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DOI | 10.1029/2018GL078094 |
Auroral Storm and Polar Arcs at Saturn-Final Cassini/UVIS Auroral Observations | |
Palmaerts, B.1; Radioti, A.1; Grodent, D.1; Yao, Z. H.1; Bradley, T. J.2; Roussos, E.3; Lamy, L.4; Bunce, E. J.2; Cowley, S. W. H.2; Krupp, N.3; Kurth, W. S.5; Gerard, J. -C.1; Pryor, W. R.6 | |
2018-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:14页码:6832-6842 |
文章类型 | Article |
语种 | 英语 |
国家 | Belgium; England; Germany; France; USA |
英文摘要 | On 15 September 2017 the Cassini spacecraft plunged into Saturn's atmosphere after 13 years of successful exploration of the Saturnian system. The day before, the Ultraviolet Imaging Spectrograph (UVIS) on board Cassini observed Saturn's northern aurora for about 14 hr. During these observations, several auroral structures appeared, providing clues about processes simultaneously occurring in Saturn's magnetosphere. The observed dawn auroral enhancement together with the magnetic field and plasma wave data suggest that an intense flux closure process took place in the magnetotail. This enhanced magnetotail reconnection is likely caused by a magnetospheric compression induced by an interplanetary shock. Additionally, a polar arc is observed on the duskside, tracked for the first time from its growth until its quasi-disappearance and used as an indicator of reconnection location on the dayside magnetopause. Observation of an atypical auroral arc at very high latitudes supports the interplanetary shock scenario. |
英文关键词 | Saturn magnetosphere aurora |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442582100010 |
WOS关键词 | PLANETARY PERIOD OSCILLATIONS ; FIELD-ALIGNED CURRENTS ; HUBBLE-SPACE-TELESCOPE ; WIND DYNAMIC PRESSURE ; MAGNETIC-FIELD ; IMAGING SPECTROGRAPH ; ALPHA EMISSION ; PLASMA SHEET ; MAGNETOSPHERE ; RECONNECTION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27632 |
专题 | 气候变化 |
作者单位 | 1.Univ Liege, Space Sci Technol & Astrophys Res Inst, Lab Phys Atmospher & Planetaire, Liege, Belgium; 2.Univ Leicester, Dept Phys & Astron, Leicester, Leics, England; 3.Max Planck Inst Sonnensyst Forsch, Gottingen, Germany; 4.Observ Paris, LESIA, Meudon, France; 5.Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA; 6.Cent Arizona Coll, Sci Dept, Coolidge, AZ USA |
推荐引用方式 GB/T 7714 | Palmaerts, B.,Radioti, A.,Grodent, D.,et al. Auroral Storm and Polar Arcs at Saturn-Final Cassini/UVIS Auroral Observations[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(14):6832-6842. |
APA | Palmaerts, B..,Radioti, A..,Grodent, D..,Yao, Z. H..,Bradley, T. J..,...&Pryor, W. R..(2018).Auroral Storm and Polar Arcs at Saturn-Final Cassini/UVIS Auroral Observations.GEOPHYSICAL RESEARCH LETTERS,45(14),6832-6842. |
MLA | Palmaerts, B.,et al."Auroral Storm and Polar Arcs at Saturn-Final Cassini/UVIS Auroral Observations".GEOPHYSICAL RESEARCH LETTERS 45.14(2018):6832-6842. |
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