MHD Waves and Coronal Seismology: an overview of recent results

Abstract

Recent observations have revealed that MHD waves and oscillations are ubiquitous in the solar atmosphere, with a wide range of periods. We give a brief review of some aspects of MHD waves and coronal seismology which have recently been the focus of intense debate or are newly emerging. In particular, we focus on four topics: (i) the current controversy surrounding propagating intensity perturbations along coronal loops, (ii) the interpretation of propagating transverse loop oscillations, (iii) the ongoing search for coronal (torsional) Alfven waves and (iv) the rapidly developing topic of quasi-periodic pulsations (QPP) in solar flares.

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Cited by in corpus (171)

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• Observations of Dissipation of Slow Magneto-acoustic Waves in a Polar Coronal Hole
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• Coronal loop transverse oscillations excited by different driver frequencies
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• Statistical Evidence for the Existence of Alfvénic Turbulence in Solar Coronal Loops
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• Fast sausage modes in magnetic tubes with continuous transverse profiles: effects of a finite plasma beta
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• On the Parallel and Perpendicular Propagating Motions Visible in Polar Plumes: An Incubator For (Fast) Solar Wind Acceleration?
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• Properties of Streamer Wave Events Observed During the STEREO Era
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• Exploring the damping of Alfvén waves along a long off-limb coronal loop, up to 1.4 R${}_{\odot }$
• Influence of the Lower Atmosphere on Wave Heating and Evaporation in Solar Coronal Loops
• Investigating the damping rate of phase-mixed Alfven waves
• Resonant Damping of Kink Modes in Solar Coronal Slabs
• Observationally quantified reconnection providing a viable mechanism for active region coronal heating
• Excitation of negative energy surface magnetohydrodynamic waves in an incompressible cylindrical plasma
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• MHD waves in sunspots
• Excitation and evolution of coronal oscillations in self-consistent 3D radiative MHD simulations of the solar atmosphere
• Fast Standing Modes in Transversely Nonuniform Solar Coronal Slabs: Effects of a Finite Plasma Beta
• Inference of magnetic field strength and density from damped transverse coronal waves
• Direct observations of different sunspot waves influenced by umbral flashes
• Three dimensional MHD Modeling of Vertical Kink Oscillations in an Active Region Plasma Curtain
• On the Nature of Propagating Intensity Disturbances in Polar Plumes during the 2017 Total Solar Eclipse
• Non-equilibrium Ionization Effects on Extreme-Ultraviolet Emissions Modulated by Standing Sausage Modes in Coronal Loops
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• Synthetic Emissions of the Fe XXI 1354 Å Line from Flare Loops Experiencing Fundamental Fast Sausage Oscillations
• Secondary fast magnetoacoustic waves trapped in randomly structured plasmas
• Period ratios for standing kink and sausage modes in magnetized structures with siphon flow on the Sun
• The effects of transients on photospheric and chromospheric power distributions
• Pulsations of microwave emission from a solar flare in a twisted loop caused by intrinsic MHD oscillations
• Impulsively Generated Kink Wave Trains in Solar Coronal Slabs
• Standing Sausage Perturbations in Solar Coronal Slabs with Continuous Transverse Density Profiles: cutoff wavenumbers, evanescent eigenmodes, and oscillatory continuum
• The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes
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• Behaviour of oscillations in loop structures above active regions
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• A new view of the solar interface region from the Interface Region Imaging Spectrograph (IRIS)
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