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Resonantly Damped Propagating Kink Waves in Longitudinally Stratified Solar Waveguides View all abstracts by submitter

Roberto Soler   Submitted: 2011-05-03 03:31

It has been shown that resonant absorption is a robust physical mechanism to explain the observed damping of magnetohydrodynamic (MHD) kink waves in the solar atmosphere due to naturally occurring plasma inhomogeneity in the direction transverse to the direction of the magnetic field. Theoretical studies of this damping mechanism were greatly inspired by the first observations of post-flare standing kink modes in coronal loops using the Transition Region And Coronal Explorer (TRACE). More recently, these studies have been extended to explain the attenuation of propagating coronal kink waves observed by the Coronal Multi-Channel Polarimeter (CoMP). In the present study, for the first time we investigate the properties of propagating kink waves in solar waveguides including the effects of both longitudinal and transverse plasma inhomogeneity. Importantly, it is found that the wavelength is only dependent on the longitudinal stratification and the amplitude is simply a product of the two effects. In light of these results the advancement of solar atmospheric magnetoseismology by exploiting high spatial/temporal resolution observations of propagating kink waves in magnetic waveguides to determine the length scales of the plasma inhomogeneity along and transverse to the direction of the magnetic field is discussed.

Authors: Roberto Soler, Jaume Terradas, Gary Verth, Marcel Goossens
Projects: None

Publication Status: Accepted for publication in ApJ
Last Modified: 2011-05-03 08:46
Go to main E-Print page  Spatially and Spectrally Resolved Observations of a Zebra Pattern in Solar Decimetric Radio Burst  Transition Region Emission in Solar Flares  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

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