Fundamental solution of diffusion equation for Kappa gas: Diffusion length for suprathermal electrons in solar wind

MH Benetti, FEM Silveira, IL Caldas - Physical Review E, 2023 - APS
A recent numerical treatment of data obtained by the Parker Solar Probe spacecraft
describes the electron concentration in solar wind as a function of the heliocentric distance …

Towards a physical interpretation of the deformation parametrization in nonextensive statistics: Evidence for a generalization of the number of degrees of freedom in a …

FEM Silveira, MH Benetti - The European Physical Journal Plus, 2021 - Springer
We explore new ways to interpret the role played by the deformation q-parameter in
nonextensive statistics. A generalized polytropic γ γ-index is deduced with basis on the …

Suprathermal corrections to Bohm–Gross dispersion

FEM Silveira, MH Benetti, IL Caldas - Physics of Plasmas, 2022 - pubs.aip.org
A detailed resource to data analysis shows that the widely known van Hoven and Derfler–
Simonen laboratory results are far from reasonable agreement with the standard Bohm …

[HTML][HTML] Map of suprathermal onto nonextensive parameters describing Langmuir waves

FEM Silveira, MH Benetti - Fundamental Plasma Physics, 2023 - Elsevier
We propose a polytropic-like index that depends on the concentration and number of
degrees of freedom of a gas of charged particles following a nonextensive distribution. An …

Korteweg-de Vries Equation and Thomas-Fermi Distribution

KNMM Santos - 2022 - teses.usp.br
Plasma physics is generally associated with the treatment of regimes characterized by high
temperature and low densities, where quantum mechanical effects do not have a significant …