Heating of coronal loops by tearing turbulence

Details Heating of coronal loops by tearing turbulence Heating of coronal loops by tearing turbulence

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.220..129b&link_type=abstract

In ESA The Hydromagnetics of the Sun p 129-132 (SEE N85-25091 14-92)

Physics

1

Coronal Loops, Plasma Turbulence, Solar Heating, Tearing Modes (Plasmas), Gauge Theory, Photosphere, Stellar Motions

Scientific paper

The heating of a coronal loop by reconnection, in response to slow photospheric motions is discussed. A generalized version of Taylor's hypothesis is used to show that the field evolves through a sequence of linear force-free states (inverse delta B = alpha B), where a helicity evolution equation is used to determine alpha (t). It is shown that the method is invariant to the choice of gauge. General evolution equations of a coronal loop, modeled as a straight cylinder, are derived. For solid body motions, it is shown that alpha is constant in time, and the heating is calculated.

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