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EP: Fachverband Extraterrestrische Physik

EP 4: Sun and Heliosphere II

EP 4.7: Vortrag

Mittwoch, 1. April 2020, 12:15–12:30, H-HS VIII

The kappa-cook book — •Klaus Scherer, Horst Fichtner, Marian Lazar, and Edin Husidic — Ruhr Universität Bochum, Institute for Theoretical Physics IV

Recently the standard kappa-distribution (SKD) was extended by the regularized kappa distribution (RKD), to avoid some of the problems of the SKD. Here we present a generalization of the kappa distributions and discuss the applicability of the various cases to data. We compare some of the different kappa distribution commonly used in literature. We show that for kappa values larger than three all of these distributions lead to very similar results, but for lower kappa values one has to use the regularized types to avoid unphysical behavior, for example too high contributions from superluminal particles.