Abstract
A method of testing for the existence of Alfvén waves using only magnetic-field data is given. It is shown that cross-spectral analysis of the magnetic-field components can be a useful tool in distinguishing between Alfvén waves and magnetosonic waves in interplanetary space.
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Owens, A.J. A new test for Alfvén waves in interplanetary space. Astrophys Space Sci 38, 469–473 (1975). https://doi.org/10.1007/BF00647147
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DOI: https://doi.org/10.1007/BF00647147