A5112893383- Solar and Space Plasma Dynamics
- Ionosphere and magnetosphere dynamics
- Astro and Planetary Science
- Geomagnetism and Paleomagnetism Studies
- Tropical and Extratropical Cyclones Research
- Photovoltaic System Optimization Techniques
- Stellar, planetary, and galactic studies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
Center for Astrophysics Harvard & Smithsonian
2021-2024
University of Chinese Academy of Sciences
2018-2022
Chinese Academy of Sciences
2018-2022
Yunnan Observatories
2018-2022
Magnetic reconnection is the key mechanism for energy release in solar eruptions, where high-temperature emission primary diagnostic investigating plasma properties during process. Non-thermal broadening of lines has been observed both current sheet (CS) and flare loop-top regions by UV spectrometers, but its origin remains unclear. In this work, we use a recently developed three-dimensional magnetohydrodynamic (MHD) simulation to model magnetic standard geometry reveal highly dynamic flows...
Abstract Solar flare above-the-loop-top (ALT) regions are vital for understanding solar eruptions and fundamental processes in plasma physics. Recent advances three-dimensional (3D) magnetohydrodynamic (MHD) simulations have revealed unprecedented details on turbulent flows MHD instabilities ALT regions. Here, the first time, we examine observable anisotropic properties of by applying a flow-tracking algorithm narrow-band extreme-ultraviolet images that observed from face-on viewing...
Abstract We deliberately select three flares to investigate heating effects of supra-arcade downflows (SADs) on the surrounding fan plasma. Prior work found in one flare that plasma around most SADs tends heat up or stay same temperature, accompanied by discernible signatures adiabatic due compression as well viscous motions extend this more and find are also present these events. The is dominant over each event. two M1.3 flares, being order about 0.02–0.18 MK s −1 , fairly comparable. In...
Multiple pieces of evidence have revealed the important role turbulence in physical processes solar eruptions, from particle acceleration to suppression conductive cooling. Radio observations density variation established a Kolmogorov-like spectrum for wind disturbance. Close Sun, measurements extreme ultraviolet (EUV) bands been used examine atmosphere. The Atmospheric Imaging Assembly onboard Solar Dynamics Observatory (SDO/AIA) has frequently diagnosing plasma properties due its complex...
ABSTRACT In this paper, we performed magnetohydrodynamics numerical experiments to look into the dynamic behaviour of current sheet (CS) between coronal mass ejection (CME) and associated solar flare, especially CS oscillation plasmoid motions in conditions. During evolution, disrupting magnetic configuration becomes asymmetric first buffer region at bottom CME bubble. The Rayleigh−Taylor instability deflected motion plasma driven by termination shock bubble cause oscillate around y-axis....
Abstract We have developed a tracking algorithm to determine the speeds of supra-arcade downflows (SADs) and set up system automatically track SADs measure some interesting parameters. By conducting an analysis six flares observed by Atmospheric Imaging Assembly on Solar Dynamics Observatory, we detect more smaller slower than prior work, due higher spatial resolution our observational data. The inclusion these events with directly results in lower median velocities widths but fitted...
Abstract Magnetic reconnection is a universal and fundamental process occurring in highly conductive magnetized plasma where field lines of opposite polarity reconfigure to lower energy state across different scales. It plays vital role shaping the dynamics solar corona heliosphere. also known be responsible for exchange processes Earth's magnetosphere, magnetic systems our system planets other astrophysical including black holes, blazars, quasars. Theoretical models laboratory experiments...