Broadband radio bursts and fine structures during the great solar event on 14 July 2000
文献类型：期刊论文
| 作者 | Wang, S. J. ; Yan, Y. H. ; Zhao, R. Z. ; Fu, Q. J. ; Tan, C. M. ; Xu, L. ; Lin, H. |
| 刊名 | Solar Physics
 |
| 出版日期 | 2001 |
| 卷号 | 204期号:40180页码:155-166 |
| 关键词 | microwave-bursts magnetic reconnection flare emission spikes corona ghz |
| ISSN号 | 0038-0938 |
| 通讯作者 | 北京8701信箱 |
| 英文摘要 | 25 MHz-7.6 GHz global and detailed (fine structure - FS) radio spectra are presented, which were observed in the NOAA 9077 active region for the Bastille Day (14 July 2000) flare at 10:10-11:00 UT. Besides broadband radio bursts, high-resolution dynamic spectra reveal metric type II burst, decimetric type IV burst and various decimetric and microwave FSs, such as type III bursts, type U bursts, reverse-slope (RS)-drifting burst, fiber bursts, patch and drifting pulsation structure (DPS). The peak-flux-density spectrum of the radio bursts over the range 1.0-7.6 GHz globally appears as a U-shaped signature. Analyzing the features of backbone and herringbones of the type II burst, the speeds of shock and relevant energetic electron beams were estimated to be 1100 km s(-1) and 58 500 km s(-1), respectively. Also the time sequence of the radio emission is analyzed by comparing with the hard X-rays (HXRs) and the soft X-rays (SXRs) in this flare. After the maxima of the X-rays, the radio emission in the range 1.0-7.6 GHz reached maxima first at the higher frequency, then drifted to the lower frequency. This comparison suggested that the flare included three successive processes: firstly the X-rays rose and reached maxima at 10:10-10:23 UT, accompanied by fine structures only in the range 2.6-7.6 GHz; secondly the microwave radio emission reached maxima accompanied by many fine structures over the range 1.0-7.6 GHz at 10:23-10:34 UT; then a decimetric type IV burst and its associated FSs (fibers) in the range 1.0-2.0 GHz appeared after 10:40 UT. |
| 学科主题 | 空间环境 |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/144]  |
| 专题 | 国家空间科学中心_空间环境部 |
| 推荐引用方式 GB/T 7714 | Wang, S. J.,Yan, Y. H.,Zhao, R. Z.,et al. Broadband radio bursts and fine structures during the great solar event on 14 July 2000[J]. Solar Physics,2001,204(40180):155-166. |
| APA | Wang, S. J..,Yan, Y. H..,Zhao, R. Z..,Fu, Q. J..,Tan, C. M..,...&Lin, H..(2001).Broadband radio bursts and fine structures during the great solar event on 14 July 2000.Solar Physics,204(40180),155-166. |
| MLA | Wang, S. J.,et al."Broadband radio bursts and fine structures during the great solar event on 14 July 2000".Solar Physics 204.40180(2001):155-166. |
入库方式： OAI收割
来源：国家空间科学中心
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