SDO/AIA Observation of Kelvin-Helmholtz Instability in the Solar Corona

Abstract

We present observations of the formation, propagation and decay of vortex- shaped features in coronal images from the Solar Dynamics Observatory (SDO) associated with an eruption starting at about 2:30UT on Apr 8, 2010. The series of vortices formed along the interface between an erupting (dimming) region and the surrounding corona. They ranged in size from several to ten arcseconds, and traveled along the interface at 6-14 km/s. The features were clearly visible in six out of the seven different EUV wavebands of the Atmospheric Imaging Assembly (AIA). Based on the structure, formation, propagation and decay of these features, we identified these features as the first observations of the Kelvin-Helmholtz (KH) instability in the corona in EUV. The interpretation is supported by linear analysis and by MHD model of KH instability. We conclude that the instability is driven by the velocity shear between the erupting and closed magnetic field of the Coronal Mass Ejection (CME). The shear flow driven instability can play an important role in energy transfer processes in coronal plasma.

Cited by in corpus (56)

• Advances in Observing Various Coronal EUV Waves in the SDO Era and Their Seismological Applications (Invited Review)
• Partially Ionized Plasmas in Astrophysics
• Fine strand-like structure in the solar corona from MHD transverse oscillations
• Magnetohydrodynamic Modeling of the Solar Eruption on 2010 April 8
• A Well-Posed Kelvin-Helmholtz Instability Test and Comparison
• On the Nature and Genesis of EUV Waves: A Synthesis of Observations from SOHO, STEREO, SDO, and Hinode
• Observation and Modeling of Solar Jets
• Stability of rotating magnetized jets in the solar atmosphere. I. Kelvin-Helmholtz instability
• Damping of nonlinear standing kink oscillations: a numerical study
• The Kelvin-Helmholtz Instability at CME-Boundaries in the Solar Corona: Observations and 2.5D MHD Simulations
• Spectroscopic observations of evolving flare ribbon substructure suggesting origin in current sheet waves
• Kelvin-Helmholtz instability in partially ionized compressible plasmas
• The effects of resistivity and viscosity on the Kelvin-Helmholtz instability in oscillating coronal loops
• The passband integrationproperties of Birefringent filter
• Kelvin-Helmholtz instability in solar chromospheric jets: theory and observation
• Observing Kelvin-Helmholtz instability in solar blowout jet
• Energetics of the Kelvin-Helmholtz instability induced by transverse waves in twisted coronal loops
• Quiescent prominence dynamics observed with the Hinode Solar Optical Telescope . II. Prominence Bubble Boundary Layer Characteristics and the Onset of a Coupled Kelvin-Helmholtz Rayleigh-Taylor Instability
• Two Kinds of Dynamic Behavior in a Quiescent Prominence Observed by the NVST
• On Kelvin-Helmholtz and parametric instabilities driven by coronal waves
• Kelvin-Helmholtz instability of twisted magnetic flux tubes in the solar wind
• The instability and non-existence of multi-stranded loops, when driven by transverse waves
• Kelvin-Helmholtz instability of a coronal streamer
• Observations of the Kelvin-Helmholtz instability driven by dynamic motions in a solar prominence
• Multi-layered Kelvin-Helmholtz Instability in the Solar Corona
• Coronal cooling as a result of mixing by the nonlinear Kelvin--Helmholtz instability
• Solar Orbiter Observations of the Kelvin-Helmholtz Instability in the Solar Wind
• Is flare-ribbon fine structure related to tearing in the flare current sheet?
• Kelvin-Helmholtz instability of kink waves in photospheric twisted flux tubes
• Transition to turbulence in nonuniform coronal loops driven by torsional Alfven waves
• On Modeling the Kelvin--Helmholtz Instability in Solar Atmosphere
• Numerical simulations of Kelvin-Helmholtz instability: a two-dimensional parametric study
• Numerical Studies of the Kelvin-Hemholtz Instability in the Coronal Jet
• Observational Evidence of Sausage-Pinch Instability in Solar Corona by SDO/AIA
• Magnetic diffusion driven shear instability of solar flux tubes
• Kelvin--Helmholtz instability in a twisting solar polar coronal hole jet observed by \emph{SDO}/AIA
• Kelvin-Helmholtz instability on coronal mass ejecta in the lower corona
• Kelvin-Helmholtz instability in solar H-alpha surges
• Small-scale solar jet formation and their associated waves and instabilities
• The Evolution of Magnetic Rayleigh-Taylor Unstable Plumes and Hybrid KH-RT Instability into A Loop-like Eruptive Prominence
• Modeling a Propagating Sawtooth Flare Ribbon Structure as a Tearing Mode in the Presence of Velocity Shear
• Kelvin-Helmholtz instability in a current-vortex sheet at a 3D magnetic null
• Solar Jet on 2014 April 16 Modeled by Kelvin--Helmholtz Instability
• Flow instabilities in solar jets in their upstream and downstream regimes
• Kink instability of triangular jets in the solar atmosphere
• Kelvin-Helmholtz instability and Alfvenic vortex shedding in solar eruptions
• High mode magnetohydrodynamic waves propagation in a twisted rotating jet emerging from a filament eruption
• Evolution of Kelvin-Helmholtz Instability in the Fan-Spine Topology
• H$\alpha$ and EUV observations of a partial CME
• Quasi-periodic Fast-mode Magnetosonic Wave Trains Within Coronal Waveguides Associated with Flares and CMEs
• Shear instabilities in a fully compressible polytropic atmosphere
• Inward Propagating Plasma Parcels in the Solar Corona: Models with Aerodynamic Drag, Ablation, and Snowplow Accretion
• Observation of Large-Scale Kelvin-Helmholtz Instability Wave Driven by a Coronal Mass Ejection
• Stability of solar atmospheric structures harboring standing slow waves: An analytical model in a compressible plasma
• Magnetic reconnection and the Kelvin-Helmholtz instability in the solar corona
• Quasiperiodic Slipping Motion of Flare Ribbon Fine Structures Anchored in a Sunspot Light Bridge