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.

19 pages, 13 figures, published in ApJ

References in corpus (8)

• Multiwavelength studies of MHD waves in the solar chromosphere: An overview of recent results
• Analytic approximate seismology of transversely oscillating coronal loops
• Heating by transverse waves in simulated coronal loops
• Damping of filament thread oscillations: effect of the slow continuum
• An Inside Look at Sunspot Oscillations with Higher Azimuthal Wavenumbers
• Alfvén Waves in the Structured Solar Corona
• Resonant Absorption of Axisymmetric Modes in Twisted Magnetic Flux Tubes
• Observations of apparent superslow wave propagation in solar prominences

Cited by in corpus (7)

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• Resonant absorption in expanding coronal magnetic flux tubes with uniform density
• Damping of slow surface kink modes in solar photospheric waveguides modeled by one-dimensional inhomogeneities
• The effect of flow on resonant absorption of slow MHD waves in magnetic flux tubes
• Mixed properties of magnetohydrodynamic waves undergoing resonant absorption in the cusp continuum
• The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes