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Ganymede Observations by JunoCam on Juno Perijove 34 [PDF]
Geophysical Research Letters, 2022 During the Juno Mission's encounter with Ganymede on 7 June 2021, the Juno camera (JunoCam) acquired four images of Ganymede in color. These images covered one‐sixth of Ganymede at scales from 840 m to ∼4 km/pixel.
Michael A Ravine +2 more
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Juno's Close Encounter With Ganymede—An Overview [PDF]
Geophysical Research Letters, 2022 The Juno spacecraft has been in orbit around Jupiter since 2016. Two flybys of Ganymede were executed in 2021, opportunities realized by evolution of Juno's polar orbit over the intervening 5 years.
C J Hansen, A H Sulaiman, S DuLing
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Ion Dynamics at the Magnetopause of Ganymede [PDF]
Journal of Geophysical Research: Space Physics, 2022 AbstractWe study the dynamics of the thermal O+ and H+ ions at Ganymede's magnetopause when Ganymede is inside and outside of the Jovian plasma sheet using a three‐dimensional hybrid model of plasma (kinetic ions, fluid electrons). We present the global structure of the electric fields and power density (E ⋅ J) in the magnetosphere of Ganymede and show
S Fatemi, A R Poppe, A Vorburger
exaly +6 more sources
Geophysical Research Letters, 2022 We report on plasma observations from Juno/Jovian Auroral Distributions Experiment during the Ganymede flyby on 7 June 2021. Juno approached Ganymede from southern latitudes, passed through the wake region, then through its magnetosphere to closest ...
F Allegrini, F Bagenal, R W Ebert
exaly +2 more sources
Geophysical Research Letters, 2016 Ganymede possesses strong surface brightness asymmetries both between its polar cap and equatorial regions and between its leading and trailing hemispheres.
S Fatemi, A R Poppe, K K Khurana
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Updated Spherical Harmonic Magnetic Field Moments of Ganymede From the Juno Flyby
Geophysical Research Letters, 2022 In this study, we use data from the Juno and Galileo spacecraft to analyze the internal magnetic dynamo of Ganymede. As the only known moon with a strong internal magnetic field, Ganymede is a uniquely interesting object in the context of understanding ...
Tristan Weber +2 more
exaly +2 more sources
Giant impact on early Ganymede and its subsequent reorientation [PDF]
Scientific ReportsGanymede has an ancient impact structure called a furrow system. The furrow system is the largest impact structure in the outer solar system, and the impact should have significantly affected Ganymede’s early history; however, its effects are poorly ...
Naoyuki Hirata
doaj +2 more sources
Towards More Accessible and More Inclusive PrEP to Break the Cycle of HIV in France. [PDF]
J Int AIDS SocABSTRACT Introduction Pre‐exposure prophylaxis (PrEP) represents a major advance in HIV prevention, but its rollout in France remains limited, particularly among women, migrants and socially vulnerable populations. Despite full reimbursement by the national health system, oral PrEP is still rarely prescribed outside hospital settings, hindered by ...
Ghosn J, Chaix ML.
europepmc +2 more sources
Journal of Geophysical Research: Space Physics, 2013 We present four sets of ultraviolet images of Ganymede acquired with the Hubble Space Telescope (HST) from 1998 to 2007, all of which show auroral emission from electron excited atomic oxygen. The three different hemispheres of Ganymede captured in the observations show strikingly different emission morphologies.
Melissa A McGrath +2 more
exaly +3 more sources
Reconnection Preferentially Accelerates Light Ions at Ganymede's Magnetopause
Geophysical Research LettersJuno's flyby of Ganymede revealed ion composition in its vicinity with the Jovian Auroral Distributions Experiment–Ion (JADE‐I) instrument. Throughout this flyby, we derive species‐resolved ion density and velocity moments by decomposing the time‐of ...
T. W. Oberg +7 more
doaj +2 more sources