In situ evidence of the magnetospheric cusp of Jupiter from Juno spacecraft measurements

Y. Xu; C. S. Arridge; Z. H. Yao; B. Zhang; L. C. Ray; S. V. Badman; W. R. Dunn; R. W. Ebert; J. J. Chen; F. Allegrini; W. S. Kurth; T. S. Qin; J. E. P. Connerney; D. J. McComas; S. J. Bolton; Y. Wei

doi:10.1038/s41467-024-50449-z

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In situ evidence of the magnetospheric cusp of Jupiter from Juno spacecraft measurements

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In situ evidence of the magnetospheric cusp of Jupiter from Juno spacecraft measurements

Y. Xu, C. S. Arridge, Z. H. Yao, B. Zhang, L. C. Ray, S. V. Badman, W. R. Dunn, R. W. Ebert, J. J. Chen, F. Allegrini, …

Nature communications, Vol.15(1), 6062

07/18/2024

DOI: 10.1038/s41467-024-50449-z

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Abstract

Abstract The magnetospheric cusp connects the planetary magnetic field to interplanetary space, offering opportunities for charged particles to precipitate to or escape from the planet. Terrestrial cusps are typically found near noon local time, but the characteristics of the Jovian cusp are unknown. Here we show direct evidence of Jovian cusps using datasets from multiple instruments onboard Juno spacecraft. We find that the cusps of Jupiter are in the dusk sector, which is contradicting Earth-based predictions of a near-noon location. Nevertheless, the characteristics of charged particles in the Jovian cusps resemble terrestrial and Saturnian cusps, implying similar cusp microphysics exist across different planets. These results demonstrate that while the basic physical processes may operate similarly to those at Earth, Jupiter’s rapid rotation and its location in the heliosphere can dramatically change the configuration of the cusp. This work provides useful insights into the fundamental consequences of star-planet interactions, highlighting how planetary environments and rotational dynamics influence magnetospheric structures.

Details

Title: Subtitle: In situ evidence of the magnetospheric cusp of Jupiter from Juno spacecraft measurements
Creators: Y. Xu - Institute of Geology and Geophysics
C. S. Arridge - Lancaster University
Z. H. Yao - Chinese Academy of Sciences
B. Zhang - University of Hong Kong
L. C. Ray - Lancaster University
S. V. Badman - Lancaster University
W. R. Dunn - University College London
R. W. Ebert - Southwest Research Institute
J. J. Chen - University of Hong Kong
F. Allegrini - The University of Texas at San Antonio
W. S. Kurth - University of Iowa
T. S. Qin - University of Hong Kong
J. E. P. Connerney - Goddard Space Flight Center
D. J. McComas - Princeton University
S. J. Bolton - Southwest Research Institute
Y. Wei - Institute of Geology and Geophysics
Resource Type: Journal article
Publication Details: Nature communications, Vol.15(1), 6062
Publisher: Nature Portfolio
DOI: 10.1038/s41467-024-50449-z
ISSN: 2041-1723
eISSN: 2041-1723
Grant note: National Natural Science Foundation of China: 42388101 Excellent Young Scientists Fund (HongKong and Macau) of the National Natural Science Foundation of China: 41922060 General Program of the National Natural Science Foundation of China: 42374216 Research Grants Council (RGC) General Research Fund: 17308221, 17308520, 17315222, 17308723 STFC: ST/V000748/1 Ernest Rutherford Fellowship: ST/W003449/1 NASA: 699041X
Z.Y. was supported by the National Natural Science Foundation of China (No. 42388101). B.Z. is supported by the Excellent Young Scientists Fund (HongKong and Macau) of the National Natural Science Foundation of China (Grant No.41922060), the General Program of the National Natural Science Foundation of China (Grant 42374216), and the Research Grants Council (RGC) General Research Fund (Grant Nos.17308221, 17308520, 17315222, and 17308723). S.V.B. was supported by STFC grant ST/V000748/1. W.R.D. is supported by the Ernest Rutherford Fellowship: ST/W003449/1. F.A. and R.W.E. are funded through the Juno mission. The research at the University of lowa is supported by NASA through Contract 699041X with the Southwest Research Institute. W.S.K. acknowledges the use of the Space Physics Data Repository at the University of lowa supported by the Roy J.Carver Charitable Trust.DAS:All Juno data presented here are publicly available from NASA's Planetary Data System (https://pds-ppi.igpp.ucla.edu/). The MAG dataset is available via https://pds-ppi.igpp.ucla.edu/collection/JNO-J-3-FGM-CAL-V1.0, The JADE data is available via https://pds-ppi.igpp.ucla.edu/collection/JNO-J_SW-JAD-3-CALIBRATED-V1.0, and Wave dataset is available via https://pds-ppi.igpp.ucla.edu/collection/JNO-E_J_SS-WAV-3-CDR-SRVFULL-V2.0. The simulation data of Jupiter's global magnetospheric topology presented in this paper are publicly available online via https://doi.org/10.17605/OSF.IO/38WFE. The datasets generated during and/or analysed during the current study are available from the corresponding author upon request.
Language: English
Date published: 07/18/2024
Academic Unit: Physics and Astronomy
Record Identifier: 9984658231702771

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