globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL060186
论文题名:
Dynamic auroral storms on Saturn as observed by the hubble space telescope
作者: Nichols J.D.; V.badman S.; Baines K.H.; Brown R.H.; Bunce E.J.; Clarke J.T.; Cowley S.W.H.; Crary F.J.; Dougherty M.K.; Gérard J.-C.; Grocott A.; Grodent D.; Kurth W.S.; Melin H.; Mitchell D.G.; Pryor W.R.; Stallard T.S.
刊名: Geophysical Research Letters
ISSN: 0094-10037
EISSN: 1944-9768
出版年: 2014
卷: 41, 期:10
起始页码: 3323
结束页码: 3330
语种: 英语
英文关键词: auroras ; magnetosphere ; magnetotail ; saturn
Scopus关键词: Magnetosphere ; Planets ; Space telescopes ; Auroral emission ; auroras ; Currents flowing ; Energetic neutral atoms ; Hubble space telescopes ; Magnetotails ; Ring currents ; saturn ; Storms ; aurora ; magnetosphere ; magnetotail ; Saturn ; spacecraft
英文摘要: We present observations of significant dynamics within two UV auroral storms observed on Saturn using the Hubble Space Telescope in April/May 2013. Specifically, we discuss bursts of auroral emission observed at the poleward boundary of a solar wind-induced auroral storm, propagating at ∼330% rigid corotation from near ∼01h LT toward ∼08h LT. We suggest that these are indicative of ongoing, bursty reconnection of lobe flux in the magnetotail, providing strong evidence that Saturn's auroral storms are caused by large-scale flux closure. We also discuss the later evolution of a similar storm and show that the emission maps to the trailing region of an energetic neutral atom enhancement. We thus identify the auroral form with the upward field-aligned continuity currents flowing into the associated partial ring current.© 2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902295075&doi=10.1002%2f2014GL060186&partnerID=40&md5=df64213433999dccd770607c923f1ada
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7301
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作者单位: Department of Physics and Astronomy, University of Leicester, Leicester, United Kingdom

Recommended Citation:
Nichols J.D.,V.badman S.,Baines K.H.,et al. Dynamic auroral storms on Saturn as observed by the hubble space telescope[J]. Geophysical Research Letters,2014-01-01,41(10).
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