Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-07T20:15:42.859Z Has data issue: false hasContentIssue false
  • English
  • Français

The α-effect generated by standing Alfvén waves

Published online by Cambridge University Press:  13 March 2009

Tomikazu Namikawa  and
Hiromitsu Hamabata
Tomikazu Namikawa
Affiliation:
Department of Physics, Faculty of Science, Osaka City University, Osaka 558, Japan
Hiromitsu Hamabata
Affiliation:
Department of Physics, Faculty of Science, Osaka City University, Osaka 558, Japan
Get access Rights & Permissions [Opens in a new window]

Abstract

The mean electromotive force generated by nonlinear standing Alfvén waves propagating along the mean magnetic field is investigated. It is shown that the α-effect can exist owing to the interaction between oppositely propagating two waves, provided that the initial fields have non-zero helicity. The result is discussed in the context of field-aligned currents and periodic particle flux variations in the earth's magnetosphere.

Type
Research Article
Information
Journal of Plasma Physics , Volume 40 , Issue 2 , October 1988 , pp. 353 - 358
Copyright
Copyright © Cambridge University Press 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Chen, L. & Hasegawa, A. 1974 J. Geophys. Res. 79, 1024.CrossRefGoogle Scholar
Hamabata, H., Namikawa, T. & Hosoya, Y. 1982 J. Plasma Phys. 28, 309.CrossRefGoogle Scholar
Iijima, T. & Potemra, T. A. 1978 J. Geophys. Res. 83, 599.CrossRefGoogle Scholar
Kokubun, S. & Nagata, T. 1965 Rep. Ionos. Space Res. Jpn, 19, 158.Google Scholar
Krause, F. & Rädler, K. H. 1981 Mean Field Magnetohydrodynamics and Dynamo Theory. Pergamon.Google Scholar
Moffatt, H. K. 1978 Magnetic Field Generation in Electrically Conducting Fluids. Cambridge University Press.Google Scholar
Namikawa, T. & Hamabata, H. 1982 a J. Plasma Phys. 27, 415.CrossRefGoogle Scholar
Namikawa, T. & Hamabata, H. 1982 b J. Plasma Phys. 28, 293.CrossRefGoogle Scholar
Namikawa, T., Hamabata, H. & Hosoya, Y. 1982 J. Plasma Phys. 28, 299.CrossRefGoogle Scholar
Parker, E. N. 1979 Cosmical Magnetic Fields. Oxford University Press.Google Scholar
Roberts, P. H. & Stix, M. 1971 The turbulent dymamo: a translation of a series of papers by F. Krause K. H. Rädler and M. Steenbeck. Technical Note 1A-60, NCAR, Boulder, Colorado.Google Scholar
Samson, J. C., Jacobs, J. A. & Rostoker, G. 1971 J. Geophys. Res. 76, 3675.CrossRefGoogle Scholar
Southwood, D. J. 1974 Planet. Space Sci. 16, 413.Google Scholar
Southwood, D. J. & Kivelson, M. G. 1981 J. Geophys. Res. 86, 5643.CrossRefGoogle Scholar
Steenbeck, M., Krause, F. & Rädler, K. H. 1966 Z. Naturf. 21a, 369.CrossRefGoogle Scholar
Takahashi, K., Higbie, P. R. & Baker, D. N. 1985 J. Geophys. Res. 90, 8308.CrossRefGoogle Scholar
Wilson, C. R. & Sugiura, M. 1961 J. Geophys. Res. 66, 4097.CrossRefGoogle Scholar
Yumoto, K., Eitoku, A. & Saito, T. 1983 Proceedings of the Fifth Symposium on Coordinated Observations of the Ionosphere and the Magnetosphere in the Polar Regions, p. 61. National Institute of Polar Research, Tokyo.Google Scholar