R. 2008, Adv. Sp. Res. 41, 846CrossRefGoogle Scholar
Kitiashvili, I., & Kosovichev, A. G. 2008, ApJ 688, L49CrossRefGoogle Scholar
Kitiashvili, I. N., & Kosovichev, A. G. 2009a, this proceedingsGoogle Scholar
Kitiashvili, I. N., & Kosovichev, A. G. 2009b, Geophys. Astrophys. Fluid Dyn. 103, 53CrossRefGoogle Scholar
Komm, R., Howe, R., Hill, F., & Morita, S. 2008, ASPC Conf. Ser. 383, 83Google Scholar
Kosovichev, A. G. & Schou, J., 1997, ApJ 482, L207CrossRefGoogle Scholar
Kosovichev, A. G. 1999, J. Comp. Appl. Math. 109, 1CrossRefGoogle Scholar
Kosovichev, A. G., Duvall, T. L. Jr., & Scherrer, P. H. 2000, Sol. Phys. 192, 159CrossRefGoogle Scholar
Kosovichev, A. G., 2009, Sp. Sci. Rev., in pressGoogle Scholar
Kosugi, T. et al. 2007, Sol. Phys. 243CrossRefGoogle Scholar
Krieger, L., Roth, M., & von der Lühe, O. 2007, AN 328, 252Google Scholar
Mitra-Kraev, U. & Thompson, M. J. 2007, AN 328, 1009Google Scholar
Parker, E. N. 1955, ApJ 122, 293CrossRefGoogle Scholar
Parker, E. N. 1979, ApJ 230, 905CrossRefGoogle Scholar
Rempel, M., 2007, ApJ 655, 651CrossRefGoogle Scholar
Schou, J., et al. 1998, ApJ 505, 390CrossRefGoogle Scholar
Severny, A. B. 1965, Soviet Astronomy 9, 171Google Scholar
Schatten, K., 2005, Geophys. Res. Lett. 32, 21106CrossRefGoogle Scholar
Spruit, H. C. 2003, Sol. Phys. 213, 1CrossRefGoogle Scholar
Svalgaard, L., Cliver, E. W., Kamide, Y. 2005, Geophys. Res. Lett. 32, 1104CrossRefGoogle Scholar
Švanda, M., Kosovichev, A. G., & Zhao, J. 2007, ApJ 670, L69CrossRefGoogle Scholar
Tsuneta, S. et al. 2008, Sol. Phys. 249, 167CrossRefGoogle Scholar
Vorontsov, S. V. et al. 2002, Science 296, 101CrossRefGoogle Scholar
Zhao, J., Kosovichev, A. G., & Duvall, T. L. Jr., 2001, ApJ 557, 384CrossRefGoogle Scholar
Zhao, J. & Kosovichev, A. G. 2004, ApJ 603, 776CrossRefGoogle Scholar
Zhao, J., Kosovichev, A. G., & Sekii, T., 2009, Proc. Hinode-2 conf., ASP Ser., in pressGoogle Scholar