Whistler waves in Freja observations
文献类型：期刊论文
| 作者 | Huang, GL; Wang, DY; Song, QW
|
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2004-02-17 |
| 卷号 | 109期号:A2页码:A02307 |
| 关键词 | auroral region plasma waves whistler |
| ISSN号 | 0148-0227 |
| 英文摘要 | Several examples of whistler wave packets accompanied by density cavities are detected in F4 experiments of Freja satellite. The density depletion seems to be a fixed structure in space from the cross-correlation of two Langmuir probes. The wavelet analysis shows the frequency drift from 1 kHz ( below the low-hybrid frequency) to 200 Hz ( below the proton cyclotron frequency). The wave packets are always associated with an extremely low frequency component at 20-30 Hz ( around the oxygen ion cyclotron frequency). The method of the minimum variance is used to calculate the oblique propagation of the wave packets with an angle decreased from 31 to 17 degrees between the wave vector and the ambient magnetic field. The right polarization of the wave packets is shown in the direction of the ambient magnetic field. Moreover, the phase velocity of the wave packets is inversely proportional to the frequency. These features may support the formation of envelope solitary whistler waves. |
| 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] | KINETIC ALFVEN WAVES ; DENSITY DEPLETIONS ; ENVELOPE SOLITON ; PLASMA ; PARAMETERS ; SATELLITE ; CAVITIES ; SPACE ; HISS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000189374800001 |
| 公开日期 | 2012-12-22 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/7735]  |
| 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 | Chinese Acad Sci, Purple Mt Observ, Nanjing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, GL,Wang, DY,Song, QW. Whistler waves in Freja observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2004,109(A2):A02307. |
| APA | Huang, GL,Wang, DY,&Song, QW.(2004).Whistler waves in Freja observations.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,109(A2),A02307. |
| MLA | Huang, GL,et al."Whistler waves in Freja observations".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 109.A2(2004):A02307. |
入库方式： OAI收割
来源：紫金山天文台
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