Determination of Transverse Density Structuring from Propagating MHD Waves in the Solar Atmosphere

Abstract

We present a Bayesian seismology inversion technique for propagating magnetohydrodynamic (MHD) transverse waves observed in coronal waveguides. The technique uses theoretical predictions for the spatial damping of propagating kink waves in transversely inhomogeneous coronal waveguides. It combines wave amplitude damping length scales along the waveguide with theoretical results for resonantly damped propagating kink waves to infer the plasma density variation across the oscillating structures. Provided the spatial dependence of the velocity amplitude along the propagation direction is measured and the existence of two different damping regimes is identified, the technique would enable us to fully constrain the transverse density structuring, providing estimates for the density contrast and its transverse inhomogeneity length scale.

References in corpus (3)

• Analytic approximate seismology of transversely oscillating coronal loops
• Damping of Fast Magnetohydrodynamic Oscillations in Quiescent Filament Threads
• Damping of filament thread oscillations: effect of the slow continuum

Cited by in corpus (17)

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• The behavior of transverse waves in nonuniform solar flux tubes. II. Implications for coronal loop seismology
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• MHD wave modes resolved in fine-scale chromospheric magnetic structures
• Model comparison for the density structure across solar coronal waveguides
• Novel data analysis techniques in coronal seismology
• Assessing the Capabilities of Dynamic Coronal Seismology of Alfvénic Waves through Forward Modeling
• Determination of the cross-field density structuring in coronal waveguides using the damping of transverse waves
• Comparison of damping mechanisms for transverse waves in solar coronal loops
• Magnetohydrodynamic Slow Mode with Drifting He${}^{++}$: Implications for Coronal Seismology and the Solar Wind
• Inference of magnetic field strength and density from damped transverse coronal waves
• Inferring the Coronal Density Irregularity from EUV Spectra