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Article
Geosciences, Multidisciplinary
C. Paranicas et al.
Summary: The JEDI instrument measured particle flux levels near Ganymede, finding similar ion flux levels but lower energetic electron flux levels on polar and near-wake field lines. These flux levels are relevant to surface weathering and the distribution of ice.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
W. S. Kurth et al.
Summary: The Juno Waves instrument measured plasma waves associated with Ganymede's magnetosphere and identified distinct regions including a wake, nightside, and dayside. These waves likely interact with energetic electrons in Ganymede's magnetosphere and radio emissions observed are likely from Ganymede's magnetosphere.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Tristan Weber et al.
Summary: In this study, we analyzed the internal magnetic dynamo of Ganymede using data from the Juno and Galileo spacecraft. Ganymede, the only known moon with a strong internal magnetic field, is of unique interest in understanding planetary magnetospheres. Our findings suggest that a dipole approximation is more accurate than a quadrupole fit. The estimated magnetic moments can be used as a baseline for interpreting future spacecraft data and for numerical modeling of Ganymede's magnetosphere.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
N. Romanelli et al.
Summary: By using the observations and simulations from Juno's flyby of Ganymede, researchers were able to analyze the moon's magnetosphere and uncover signs of magnetic reconnection.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
R. W. Ebert et al.
Summary: Juno made a close flyby of Ganymede and observed accelerated electrons and enhanced energy levels of protons and heavy ions, indicating magnetic reconnection on the magnetic field lines connecting the spacecraft to Ganymede's magnetosphere.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
T. K. Greathouse et al.
Summary: This study maps Ganymede's auroral emissions using Juno-UVS and reveals its unique structural features. The map shows bright oxygen emissions organized into northern and southern auroral ovals. Additionally, the study compares the observations with previous studies and model predictions.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
P. Kollmann et al.
Summary: Based on recent flyby data from the Juno spacecraft and reanalysis of past measurements from the Galileo spacecraft, this study examines the radiation environment around Ganymede, a moon of Jupiter. The study finds that Ganymede is surrounded by a radiation cavity with lower intensities compared to Jupiter. Radiation belts are also present in the core of the cavity, with similar intensity to Jupiter for ions but lower for electrons. The formation of these radiation belts requires processes beyond steady influx and accumulation of particles from Jupiter.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
F. Allegrini et al.
Summary: This study reports on plasma observations made by the Juno/Jovian Auroral Distributions Experiment during the Ganymede flyby on June 7, 2021. The data suggests that Juno traveled through an open field line region instead of a closed field line region while approaching Ganymede. Furthermore, the ion composition near Ganymede differed significantly from the nearby plasma environment, and low-energy electrons were observed to be enhanced at various boundaries of the magnetosphere.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Astronomy & Astrophysics
Joachim Saur
Summary: Moon-magnetosphere interaction refers to the interaction between a moon orbiting within a host planet's magnetosphere with the planet's magnetospheric plasma. This interaction helps in understanding the basic physics of plasma flows in the universe and provides geophysical information about the moons' interiors. The interaction is influenced by various factors both locally near the moon and further away in the magnetospheric plasma.
MAGNETOSPHERES IN THE SOLAR SYSTEM
(2021)
Review
Astronomy & Astrophysics
J. E. P. Connerney et al.
SPACE SCIENCE REVIEWS
(2017)
Review
Astronomy & Astrophysics
B. H. Mauk et al.
SPACE SCIENCE REVIEWS
(2017)
Article
Geosciences, Multidisciplinary
W. Li et al.
GEOPHYSICAL RESEARCH LETTERS
(2013)
Article
Astronomy & Astrophysics
Melissa A. McGrath et al.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
(2013)
Article
Astronomy & Astrophysics
QG Zong et al.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
(2004)
Article
Astronomy & Astrophysics
MG Kivelson et al.
