The dynamic formation of quasi-static active region loops

Details The dynamic formation of quasi-static active region loops The dynamic formation of quasi-static active region loops

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981soph...70...97c&link_type=abstract

Solar Physics, vol. 70, Mar. 1981, p. 97-113. Research supported by the Science Research Council.

Physics

26

Coronal Loops, Magnetohydrodynamics, Solar Activity, Solar Physics, Hydrodynamic Equations, Mathematical Models, Solar Atmosphere, Solar Flares, Thermal Instability, Velocity Distribution

Scientific paper

The dynamic formation of a quasi-static loop is analyzed with emphasis on the closed loop topology in the active region plasma. A complete system of hydrodynamic equations is introduced and assumptions underlying the boundary and initial conditions of the problem are discussed in detail. The implications of this analysis for the evolution of flare plasmas are then examined. In particular, it is shown that the energy flux emanating from an excited coronal source leads to the dynamic evaporation of cool transition-zone and chromospheric material. It is concluded that, despite thermal instability, a quasi-static model should adequately describe the gross features of quiescent coronal loops.

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