Ulysses electron distributions fitted with Kappa functions
Ulysses electron distributions
Fast solar winds
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We fit Kappa functions to 16,000 velocity distribution functions measured in the solar wind by the electron plasma instrument on board Ulysses. Statistically, the electron distributions are observed to have important high velocity tails in the fast solar wind but are closer to a Maxwellian in the slow wind. We also discuss how this result could support a recent kinetic model of the solar wind proposed by Maksimovic, Pierrard and Lemaire .
CitationMaksimovic, M.; Pierrard, V.; Riley, P. (1997). Ulysses electron distributions fitted with Kappa functions. , Geophysical Research Letters, Vol. 24, Issue 9, 1151-1154, DOI: 10.1029/97GL00992.