Physics
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.2917l&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A3, March 1, 1992, p. 2917-2925. Research sponsored by DOE.
Physics
18
Extremely Low Radio Frequencies, International Sun Earth Explorers, Magnetometers, Solar Wind, Wave Packets, Circular Polarization, Electron Energy, Interplanetary Magnetic Fields, Ion Cyclotron Radiation, Wave Propagation
Scientific paper
A new class of ULF waves with periods near 3 s in the earth's upstream region is found by examining the high time resolution magnetic field data from the ISEE spacecraft. These waves are observed in the part of the upstream region which is magnetically connected to the bow shock, but only when the solar wind plasma beta is high (greater than 1). The waves are always right-handed, nearly circularly polarized in the spacecraft frame. The directions of the wave vectors are in the general direction of the average magnetic field, and the waves are convected downstream in the spacecraft frame. This study of these waves has shown that they appear to be intrinsically left-handed ion cyclotron waves in the plasma rest frame.
Gosling Jack T.
Le Guan
Russell Christopher T.
Thomsen Michelle F.
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