Article (Scientific journals)
On the Global Features of the 10–60‐Min ULF Waves in Jovian Magnetosphere: Juno Observations
Sun, J. W.; Xie, L.; Yao, Zhonghua et al.
2024In Journal of Geophysical Research. Planets, 129 (4)
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Keywords :
Space and Planetary Science; Earth and Planetary Sciences (miscellaneous); Geochemistry and Petrology; Geophysics
Abstract :
[en] AbstractIn the Jovian magnetosphere, quasi‐periodic phenomena, with quasi‐periods on the order of 10–60 min, are frequently identified using different data sets. These pulsations are a branch of ultra‐low frequency (ULF) waves, which are believed to play a crucial role in driving the energy circulation within Jupiter's magnetosphere. In this study, we utilize magnetic field data collected by Juno between 2016 and 2022 to perform a comprehensive global statistical analysis of the spatial distribution and periodic characteristics of ULF waves in the Jovian magnetosphere. Our findings reveal distinct periodic features observed at different latitudes and distances, providing valuable insights into the generation mechanisms of ULF waves. Furthermore, we establish a close relationship between the presence of these ULF wave fluctuations and the magnetospheric state, such as under conditions of solar wind compression. By combining contemporaneous ultraviolet aurora observations from the Hubble Space Telescope (HST) and magnetic field data obtained by Juno, we have discovered that the compressed magnetospheres exhibit more pronounced ULF waves and enhanced auroral activity. These results provide a global picture of the distribution, implying potential generation of ULF waves in the Jovian magnetosphere, and shedding light on the processes behind the 10–60‐min energy releases.
Research Center/Unit :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Sun, J. W. ;  School of Earth and Space Sciences Peking University Beijing China
Xie, L. ;  School of Earth and Space Sciences Peking University Beijing China
Yao, Zhonghua  ;  Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) ; Department of Earth Sciences University of Hong Kong Pokfulam China ; Key Laboratory of Earth and Planetary Physics Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China ; College of Earth and Planetary Sciences University of Chinese Academy of Sciences Beijing China ; Department of Physics and Astronomy University College London London UK
Fu, S. Y. ;  School of Earth and Space Sciences Peking University Beijing China
Dunn, W. R. ;  Department of Physics and Astronomy University College London London UK
Grodent, Denis  ;  Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Bonfond, Bertrand  ;  Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Zhang, B. ;  Department of Earth Sciences University of Hong Kong Pokfulam China
Pan, D. X. ;  School of Geophysics and Information Technology China University of Geosciences (Beijing) Beijing China
Xu, Y. ;  Key Laboratory of Earth and Planetary Physics Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China ; College of Earth and Planetary Sciences University of Chinese Academy of Sciences Beijing China
Chen, Y. N. ;  Department of Earth and Space Sciences Southern University of Science and Technology Shenzhen China
Language :
English
Title :
On the Global Features of the 10–60‐Min ULF Waves in Jovian Magnetosphere: Juno Observations
Publication date :
April 2024
Journal title :
Journal of Geophysical Research. Planets
ISSN :
2169-9097
eISSN :
2169-9100
Publisher :
American Geophysical Union (AGU)
Volume :
129
Issue :
4
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NSCF - National Natural Science Foundation of China
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Data Set :
PDS

The Juno data presented in this study are available at http://pds-ppi.igpp.ucla.edu/ via the MAG instrument (J. Connerney, 2022).


MAST

The auroral images are based on observations with the NASA/ESA HST (program HST GO-14634) obtained at the Space Telescope Science Institute (STScI), which is operated by AURA for NASA. These data are publicly available at STScI via https://archive.stsci.edu/hst/.

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