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Estimation and comparison of quasilinear electron heating in the shock foot at Jupiter and Earth
Author(s) -
Moses S. L.,
Coroniti F. V.,
Kennel C. F.,
Scarf F. L.
Publication year - 1985
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl012i009p00609
Subject(s) - jupiter (rocket family) , physics , amplitude , whistler , electron , bow shock (aerodynamics) , geophysics , shock wave , computational physics , shock (circulatory) , plasma , anisotropy , atmospheric sciences , optics , mechanics , astronomy , medicine , space shuttle , quantum mechanics
We develop a simple quasilinear model to estimate the electron heating that occurs in the foot of a supercritical, quasiperpendicular shock through interactions with electrostatic waves generated by reflected ions. At earth the increase in electron thermal energy calculated using the measured wave amplitudes is negligible, while at Jupiter it is comparable with the observed temperature gain across the shock. The anisotropic quasilinear heating should destabilize whistler mode waves in the foot. These have been detected by the plasma wave instrument on Voyager with amplitudes sufficient to isotropize the electron distribution.