Wave Heating and Nonlinear Dynamics of Coronal Loops

Details Wave Heating and Nonlinear Dynamics of Coronal Loops Wave Heating and Nonlinear Dynamics of Coronal Loops

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aspc..184..248b&link_type=abstract

Third Advances in Solar Physics Euroconference: Magnetic Fields and Oscillations, ASP Conference Series vol.184, p. 248-252. Eds

Physics

Mhd, Wave Heating, Sun: Magnetic Fields, Sun: Corona, Sun: Atmospheres

Scientific paper

We present the first results of 2.5D nonlinear magnetohydrodynamic wave heating simulations of solar coronal loops with inclusion of the modeling of the coupling to the transition region and chromosphere. Magnetic flux tubes with fixed lengths are considered but the coronal extent of the loops as situated in between the two transition regions can vary dynamically. The numerical simulations were carried out with the Versatile Advection Code. The loops are excited with linearly polarized Alfvén waves at the chromospheric base. The main finding is that resonant absorption is not efficient since most of the Poynting flux that enters the loop will be used to support all the nonlinearly generated magnetoacoustic motions and the corresponding compression of coronal plasma.

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