Coexistence of Self-Organized Criticality and Intermittent Turbulence in the Solar Corona

Abstract

An extended data set of extreme ultraviolet images of the solar corona provided by the SOHO spacecraft are analyzed using statistical methods common to studies of self-organized criticality (SOC) and intermittent turbulence (IT). The data exhibits simultaneous hallmarks of both regimes, namely power law avalanche statistics as well as multiscaling of structure functions for spatial activity. This implies that both SOC and IT may be manifestations of a single complex dynamical process entangling avalanches of magnetic energy dissipation with turbulent particle flows.

4 pages, 4 figures

References in corpus (1)

• Intensity Thresholds and the Statistics of the Temporal Occurrence of Solar Flares

Cited by in corpus (12)

• 25 Years of Self-Organized Criticality: Solar and Astrophysics
• Intermittency Spectra of the Magnetic Field in Solar Active Regions
• 25 Years of Self-Organized Criticality: Numerical Detection Methods
• Self-Organized Criticality in Stellar Flares
• Reconnection-Driven Magnetohydrodynamic Turbulence in a Simulated Coronal-Hole Jet
• The Poissonian Origin of Power Laws in Solar Flare Waiting Time Distributions
• Formation and Evolution of Coherent Structures in 3D Strongly Turbulent Magnetized Plasmas
• Macroscopic control parameter for avalanche models for bursty transport
• Theory and Experiments for Disordered Elastic Manifolds, Depinning, Avalanches, and Sandpiles
• Long-range correlations with finite-size effects from a superposition of uncorrelated pulses with power-law distributed durations
• The role of field correlations on turbulent dissipation
• Reconciling Power Law Slopes in Solar Flare and Nanoflare Size Distributions