A Probable Short Decimetric Type Ⅰ-like Noise Storm: Associated with Type Ⅲ Bursts? |
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作者姓名: | Rui-Xiang Xie Min Wang and Yi-Hua YanNational Astronomical Observatories Yunnan Observatory Chinese Academy of Sciences Kunming 650011 National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 |
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作者单位: | Rui-Xiang Xie,Min Wang and Yi-Hua YanNational Astronomical Observatories,Yunnan Observatory,Chinese Academy of Sciences,Kunming 650011;National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012 |
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基金项目: | SupportedbytheNationalNaturalScienceFoundationofChina. |
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摘 要: | A rare Type I-like noise storm was observed with the solar radio spectrometers (1.0-2.0 GHz and 2.60-3.8 GHz) at National Astronomical Observatories of China (NAOC) on September 23, 1998. We concentrate on checking the Type I-like noise storm occurred in the decay phase of a Type Ⅳ radio burst. This noise storm consists of many Type I bursts and isolated Type Ⅲ or Type Ⅲ pair bursts. It has a bandwidth of ≤0.5 GHz. The duration of each Type I burst is of the order of 100-300 ms. The total duration is greater than 11 minutes. The circular polarization
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