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First Principles Magnetohydrodynamical Theory for the Expanding Box Model: Effects on Expansion-Induced Alfvén Wave Reflection
Sebastián Saldivia, Nicolás Villarroel-Sepúlveda, Sebastián Echeverría-Veas +2
The Expanding Box Model (EBM) has been widely employed to simulate multiscale plasma phenomena in the expanding solar wind by transforming the MHD equations to a co-moving, non-ine…
Knudsen number as a non-thermal parameter: possible origin of skewness in space plasma distributions
Iván Gallo-Méndez, Adolfo F. Viñas, Pablo S. Moya
Non-Maxwellian distributions and their origins in space plasma have attracted significant attention due to their prevalence and impact on various astrophysical and space-related ph…
Unifying Kappa Distribution Models for Non-Equilibrium Space Plasmas: A Superstatistical Approach Based on Moments
Abiam Tamburrini, Sergio Davis, Pablo S. Moya
From the perspective of non-equilibrium statistical mechanics, modeling the velocity distribution of particles in non-equilibrium, steady-state plasmas presents a significant chall…
The effect of plasma expansion on the dispersion properties of MHD waves
Sebastián Saldivia, Felipe A. Asenjo, Pablo S. Moya
In this work, we employ the set of ideal expanding magnetohydrodynamic (MHD) equations within the Expanding Box Model (EBM) framework to theoretically characterize the effects of r…
Dark energy as a battery for magnetic field generation in plasmas
Nicolás Villarroel-Sepúlveda, Pablo S. Moya, Felipe A. Asenjo +1
It is shown that in the spacetime dominated by a cosmological constant, in the far region of a Schwarzschild-de Sitter black hole, a seed magnetic field can be generated in an ambi…
Expanding CGL: The CGL double-adiabatic approximation in the Expanding Solar Wind
Sebastián Echeverría-Veas, Pablo S. Moya, Marian Lazar +2
Different in situ satellite observations within 0.3 to 1 AU from the Sun reveal deviations in the thermodynamics of solar wind expansion. Specifically, these deviations challenge t…