Topological Dissipation & The Solar Corona

Physics

Scientific paper

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Scientific paper

Reconnection in the solar corona has to take place, as was convincingly shown by tet{Parker72}, the question remains if it is sufficient to heat the corona. One of the major problems in coronal physics, is modeling reconnection. Reconnection is the basis of most heating models, in spite the fact that we really don't know how reconnection works. Simulating reconnection with realistic parameters is highly problematic and the solar corona has a parameter space not well explored. Here I try to give a hint of what conclusions one can reach about reconnection from large scale simulations of the solar corona. A model of the solar corona with a numerical diffusion reproduces a number of observables, and seem to reproduce the corona well, only using minimal assumptions. The overall well reproduced corona, means that it is highly likely that reconnection does not differ much from the diffusion scheme of the numerical code. That means that reconnection in the solar corona transfers most of the liberated magnetic energy into heat locally and mechanisms such as waves and high energy particles can not carry the a significant part of the energy released in reconnection.

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