25 years of self-organized criticality: concepts and controversies

NW Watkins, G Pruessner, SC Chapman… - Space Science …, 2016 - Springer
Introduced by the late Per Bak and his colleagues, self-organized criticality (SOC) has been
one of the most stimulating concepts to come out of statistical mechanics and condensed …

Structures in magnetohydrodynamic turbulence: Detection and scaling

VM Uritsky, A Pouquet, D Rosenberg, PD Mininni… - Physical Review E …, 2010 - APS
We present a systematic analysis of statistical properties of turbulent current and vorticity
structures at a given time using cluster analysis. The data stem from numerical simulations of …

Power-law statistics of driven reconnection in the magnetically closed corona

KJ Knizhnik, VM Uritsky, JA Klimchuk… - The Astrophysical …, 2018 - iopscience.iop.org
Numerous observations have revealed that power-law distributions are ubiquitous in
energetic solar processes. Hard X-rays, soft X-rays, extreme ultraviolet radiation, and radio …

Spatial distribution of the eddy diffusion coefficients in the plasma sheet during quiet time and substorms from THEMIS satellite data

M Stepanova, V Pinto, JA Valdivia… - Journal of Geophysical …, 2011 - Wiley Online Library
During the last decade, a number of studies have shown that turbulent processes in the
plasma sheet are very important for the analysis of the formation of quasi‐stable plasma …

Stochastic coupling of solar photosphere and corona

VM Uritsky, JM Davila, L Ofman… - The Astrophysical …, 2013 - iopscience.iop.org
The observed solar activity is believed to be driven by the dissipation of nonpotential
magnetic energy injected into the corona by dynamic processes in the photosphere. The …

Criticality and turbulence in a resistive magnetohydrodynamic current sheet

AJ Klimas, VM Uritsky - Physical Review E, 2017 - APS
Scaling properties of a two-dimensional (2d) plasma physical current-sheet simulation
model involving a full set of magnetohydrodynamic (MHD) equations with current-dependent …