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| Unusually low density regions in the compressed slow wind: Solar wind transients of small coronal hole origin | |
| Alternative Title | WOS:000519124900001;20203008959425 |
| Liu, Yong C. -M.; Qi, Zhaohui1; Huang, Jia2; Wang, Chi1; Fu, Hui3; Klecker, Berndt4; Wang, Linghua5; Farrugia, Charles J. | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
 |
| 2020 | |
| Volume | 635Pages:A49 |
| DOI | 10.1051/0004-6361/201935884 |
| ISSN | 0004-6361 |
| Language | 英语 |
| Keyword | Sun: heliosphere solar wind magnetic reconnection Sun: oscillations HELIOSPHERIC CURRENT SHEET FLUX ROPES STATISTICAL-ANALYSIS IN-SITU STREAM FIELD PLASMA MULTISPACECRAFT ELECTRONS DYNAMICS |
| Abstract | We report on two small solar wind transients embedded in the corotating interaction region, characterized by surprisingly lower proton density compared with their surrounding regions. In addition to lower density, these two small solar wind transients showed other interesting features like higher proton temperature, higher alpha-proton ratios, and lower charge states (C+6/C+5 and O+7/O+6). A synthesized picture for event One combining the observations by STEREO B, ACE, and Wind showed that this small solar transient has an independent magnetic field. Back-mapping links the origin of the small solar transient to a small coronal hole on the surface of the Sun. Considering these special features and the back-mapping, we conclude that such small solar wind transients may have originated from a small coronal hole at low latitudes. |
| Indexed By | SCI ; EI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/7733 |
| Collection | 中国科学院国家空间科学中心 |
| Affiliation | 1.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China 3.Univ Michigan, Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA 4.Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Shandong, Peoples R China 5.Max Planck Inst Extraterr Phys, Garching, Germany 6.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 7.Farrugia, Charles J.] Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA |
| Recommended Citation GB/T 7714 | Liu, Yong C. -M.,Qi, Zhaohui,Huang, Jia,et al. Unusually low density regions in the compressed slow wind: Solar wind transients of small coronal hole origin[J]. ASTRONOMY & ASTROPHYSICS,2020,635:A49. |
| APA | Liu, Yong C. -M..,Qi, Zhaohui.,Huang, Jia.,Wang, Chi.,Fu, Hui.,...&Farrugia, Charles J..(2020).Unusually low density regions in the compressed slow wind: Solar wind transients of small coronal hole origin.ASTRONOMY & ASTROPHYSICS,635,A49. |
| MLA | Liu, Yong C. -M.,et al."Unusually low density regions in the compressed slow wind: Solar wind transients of small coronal hole origin".ASTRONOMY & ASTROPHYSICS 635(2020):A49. |
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