AI 中文总结
该研究利用地球和太阳轨道飞行器的双视角，结合多种仪器数据，对 X 级耀斑中不对称非热环进行观测。通过分析微波和硬 X 射线特征，揭示了能量依赖的电子行为，并用微波磁诊断约束磁结构，支持了能量相关电子过程的自洽图像。
AI 中文摘要
我们报告了 2024 年 5 月 15 日一次 X 级耀斑的双视角微波和硬 X 射线观测结果，利用了从地球的前侧视图和太阳轨道飞行器（SolO）的后侧视角的独特几何结构。使用西伯利亚射电日像仪（SRH）以及查山宽带太阳毫米波光谱仪（CBSmm）和 STIX 数据的空间分辨成像光谱，我们在不对称磁场中识别出一组非热耀斑环，微波源位于环顶附近，硬 X 射线源与南足点相关。与硬 X 射线相比，微波发射呈现相反的上升趋势、时间剖面中增加的时间滞后以及独特的“SHH”光谱模式，这归因于高能电子在不对称磁结构中的能量依赖捕获和沉降。通量脉动及其光谱和极化特征与间歇性粒子加速一致而非磁流体动力学波调制。微波磁诊断通过非线性无力场（NLFFF）外推得到证实，对三维磁结构提供关键约束。双视角通量剖面比较和跨波长一致的准周期脉动（QPP）特征共同支持了这些不对称环中能量依赖电子捕获、沉降和传输的自洽图像。
英文摘要
We report dual-perspective microwave and HXR observations of an X-class flare on 2024 May 15, taking advantage of the unique geometry of a front-side view from the Earth and a back-side perspective from the Solar Orbiter (SolO). Using spatially resolved imaging spectroscopy from Siberian Radioheliograph (SRH) together with Chashan Broadband Solar millimeter spectrometer (CBSmm) and STIX data, we identify a set of nonthermal flaring loops in an asymmetric magnetic field, with microwave sources located near the loop top and HXR sources associated with the southern footpoint. Compared with HXR, the microwave emission shows an opposite ascending trend, an increasing time lag in time profile, and a distinctive ``SHH'' spectral pattern, which we attribute to energy-dependent trapping and precipitation of energetic electrons in an asymmetric magnetic configuration. Flux pulsations and their spectral and polarization signatures are consistent with intermittent particle acceleration rather than MHD wave modulation. Microwave magnetic diagnostics, corroborated by non-linear force free field (NLFFF) extrapolation, provide key constraints on the three-dimensional magnetic configuration. The dual-perspective flux profile comparison and consistent QPP signatures across wavelengths together support a self-consistent picture of energy-dependent electron trapping, precipitation, and transport in these asymmetric loops.
Comments15 pages, 7 figures; Accepted for publication in ApJL
