Moments of the anisotropic regularized $\kappa$-distributions
Abstract
For collisionless (or collision-poor) plasma populations which are well described by the -distribution functions (also known as the Kappa or Lorentzian power-laws) a macroscopic interpretation has remained largely questionable, especially because of the diverging moments of these distributions. Recently significant progress has been made by introducing a generic regularization for the isotropic -distribution, which resolves this critical limitation. Regularization is here applied to the anisotropic forms of -distributions, commonly used to describe temperature anisotropies, and skewed or drifting distributions of beam-plasma systems. These regularized distributions admit non-diverging moments which are provided for all positive , opening promising perspectives for a macroscopic (fluid-like) characterization of non-ideal plasmas.
Cite
@article{arxiv.1906.01406,
title = {Moments of the anisotropic regularized $\kappa$-distributions},
author = {Klaus Scherer and Marian Lazar and Edin Husidic and Horst Fichtner},
journal= {arXiv preprint arXiv:1906.01406},
year = {2019}
}
Comments
24 pages, 3 Figures