Fine structure of microwave emission in the 25 August 1999 event and its association with the magnetic field fine structure
文献类型：期刊论文
| 作者 | Ledenev, VG; Sych, RA; Yan, Y; Fu, Q; Wu, H |
| 刊名 | JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
 |
| 出版日期 | 2005-12-01 |
| 卷号 | 67期号:17-18页码:1720-1727 |
| 关键词 | solar flare microwave emission magnetic field |
| ISSN号 | 1364-6826 |
| 英文摘要 | A study is made of the initial stage of the 25 August 1999, event using high time-resolution microwave observations, as well as the data from the Siberian Solar Radio Telescope and Yohkoh/SXT/HXT. Microwave emission revealed fine structures with a typical time scale of about 1 s with a frequency drift similar to 1 GHz/s, and structures with a typical time scale of less than 0.1 s with a frequency drift similar to 10 GHz/s. Emission bands with a slower frequency drift are generated by energetic electrons subjected to the cyclotron resonance condition. This slower frequency drift is a consequence of a change in plasma density caused by the coalescence of magnetic structures with a typical size of the order of -10(8) cm, while the emission with a faster drift is generated by beams of energetic electrons generating Cherenkov resonance emission. The energetic electron beams are produced as a result of the interaction of magnetic structures similar to 10(6)-10(7) cm in size. (c) 2005 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences |
| 研究领域[WOS] | Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences |
| 关键词[WOS] | SOLAR-FLARES ; RECONNECTION ; SPIKES ; CORONA ; BAND ; ACCELERATION ; SPECTROMETER ; BURST ; MODEL |
| 收录类别 | ISTP ; SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000234449000013 |
| 公开日期 | 2012-03-07 |
| 源URL | [http://159.226.72.40/handle/332002/4030]  |
| 专题 | 紫金山天文台_期刊（老文献） |
| 作者单位 | 1.Inst Solar Terr Phys, Irkutsk 664033, Russia 2.Natl Astron Observ, Beijing 100012, Peoples R China 3.Purple Mt Observ, Nanjing 210008, Peoples R China 4.Natl Inst Space Res, Sao Jose Dos Campos, Brazil |
| 推荐引用方式 GB/T 7714 | Ledenev, VG,Sych, RA,Yan, Y,et al. Fine structure of microwave emission in the 25 August 1999 event and its association with the magnetic field fine structure[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2005,67(17-18):1720-1727. |
| APA | Ledenev, VG,Sych, RA,Yan, Y,Fu, Q,&Wu, H.(2005).Fine structure of microwave emission in the 25 August 1999 event and its association with the magnetic field fine structure.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,67(17-18),1720-1727. |
| MLA | Ledenev, VG,et al."Fine structure of microwave emission in the 25 August 1999 event and its association with the magnetic field fine structure".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 67.17-18(2005):1720-1727. |
入库方式： OAI收割
来源：紫金山天文台
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