| 短分米波段上的长周期脉动现象 |
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| 引用本文： | 汪敏,谢瑞祥.短分米波段上的长周期脉动现象[J].天文研究与技术,1997(2). |
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| 作者姓名： | 汪敏 谢瑞祥 |
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| 作者单位： | 中国科学院云南天文台 |
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| 摘 要： | 在１９９０年７月３０日观测到的太阳射电大爆发中，在１４２０ＭＨｚ和２０００ＭＨｚ两个波段上发现了长周期（数＋秒）的脉冲现象。经数据处理分析，发现了几个特点：（１）脉冲的宽带大于６００ＭＨｚ。（２）１４２０ＭＨｚ上的脉动的周期较２０００ＭＨｚ上脉动的周期大，相对强度也是前者较大。（３）脉冲的相对强度随脉冲周期的增大而增大，呈较好的线性关系
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| 关 键 词： | 太阳 射电爆发 脉动 |
Long-Period Pulsations at Short Dm Wavelength |
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| Wang Min,Xie Ruixiang.Long-Period Pulsations at Short Dm Wavelength[J].Astronomical Research & Technology,1997(2). |
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| Authors: | Wang Min Xie Ruixiang |
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| Abstract: | A great solar radio burst was observated at Yunnan Observatory on July 30,1990.In this burst,the long periodic(several tens of second)pulsatons were found at 1420MHz and 2000MHz.It is found that: 1 The bandwidth of the pulsations is larger than 600MHz. 2 The periods of the pulses at 1420MHz are larger than ones at 2000MHz. 3 The period of the pulse rises when the relative amplitude increases, and theyave an approximately linear relationship. |
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| Keywords: | Sun Radio burst Pulsation |
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