Radial variations of large-scale magnetohydrodynamic fluctuations in the solar wind

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19840004977.pdf (1.44 MB)

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https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/JA089iA08p06813

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https://doi.org/10.1029/JA089iA08p06813
 http://hdl.handle.net/11603/30523

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UMBC Goddard Planetary Heliophysics Institute (GPHI)

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Author/Creator ORCID

https://orcid.org/0000-0002-5317-988X

Date

1984-08-01

Type of Work

journal articles
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Citation of Original Publication

Burlaga, L. F., and M. L. Goldstein. “Radial Variations of Large-Scale Magnetohydrodynamic Fluctuations in the Solar Wind.” Journal of Geophysical Research: Space Physics 89, no. A8 (1984): 6813–17. https://doi.org/10.1029/JA089iA08p06813.

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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract

Two time periods are studied for which a relatively complete set of magnetic field and plasma measurements are available at both 1 AU (from IMP 8 and ISEE 3) and near 4 to 5 AU (from Voyager 1). One of these periods is characterized by the predominance of corotating streams, whereas many transient flows were observed in the second period. The evolution of these two flow systems with heliocentric distance is studied by using power spectral techniques. The power spectra for the system of transient flows are consistent with the hypothesis of turbulent evolution, including an inverse cascade of magnetic helicity to large scales. The power spectra for the system of corotating flows cannot be described so simply.