Abstract
The spatial structure of the transverse oscillations in the interplanetary magnetic field at 1 AU is studied by comparing the simultaneous observations by Explorer 33 and 35 satellites at the maximum separation of about 200R E. The anisotropy characteristics of these oscillations suggest that the oscillations sampled are Alfvén waves. It is found that the size of the region of the wave coherence is related to the solar wind velocity; the size is ∼80R E when the wind velocity is lower than ∼500 km s−1 but becomes less than this when the wind velocity is higher. An inference is made that the solar atmospheric turbulence contributing to the faster solar wind is finer in scale than that associated with the slower wind.
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References
Belcher, J. W. and Davis, L., Jr.: 1971,J. Geophys. Res. 76, 3534.
Behannon, K. W., Fairfield, D. H., and Ness, N. F.: 1968, NASA GSFC X-616-68-372.
Burlaga, L. F.: 1969,Solar Phys. 7, 54.
Burlaga, L. F.: 1971,J. Geophys. Res. 76, 4360.
Childers, D. D. and Russell, C. T.: 1972, inSolar Wind, NASA Sp.-308.
Howe, H., Binsack, J., Wang, C. G., and Clapp, E.: 1971, MIT CSR-TR-4.
Landau, L. D. and Lifshitz, E. M.: 1960,Electrodynamics of Continuous Media, Pergamon Press, London.
Siscoe, G. L., Davis, L., Jr., Coleman, P. J., Jr., Smith, E. J., and Jones, D. E.: 1968,J. Geophys. Res. 73, 61.
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A postgraduate student at the Tokai University
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Chang, S.C., Nishida, A. Spatial structure of transverse oscillations in the interplanetary magnetic field. Astrophys Space Sci 23, 301–314 (1973). https://doi.org/10.1007/BF00645159
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DOI: https://doi.org/10.1007/BF00645159