Self-Regulation of Solar Coronal Heating Process via Collisionless Reconnection Condition

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dc.creatorUzdensky, Dmitri A.
dc.date2007-12-23
dc.date.accessioned2026-07-07T11:54:49Z
dc.date.available2026-07-07T11:54:49Z
dc.descriptionI propose a new paradigm for solar coronal heating viewed as a self-regulating process keeping the plasma marginally collisionless. The mechanism is based on the coupling between two effects. First, coronal density controls the plasma collisionality and hence the transition between the slow collisional Sweet-Parker and the fast collisionless reconnection regimes. In turn, coronal energy release leads to chromospheric evaporation, increasing the density and thus inhibiting subsequent reconnection of the newly-reconnected loops. As a result, statistically, the density fluctuates around some critical level, comparable to that observed in the corona. In the long run, coronal heating can be represented by repeating cycles of fast reconnection events (nano-flares), evaporation episodes, and long periods of slow magnetic stress build-up and radiative cooling of the coronal plasma.
dc.description4 pages; Phys. Rev. Lett., in press
dc.identifierhttps://arxiv.org/abs/0712.3941
dc.identifierhttp://arxiv.org/abs/0712.3941
dc.identifierPhys.Rev.Lett.99:261101,2007
dc.identifierdoi:10.1103/PhysRevLett.99.261101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205042
dc.subjectAstrophysics
dc.subjectPlasma Physics
dc.subjectSpace Physics
dc.titleSelf-Regulation of Solar Coronal Heating Process via Collisionless Reconnection Condition
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