Article (Scientific journals)
A Statistical Survey of Low Frequency Magnetic Fluctuations at Saturn
Pan, Dong-Xiao; Yao, Zhong-Hua; Guo, Rui-Long et al.
2021In Journal of Geophysical Research. Space Physics, 126 (2), p. 28387
Peer Reviewed verified by ORBi
 

Files


Full Text
Pan et al. - 2021 - A Statistical Survey of Low-Frequency Magnetic Flu.pdf
Publisher postprint (2.73 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
low frequency waves; magnetosphere; planetary system
Abstract :
[en] Low-frequency waves are closely related to magnetospheric energy dissipation processes. The Cassini spacecraft explored Saturn's magnetosphere for over 13 years, until September 2017, covering a period of more than a complete solar cycle. Using this rich heritage data set, we systematically investigated key physical parameters of low-frequency waves in Saturn's magnetosphere, including their local time distribution and the dependence on solar activity. We found that the wave activity peaked in the near noon sector. For the nightside, the wave intensity also appeared to peak pre and postmidnight. Due to the limited local time coverage for each solar phase, we were not able to draw a firm conclusion on the wave's dependence on solar activity. In general, the wave power showed a monotonically decreasing trend toward larger distances in nightside sectors especially during the declining phase, which implied that low-frequency waves mainly originate from the relatively inner regions of the magnetosphere. On the dayside, stronger waves were mostly located at/within ∼25 Rs, near the magnetopause. The study shows a global picture of low-frequency waves in Saturn's magnetosphere, providing important implications for how magnetospheric energy dissipates into Saturn's polar ionosphere and atmosphere.
Research center :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Pan, Dong-Xiao
Yao, Zhong-Hua
Guo, Rui-Long
Bonfond, Bertrand  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Wei, Yong
Dunn, William
Zhang, Bin-Zheng
Zong, Qiu-Gang
Zhou, Xu-Zhi
Grodent, Denis  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Wan, Wei-Xing
Language :
English
Title :
A Statistical Survey of Low Frequency Magnetic Fluctuations at Saturn
Publication date :
2021
Journal title :
Journal of Geophysical Research. Space Physics
ISSN :
2169-9380
eISSN :
2169-9402
Publisher :
Wiley, Hoboken, United States - New Jersey
Volume :
126
Issue :
2
Pages :
e28387
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Politique Scientifique Fédérale (Belgique) - BELSPO
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 18 August 2021

Statistics


Number of views
37 (3 by ULiège)
Number of downloads
50 (1 by ULiège)

OpenCitations
 
0

Bibliography


Similar publications



Contact ORBi