Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985cha%26a...9...54w&link_type=abstract
Chinese Astronomy and Astrophysics, Volume 9, Issue 1, p. 54-59.
Astronomy and Astrophysics
Astrophysics
Scientific paper
The authors consider how the Alfvén fluctuation varies as it passes through a slow MHD shock, assuming the fluctuation to originate on the Sun and such slow shocks are present between 2 and 6 solar radii. The results are (1) low latitude region in the vicinity of the neutral sheet is where the fluctuation can propagate with no or little distortion; (2) high latitude region far from the neutral sheet is a region of small distortion only for low Alfvén-Mach numbers (about 0.3 or lower); (3) the observation of the Alfvén fluctuations in space is consistent with, and lends support to their originating in the Sun and the existence of slow shock around the Sun.
Tu Chuan-Yi
Wei Feng-Si
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