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25 Years of Self-Organized Criticality: Solar and Astrophysics

dc.contributor.authorAschwanden, M.J.
dc.contributor.authorCrosby, N.B.
dc.contributor.authorDimitropoulou, M.
dc.contributor.authorGeorgoulis, M.K.
dc.contributor.authorHergarten, S.
dc.contributor.authorMcAteer, J.
dc.contributor.authorMilovanov, A.V.
dc.contributor.authorMineshige, S.
dc.contributor.authorMorales, L.
dc.contributor.authorNishizuka, N.
dc.contributor.authorPruessner, G.
dc.contributor.authorSanchez, R.
dc.contributor.authorSharma, A.S.
dc.contributor.authorStrugarek, A.
dc.contributor.authorUritsky, V.
dc.date2016
dc.date.accessioned2016-03-23T11:28:18Z
dc.date.available2016-03-23T11:28:18Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/2664
dc.descriptionShortly after the seminal paper “Self-Organized Criticality: An explanation of 1/fnoise” by Bak et al. (1987), the idea has been applied to solar physics, in “Avalanches and the Distribution of Solar Flares” by Lu and Hamilton (1991). In the following years, an inspiring cross-fertilization from complexity theory to solar and astrophysics took place, where the SOC concept was initially applied to solar flares, stellar flares, and magnetospheric substorms, and later extended to the radiation belt, the heliosphere, lunar craters, the asteroid belt, the Saturn ring, pulsar glitches, soft X-ray repeaters, blazars, black-hole objects, cosmic rays, and boson clouds. The application of SOC concepts has been performed by numerical cellular automaton simulations, by analytical calculations of statistical (powerlaw-like) distributions based on physical scaling laws, and by observational tests of theoretically predicted size distributions and waiting time distributions. Attempts have been undertaken to import physical models into the numerical SOC toy models, such as the discretization of magneto-hydrodynamics (MHD) processes. The novel applications stimulated also vigorous debates about the discrimination between SOC models, SOC-like, and non-SOC processes, such as phase transitions, turbulence, random-walk diffusion, percolation, branching processes, network theory, chaos theory, fractality, multi-scale, and other complexity phenomena. We review SOC studies from the last 25 years and highlight new trends, open questions, and future challenges, as discussed during two recent ISSI workshops on this theme. © 2014, The Author(s).
dc.languageeng
dc.title25 Years of Self-Organized Criticality: Solar and Astrophysics
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeChaos theory
dc.subject.freeComplex networks
dc.subject.freeCosmic rays
dc.subject.freeCosmology
dc.subject.freeCriticality (nuclear fission)
dc.subject.freeMagnetohydrodynamics
dc.subject.freeMagnetosphere
dc.subject.freePlanets
dc.subject.freePulsars
dc.subject.freeRadiation belts
dc.subject.freeSatellites
dc.subject.freeSolar wind
dc.subject.freeSolvents
dc.subject.freeStability
dc.subject.freeStars
dc.subject.freeAnalytical calculation
dc.subject.freeAutomaton simulation
dc.subject.freeMagnetospheric substorms
dc.subject.freeMethods:statistical
dc.subject.freeSelf-organized criticality
dc.subject.freeStars: flare
dc.subject.freeSun: flares
dc.subject.freeWaiting time distributions
dc.subject.freeAstrophysics
dc.source.titleSpace Science Reviews
dc.source.volume198
dc.source.issue1-4
dc.source.page47-166
Orfeo.peerreviewedYes
dc.identifier.doi10.1007/s11214-014-0054-6
dc.identifier.scopus2-s2.0-84950326949


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