The energetic spectrum of non-thermal electrons in an acceleration region calculated from a solar microwave type III burst with both positive and negative frequency drifts
文献类型：期刊论文
| 作者 | Huang, GL; Qin, ZH; Yan, G; Fu, QJ; Liu, YY |
| 刊名 | ASTROPHYSICS AND SPACE SCIENCE
 |
| 出版日期 | 1998 |
| 卷号 | 259期号:3页码:317-326 |
| 关键词 | PULSATIONS RADIO |
| ISSN号 | 0004-640X |
| 英文摘要 | A typical event of solar microwave type III burst with both positive and negative frequency drifts was observed by the 1-2 GHz spectrograph at Beijing Observatory on January 5, 1994. The separatrix frequency (1.3 GHz) may correspond to an acceleration region. The energy of the electron beam responsible for the burst is calculated from the drift rate and the height of the source above the photosphere. Moreover, if the solar microwave type III burst is explained by the beam-plasma instability as suggested by Huang (1998), the energy density as well as the particle density of the electron beam may be estimated from the burst flux, the growth rates and the modularity (Huang et al., 1996). So that, a very good power-law distribution is simulated for the energetic spectrum of the electron beam in this event with a spectrum index 4.5. The electron beam may be accelerated by an electric field with a length of 10(7) m and a strength of 10(-4) V m(-1). These results are necessary for understanding the acceleration process in solar flares. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | PULSATIONS ; RADIO |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000078776700009 |
| 公开日期 | 2013-02-05 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8350]  |
| 专题 | 紫金山天文台_太阳活动的多波段观测研究团组 |
| 作者单位 | 1.Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Nanjing Univ, Dept Astron, Nanjing, Peoples R China 3.Beijing Astron Observ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, GL,Qin, ZH,Yan, G,et al. The energetic spectrum of non-thermal electrons in an acceleration region calculated from a solar microwave type III burst with both positive and negative frequency drifts[J]. ASTROPHYSICS AND SPACE SCIENCE,1998,259(3):317-326. |
| APA | Huang, GL,Qin, ZH,Yan, G,Fu, QJ,&Liu, YY.(1998).The energetic spectrum of non-thermal electrons in an acceleration region calculated from a solar microwave type III burst with both positive and negative frequency drifts.ASTROPHYSICS AND SPACE SCIENCE,259(3),317-326. |
| MLA | Huang, GL,et al."The energetic spectrum of non-thermal electrons in an acceleration region calculated from a solar microwave type III burst with both positive and negative frequency drifts".ASTROPHYSICS AND SPACE SCIENCE 259.3(1998):317-326. |
入库方式： OAI收割
来源：紫金山天文台
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