Physics
Scientific paper
Oct 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974hsde.rept...98r&link_type=abstract
In Arbeitsgemeinschaft für Weltraumforsch. Helios Satellite Sci. Data Evaluation p 98-112 (SEE N75-23393 14-88)
Physics
Helios Project, Interplanetary Medium, Magnetohydrodynamic Waves, Wave Propagation, Equations Of Motion, Inhomogeneity, Magnetic Variations, Satellite Observation, Solar Wind
Scientific paper
Since the Helios probe makes it possible to identify Alfven waves close to the sun, the radial dependence of Alfvenic induced magnetic fluctuations can be investigated. A simplified Alfven wave propagation model is proposed, and the equations of motion are derived. The propagation was studied for an axisymmetric solar wind, as well as an azimuthally dependent solar wind. As the occurrence of high speed solar wind streams and of interplanetary propagating Alfven waves does not depend very strongly on the solar cycle, interacting solar wind configurations with Alfvenic induced, azimuthally distributed magnetic fluctuations will be observed during the mission of Helios. As this spacecraft will observe the solar wind plasma and the interplanetary magnetic field on a smaller time scale and closer to the sun, these observations may provide a better insight to the models discussed.
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