Kinematics and Energetics of the EUV Waves on 11 April 2013
arXiv:1903.12158 · doi:10.1007/s11207-019-1445-3
Abstract
In this study, we present the observations of extreme-ultraviolet (EUV) waves associated with an M6.5 flare on 2013 April 11. The event was observed by Solar Dynamics Observatory (SDO) in different EUV channels. The flare was also associated with a halo CME and type II radio bursts. We observed both fast and slow components of the EUV wave. The speed of the fast component, which is identified as a fast-mode MHD wave, varies in the range from 600 to 640 km s^-1 , whereas the speed of the slow-component is ~140 km s^-1 . We observed an unusual phenomenon that, as the fast-component EUV wave passes through two successive magnetic quasi-separatrix layers (QSLs), two stationary wave fronts are formed locally. We propose that part of the outward-propagating fast-mode EUV wave is converted into slow-mode magnetohydrodynamic waves, which are trapped in local magnetic field structures, forming successive stationary fronts. Along the other direction, the fast-component EUV wave also creates oscillations in a coronal loop lying ~225 Mm away from the flare site. We have computed the energy of the EUV wave to be of the order of 10^20 J.
26 pages, 11 figures, 1 table, Accepted for publication in Solar Physics
References in corpus (15)
- Advances in Observing Various Coronal EUV Waves in the SDO Era and Their Seismological Applications (Invited Review)
- High cadence observations of a global coronal wave by EUVI/STEREO
- The Kinematics of a Globally Propagating Disturbance in the Solar Corona
- First Evidence of Coexisting EIT Wave and Coronal Moreton Wave from SDO/AIA Observations
- Chirality and Magnetic Configurations of Solar Filaments
- The formation heights of coronal shocks from 2D density and Alfvén speed maps
- Understanding the Physical Nature of Coronal "EIT Waves"
- 3D magnetic reconnection and its application to solar flares
- Statistical Analysis of Large-scale EUV Waves Observed by STEREO/EUVI
- MHD Seismology of a Coronal Loop System by the First Two Modes of Standing Kink Waves
- Global coronal seismology
- Formation and eruption of a flux rope from the sigmoid active region NOAA 11719 and associated M6.5 flare: A multi-wavelength study
- Mode-Conversion of a Solar Extreme-Ultraviolet Wave over a Coronal Cavity
- Investigating the Conditions of the Formation of a Type II Radio Burst on 2014 January 8
- The energetics of a global shock wave in the low solar corona