DOI: 10.1002/grl.50889
论文题名: Auroral signatures of multiple magnetopause reconnection at Saturn
作者: Radioti A. ; Grodent D. ; Gérard J.-C. ; Bonfond B. ; Gustin J. ; Pryor W. ; Jasinski J.M. ; Arridge C.S.
刊名: Geophysical Research Letters
ISSN: 0094-8608
EISSN: 1944-8339
出版年: 2013
卷: 40, 期: 17 起始页码: 4498
结束页码: 4502
语种: 英语
英文关键词: auroral emissions at Saturn
; magnetopause reconnection at Saturn
Scopus关键词: Auroral emission
; Cassini
; Flux tubes
; Keypoints
; Magnetic flux tube
; North-south asymmetry
; Earth sciences
; Geophysics
; Magnetopause
; aurora
; emission
; magnetopause
; Saturn
英文摘要: Auroral observations capture the ionospheric response to dynamics of the whole magnetosphere and may provide evidence of the significance of reconnection at Saturn. Bifurcations of the main dayside auroral emission have been related to reconnection at the magnetopause and their surface is suggested to represent the amount of newly opened flux. This work is the first presentation of multiple brightenings of these auroral features based on Cassini ultraviolet auroral observations. In analogy to the terrestrial case, we propose a process, in which a magnetic flux tube reconnects with other flux tubes at multiple sites. This scenario predicts the observed multiple brightenings, it is consistent with subcorotating auroral features which separate from the main emission, and it suggests north-south auroral asymmetries. We demonstrate that the conditions for multiple magnetopause reconnection can be satisfied at Saturn, like at Earth. Key Points Multiple magnetopause reconnection like at Earth is possible at Saturn North-south asymmetries at Saturn's dayside aurora are predicted Magnetopause reconnection at Saturn is of certain significance ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883516825&doi=10.1002%2fgrl.50889&partnerID=40&md5=54311b56f6df2409349ffdf87ae5abd3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5872
Appears in Collections: 气候减缓与适应
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作者单位: Laboratoire de Physique Atmosphérique et Planétaire, Institut d'Astrophysique et de Géophysique, Université de Liège, LPAP, Allee du 6 Aout 17, Liege 4000, Belgium
Recommended Citation:
Radioti A.,Grodent D.,Gérard J.-C.,et al. Auroral signatures of multiple magnetopause reconnection at Saturn[J]. Geophysical Research Letters,2013-01-01,40(17).