Abstract
Abstract. Kappa distributions describe velocities and energies of plasma populations in
space plasmas. The statistical origin of these distributions is associated
with the framework of nonextensive statistical mechanics. Indeed, the kappa
distribution is derived by maximizing the q entropy of Tsallis, under the
constraints of the canonical ensemble. However, the question remains as to
what the physical origin of this entropic formulation is. This paper shows
that the q entropy can be derived by adapting the additivity of energy and
entropy.
Funder
National Aeronautics and Space Administration
Cited by
32 articles.
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