Physics
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88.7941c&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 88, Oct. 1, 1983, p. 7941-7957.
Physics
65
Hiss, Plasmasphere, Space Plasmas, Whistlers, Electron Distribution, Landau Damping, Polarization (Waves), Wave Propagation
Scientific paper
An explicit treatment of wave growth and damping due to both cyclotron and Landau resonant electrons is given in an attempt to simulate the basic properties of electron cyclotron resonant generation and the subsequent accessibility of the emission to regions far from the source are demonstrated by computing ray path integrated gains from various realistic model electron distributions using a three-dimensional ray tracing code. The dependence of local spatial growth and damping rates on the energetic electron distribution function, wave frequency, and wave normal angle is examined, and the characteristics of path integrated gains acquired during single ray transits through a realistic model plasmasphere are described. The importance of recycling wave energy back to the growth region is investigated, obtaining the net gain of waves arriving at specific observation points as a function of the direction of arrival following several equatorial transits. These general results are used to explain the characteristic features of plasmaspheric hiss.
Church S. R.
Mansergh Thorne Richard
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