Resonant absorption of surface sausage and surface kink modes under photospheric conditions

Abstract

We study the effect of resonant absorption of surface sausage and surface kink modes under photospheric conditions where the slow surface sausage modes undergo resonant damping in the slow continuum and the surface kink modes in the slow and Alfvén continua at the transitional layers. We use recently derived analytical formulas to obtain the damping rate (time). By considering linear density and linear pressure profiles for the transitional layers, we show that resonant absorption in the slow continuum could be an efficient mechanism for the wave damping of the slow surface sausage and slow surface kink modes whilst the damping rate of the slow surface kink mode in the Alfvén continuum is weak. It is also found that the resonant damping of the fast surface kink mode is much stronger than that of the slow surface kink mode, showing a similar efficiency as under coronal conditions. It is worth to notice that the slow body sausage and kink modes can also resonantly damp in the slow continuum for those linear profiles.

arXiv comment19 pages, 13 figures, published in ApJ

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Cited by in corpus (12)

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• Amplitudes and energy fluxes of simulated decayless kink oscillations
• Wave heating in gravitationally stratified coronal loops in the presence of resistivity and viscosity
• Magnetoacoustic Wave Energy Dissipation in the Atmosphere of Solar Pores
• Resonant absorption in expanding coronal magnetic flux tubes with uniform density
• Damping of slow surface sausage modes in photospheric waveguides
• Damping of slow surface kink modes in solar photospheric waveguides modeled by one-dimensional inhomogeneities
• Mixed properties of magnetohydrodynamic waves undergoing resonant absorption in the cusp continuum
• The effect of magnetic twist on resonant absorption of slow sausage waves in magnetic flux tubes
• The effect of flow on resonant absorption of slow MHD waves in magnetic flux tubes
• The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes
• Effects of external flow on resonant absorption of coronal loop kink oscillations driven by an external fast wave: Selective excitation problem