Heliosheath: Diffusion Entropy Analysis and Nonextensivity q-Triplet

Abstract

In this paper we investigate the scaling behavior, based on Diffusion Entropy Analysis and Standard Deviation Analysis, of the magnetic field strength fluctuations recorded by Voyager-I in the heliosphere. The Voyager-I data set exhibits scaling behavior and may follow Levy-type probability distribution. A general fractional-order spatial and temporal diffusion model could be utilized for the interpretation of this Levy-type behavior in comparison to Gaussian behavior. This result confirms earlier studies of scaling behavior of the heliospheric magnetic field strength fluctuations based on non-extensive statistical mechanics leading to the determination of the nonextensivity q-triplet.