Physics
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88...85s&link_type=abstract
Journal of Geophysical Research, vol. 88, Jan. 1, 1983, p. 85-95.
Physics
19
Bow Waves, International Sun Earth Explorer 3, Ions, Low Frequencies, Shock Waves, Interplanetary Magnetic Fields, Protons, Solar Wind, Wave Scattering
Scientific paper
Three examples are presented of observations of upstream ions and low-frequency waves made at ISEE 3 at distances of up to 200 earth radii upstream from the earth's bow shock. The observations demonstrate that even at 200 earth radii, weak scattering plays an important role in the transport of upstream ions. At ISEE 3, during long-lasting events, a correlation is observed between the growth of the waves and the intensity of the upstream ions. An increase in the number of pitch-angle-scattered ions, frequently with a moderate amount of ions having pitch angles greater than 90 deg, is observed, and this is correlated with the growth of the waves. It is concluded that during long-lasting events an equilibrium is reached where the region between the spacecraft and the bow shock contains a significant amount of low-frequency wave activity, together with significant pitch angle scattering.
Reinhard Rüdeger
Roelof Edmond C.
Sanderson T. R.
Smith Edward. J.
Wenzel Klaus-Peter
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