SUNWARD-PROPAGATING ALFVÉNIC FLUCTUATIONS OBSERVED IN THE HELIOSPHERE
文献类型：期刊论文
| 作者 | Hui Li; Chi Wang; John W. Belcher; Jiansen He; John D. Richardson |
| 刊名 | The Astrophysical Journal Letters
 |
| 出版日期 | 2016 |
| 卷号 | 824期号:1 |
| ISSN号 | 2041-8205 |
| 英文摘要 | The mixture/interaction of anti-sunward-propagating Alfvénic fluctuations (AFs) and sunward-propagating Alfvénic fluctuations (SAFs) is believed to result in the decrease of the Alfvénicity of solar wind fluctuations with increasing heliocentric distance. However, SAFs are rarely observed at 1 au and solar wind AFs are found to be generally outward. Using the measurements from Voyager 2 and Wind, we perform a statistical survey of SAFs in the heliosphere inside 6 au. We first report two SAF events observed by Voyager 2. One is in the anti-sunward magnetic sector with a strong positive correlation between the fluctuations of magnetic field and solar wind velocity. The other one is in the sunward magnetic sector with a strong negative magnetic field—velocity correlation. Statistically, the percentage of SAFs increases gradually with heliocentric distance, from about 2.7% at 1.0 au to about 8.7% at 5.5 au. These results provide new clues for understanding the generation mechanism of SAFs. |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/5448]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Hui Li,Chi Wang,John W. Belcher,et al. SUNWARD-PROPAGATING ALFVÉNIC FLUCTUATIONS OBSERVED IN THE HELIOSPHERE[J]. The Astrophysical Journal Letters,2016,824(1). |
| APA | Hui Li,Chi Wang,John W. Belcher,Jiansen He,&John D. Richardson.(2016).SUNWARD-PROPAGATING ALFVÉNIC FLUCTUATIONS OBSERVED IN THE HELIOSPHERE.The Astrophysical Journal Letters,824(1). |
| MLA | Hui Li,et al."SUNWARD-PROPAGATING ALFVÉNIC FLUCTUATIONS OBSERVED IN THE HELIOSPHERE".The Astrophysical Journal Letters 824.1(2016). |
入库方式： OAI收割
来源：国家空间科学中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。