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Self-Organized Criticality in Solar Physics and Astrophysics View all abstracts by submitter

Markus J. Aschwanden   Submitted: 2010-02-27 11:17

The concept of ``self-organized criticality'' (SOC) has been introduced by Bak, Tang, and Wiesenfeld (1987) to describe the statistics of avalanches on the surface of a sandpile with a critical slope, which produces a scale-free powerlaw size distribution of avalanches. In the meantime, SOC behavior has been identified in many nonlinear dissipative systems that are driven to a critical state. On a most general level, SOC is the statistics of coherent nonlinear processes, in contrast to the Poisson statistics of incoherent random processes. The SOC concept has been applied to laboratory experiments (of rice or sand piles), to human activities (population growth, language, economy, traffic jams, wars), to biophysics, geophysics (earthquakes, landslides, forest fires), magnetospheric physics, solar physics (flares), stellar physics (flares, cataclysmic variables, accretion disks, black holes, pulsar glitches, gamma ray bursts), and to galactic physics and cosmology.

Authors: Markus J. Aschwanden
Projects: RHESSI

Publication Status: Journal of Applied Functional Analysis ... (subm, Febr 27, 2010), Proc. of 3rd Internat. Interdisciplinary Symposium on Chaos and Complex Systems (CCS2010), Istanbul, Turkey, 21-24 May, 2010
Last Modified: 2010-03-01 08:48
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