Three-dimensional MHD Model Of Active Region Loop Oscillations With Background Flow

Details Three-dimensional MHD Model Of Active Region Loop Oscillations With Background Flow Three-dimensional MHD Model Of Active Region Loop Oscillations With Background Flow

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21630204o&link_type=abstract

American Astronomical Society, AAS Meeting #216, #302.04; Bulletin of the American Astronomical Society, Vol. 41, p.847

Astronomy and Astrophysics

Astronomy

Scientific paper

Recent observations by Hinode satellite show that oscillating coronal loops with periods of several minutes contain cool flowing material at 100 km/s. The flow may affects significantly the oscillations and the damping of the wave energy. We model the oscillating loops with background flow in 3D MHD model of a bi-polar active region, that includes the effects of loop curvature and chromospheric boundary conditions. The oscillations are excited impulsively by a velocity pulse. We study the effects of flow magnitude, and loop parameters on the excitation and damping of the oscillations. The results of the parametric study have implication for coronal seismology, and for wave heating of active region coronal loops.

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