Statistics – Computation
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....93.3949w&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 93, May 1, 1988, p. 3949-3957. NSF-supported research.
Statistics
Computation
13
Halley'S Comet, Ion Cyclotron Radiation, Magnetohydrodynamic Waves, Solar Wind, Wave Excitation, Whistlers, Computational Astrophysics, Computerized Simulation, Electrostatic Waves, Low Frequencies, Pitch (Inclination), Comets, Excitation, Whistlers, Waves, Polarization, Ions, Ice Mission, Spacecraft Observations, Protons, Frequencies, Electrostatic Effects, Electromagnetic Effects, Models, Calculations, Parameters
Scientific paper
The present study has been motivated by the ICE wave measurements. It is found that the newborn cometary ions, particularly the protons, can excite whistlers and waves with frequencies much higher than the proton gyrofrequency but with mixed electrostatic and electromagnetic polarization. For the case of oblique propagation the newborn ions are treated as if they are unmagnetized. This is justified not only because the wave frequencies are high but also because the growth rates are large. On the other hand in the case of parallel propagation the growth rate is much smaller, and the excitation process seems to be unimportant.
He Xian-Tu
Price Channon P.
Wu Shang-Chen
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