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《中国天文和天体物理学报(英文版)》 2003-04
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Solar Partial N-burst

Zong-Jun Ning, Yu-Ying Liu, Qi-Jun Fu and Fu-Ying Xu 1 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 2 Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008  
We present a new sub-class of type Ⅲ solar radio burst at the high frequencies around 6.0 GHz. In addition to a descending and an ascending branch on the dynamic spectrum, it has an inverted morphology different from the simple type U-burst. We call it "partial N-burst" because it is interpreted as the known N-burst minus its first branch. The partial N-burst presented here was detected among a reverse slope type Ⅲ (RS-Ⅲ) burst group prior to the type V solar radio continuum and was simultaneously recorded by two spectrometers at the National Astronomical Observatories, Chinese Academy of Sciences (NAOC, 5.20-7.60 GHz) and at Purple Mountain Observatory (PMO, 4.50-7.50 GHz) on 1999 August 25. After the N-burst and M-burst, the partial N-burst is a third piece of evidence for a magnetic mirror effect in solar radio observation, when the same electron is reflected at a pinched foot of a flare loop.
【Fund】: National Natural Science Foundation of China.
【CateGory Index】: P182
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【Co-citations】
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