首页|Components and Anisotropy of 3D QFP Waves During the Early Solar Eruption

Components and Anisotropy of 3D QFP Waves During the Early Solar Eruption

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The propagation of disturbances in the solar atmosphere is inherently three-dimensional(3D),yet comprehensive studies on the spatial structure and dynamics of 3D wave fronts are scarce.Here we conduct high-resolution 3D numerical simulations to investigate filament eruptions,focusing particularly on the 3D structure and genesis of extreme ultraviolet(EUV)waves.Our results demonstrate that the EUV wave front forms a dome-like configuration subdivided into three distinct zones.The foremost zone,preceding the flux rope,consists of fast-mode shock waves that heat the adjacent plasma.Adjacent to either side of the flux rope,the second zone contains expansion waves that cool the nearby plasma.The third zone,at the juncture of the first two,exhibits minimal disturbances.This anisotropic structure of the wave front stems from the configuration and dynamics of the flux rope,which acts as a 3D piston during eruptions—compressing the plasma ahead to generate fast-mode shocks and evacuating the plasma behind to induce expansion waves.This dynamic results in the observed anisotropic wave front.Additionally,with synthetic EUV images from simulation data,the EUV waves are observable in Atmospheric Imaging Assembly 193 and 211 Å,which are identified as the fast-mode shocks.The detection of EUV waves varies with the observational perspective:the face-on view reveals EUV waves from the lower to the higher corona,whereas an edge-on view uncovers these waves only in the higher corona.

Sun:coronaSun:coronal mass ejections(CMEs)shock waves

Jialiang Hu、Jing Ye、Yuhao Chen、Zhixing Mei、Shanshan Xu、Jun Lin

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Yunnan Observatories,Chinese Academy of Sciences,Kunming 650216,China

University of Chinese Academy of Sciences,Beijing 100049,China

Yunnan Key Laboratory of Solar Physics and Space Science,Kunming 650216,China

Yunnan Province China-Malaysia HF-VHF Advanced Radio Astronomy Technology International Joint Laboratory,Kunming 650216,China

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2024

10.1088/1674-4527/ad9255

天文和天体物理学研究
中国科学院国家天文台

天文和天体物理学研究

CSTPCD
影响因子：0.406
ISSN：1674-4527
年,卷(期)：2024.24(12)