Heating of coronal loops by random micro-scale energy releases

Details Heating of coronal loops by random micro-scale energy releases Heating of coronal loops by random micro-scale energy releases

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.505..257m&link_type=abstract

In: SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference and IAU Colloquium 188, 11 - 15 Jun

Physics

Coronal Heating, Coronal Loops, Hydrodynamics

Scientific paper

It was suggested by Parker (1988) that the solar corona is heated by numerous small localized events called nano-flares. High-resolution satellites (SOHO and TRACE) have shown a kind of very small-scale activity at transition-region temperatures (i.e., explosive events, micro-flares, blinkers, etc.). These events may serve as the building blocks of the heating mechanism of the solar atmosphere. In this paper, we present the results of numerical calculations that detail the response of the coronal plasma to micro-scale heating pulses in a magnetic loop. The energy input pulses are at periodical and random injections, located near the footpoint where the temperature is ≍104K. It is found that these successive energy inputs can maintain the plasma at typical coronal temperatures along the loop. The implications of the results upon the latest coronal loop observations are also discussed.

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