On the Global Features of the 10-60-Min ULF Waves in Jovian Magnetosphere: Juno Observations

Sun, J. W.1; Xie, L.1; Yao, Z. H.2,3,4,5; Fu, S. Y.1; Dunn, W. R.5; Grodent, D.6; Bonfond, B.6; Zhang, B.2; Pan, D. X.7; Xu, Y.3,4; Chen, Y. N.8

2024-04-01

10.1029/2023JE008279

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS   影响因子和分区

2169-9097

2169-9100

["In 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.","In the Jovian system, there are patterns of magnetic waves with periods of 10-60 min. These waves are part of a larger category called ultra-low-frequency waves and play an important role in how energy moves around Jupiter. Here, we study these waves using data collected by the Juno spacecraft from 2016 to 2022, investigating where these waves occur and how often they occur. The waves are different depending on the location and distance from Jupiter, which gives us clues about how they are created. These waves also appear to be more common when Jupiter's magnetic field is compressed by the solar wind. We have also combined data from the Hubble Space Telescope and Juno, and found that the compressed magnetic field leads to more of these waves and stronger auroras on Jupiter. This research helps us to understand how these 10-60-min bursts of energy work in Jupiter's magnetosphere.","We investigate the spatial distribution and periodic characteristics of ultra-low frequency (ULF) waves in the Jovian magnetosphere We examine and compare the occurrence rate of ULF waves under different solar wind compression states The connection between ULF waves and auroral morphology provides key constraints on wave generation mechanisms"]

Jupiter's magnetosphere ULF waves quasi-periodic oscillations auroras solar wind compression interchange structures

SCI

英语

其他

National Natural Science Foundation of China[42074211] ; National Science Foundation of China[ST/W003449/1]

Geochemistry & Geophysics

Geochemistry & Geophysics

WOS:001202900300001

AMER GEOPHYSICAL UNION

SPACE SCIENCE

Web of Science

1.Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China
2.Univ Hong Kong, Dept Earth Sci, Pokfulam, Hong Kong, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
5.UCL, Dept Phys & Astron, London, England
6.Univ Liege, STAR Inst, Lab Phys Atmospher & Planetaire, Liege, Belgium
7.China Univ Geosci Beijing, Sch Geophys & Informat Technol, Beijing, Peoples R China
8.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China

Sun, J. W.,Xie, L.,Yao, Z. H.,et al. On the Global Features of the 10-60-Min ULF Waves in Jovian Magnetosphere: Juno Observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,2024,129(4).

Sun, J. W..,Xie, L..,Yao, Z. H..,Fu, S. Y..,Dunn, W. R..,...&Chen, Y. N..(2024).On the Global Features of the 10-60-Min ULF Waves in Jovian Magnetosphere: Juno Observations.JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,129(4).

Sun, J. W.,et al."On the Global Features of the 10-60-Min ULF Waves in Jovian Magnetosphere: Juno Observations".JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS 129.4(2024).