论文标题
太阳耀斑期间能量颗粒的准周期加速度
Quasi-periodic Accelerations of Energetic Particles during a Solar Flare
论文作者
论文摘要
我们报告了2002年7月23日的X4.8耀斑冲动阶段（SOL2002-07-23T00：35）的高能颗粒中非平稳的准周期脉动（QPP）的观察。 X4.8耀斑是由Reuven Ramaty高能太阳能光谱成像仪，Nobeyama无线电极光计和Nobeyama RadioHeliograph同时测量的。在伽马射线线发射中检测到了大约50 s的准期。使用相同的方法，几乎在同一时间，在伽马射线连续体，硬X射线（HXR）和无线电排放中发现了约90 s的准周期。我们的观察结果表明，耀斑QPP应与通过重复磁重新连接在准周期加速的能量离子和非热电子相关。伽马射线线与连续性/HXR/无线电排放之间的不同准周期表明，该太阳火光的加速度或传播之间的加速度或传播明显差异。
We report the observation of non-stationary Quasi-Periodic Pulsations (QPPs) in high-energy particles during the impulsive phase of an X4.8 flare on 2002 July 23 (SOL2002-07-23T00:35). The X4.8 flare was simultaneously measured by the Reuven Ramaty High Energy Solar Spectroscopic Imager, Nobeyama Radio Polarimeters, and Nobeyama Radioheliograph. The quasi-period of about 50 s, determined by the wavelet transform, is detected in the Gamma-ray line emission. Using the same method, a quasi-period of about 90 s is found in Gamma-ray continuum, hard X-ray (HXR) and radio emissions during almost the same time. Our observations suggest that the flare QPPs should be associated with energetic ions and nonthermal electrons that quasi-periodically accelerated by the repetitive magnetic reconnection. The different quasi-periods between Gamma-ray line and continuum/HXR/radio emissions indicate an apparent difference in acceleration or propagation between energetic ions and nonthermal electrons of this solar flare.
