Results 21 to 30 of about 66 (64)

M‐Shell and Local Time Variability of the Electron and Magnetic Environments at the Orbit of Callisto as Observed by the Juno and Galileo Missions

Journal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.
Abstract Jupiter's moon Callisto orbits in a highly variable magnetospheric environment depending on its position relative to the Jovian current sheet. The Juno and Galileo missions have visited the Jovian magnetosphere and crossed Callisto's orbit several times in a variety of configurations, providing an opportunity to better characterize Callisto's ...
T. Le Liboux, N. André, R. Modolo, Q. Nénon, A. Seves, J. Rabia, M. Rojo, A. Kamran, Z.‐Y. Liu, F. Leblanc, M. Blanc, P. Louarn, E. Penou, D. Santos‐Costa, F. Allegrini, R. W. Ebert, R. J. Wilson, J. R. Szalay, C. Paranicas, G. Clark, F. Bagenal, O. Mousis, J. E. P. Connerney, S. J. Bolton   +23 more
wiley   +1 more source

Super‐Corotating Flows in Plasma Disk Within 30 Jupiter Radii

Geophysical Research Letters, Volume 52, Issue 3, 16 February 2025.
Abstract Plasma circulation and magnetic reconnection are crucial for understanding the dynamics of Jupiter's magnetosphere. Previous studies identified hundreds of reconnection sites at distances of 50–100 RJ ${\mathrm{R}}_{J}$ from magnetic field signatures.
Jian‐Zhao Wang, Fran Bagenal, Robert J. Wilson, Peter A. Delamere, Xin Cao, Edward Nerney, Robert W. Ebert, Philip W. Valek, Frederic Allegrini, Jamey R. Szalay   +9 more
wiley   +1 more source

Acceleration of Energetic Electrons in Jovian Middle Magnetosphere by Whistler‐Mode Waves

Journal of Geophysical Research: Space Physics, Volume 129, Issue 12, December 2024.
Abstract An abundant multi‐MeV electron population beyond the orbit of Io is required to explain the intense inner radiation belt (electrons >50 ${ >} 50$ MeV) at Jupiter and its synchrotron radiation. In order to better understand the synergistic effect of radial transport and local wave‐particle interactions driven by whistler‐mode waves on the ...
Y.‐X. Hao, Y. Y. Shprits, J. D. Menietti, T. Averkamp, D. D. Wang, P. Kollmann, G. B. Hospodarsky, A. Drozdov, A. Saikin, E. Roussos, N. Krupp, R. B. Horne, E. E. Woodfield, S. J. Bolton   +13 more
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Dawn‐Dusk Asymmetry of Plasma Flow in Jupiter's Middle Magnetosphere Observed by Juno

Geophysical Research Letters, Volume 51, Issue 19, 16 October 2024.
Abstract Based on plasma observations from Juno's Jovian Auroral Distributions Experiment instrument and forward modeling, we investigate the dawn‐dusk asymmetries within Jupiter's magnetosphere between 10 and 40 RJ ${\mathrm{R}}_{J}$. On the dawnside, the flux tubes are depleted characterized by low density and near rigid‐corotation velocity, with a ...
Jian‐Zhao Wang, Fran Bagenal, Robert J. Wilson, Edward Nerney, Robert W. Ebert, Philip W. Valek, Frederic Allegrini, Jamey R. Szalay, Peter A. Delamere   +8 more
wiley   +1 more source

Plasmoids and Magnetic Field Dipolarizations During Juno's First 47 Orbits: Is Ion Acceleration Always Observed in the Dipolarizations?

Journal of Geophysical Research: Space Physics, Volume 129, Issue 10, October 2024.
Abstract Plasmoids and magnetic field dipolarizations are reconnection‐related phenomena often resulting in reconfiguration of the magnetic field and energetic particle acceleration in planetary magnetotail. Building on the work of Blöcker et al. (2023) (10.1029/2023JA031312), we selected seven specific events from their magnetic field dipolarization ...
A. Blöcker, E. A. Kronberg, E. E. Grigorenko, R. W. Ebert, G. Clark   +4 more
wiley   +1 more source

Electron Beams at Europa

Geophysical Research Letters, Volume 51, Issue 13, 16 July 2024.
Abstract Jupiter's moon Europa contains a subsurface ocean whose presence is inferred from magnetic field measurements, the interpretation of which depends on knowledge of Europa's local plasma environment. A recent Juno spacecraft flyby returned new observations of plasma electrons with unprecedented resolution.
F. Allegrini, J. Saur, J. R. Szalay, R. W. Ebert, W. S. Kurth, S. Cervantes, H. T. Smith, F. Bagenal, S. J. Bolton, G. Clark, J. E. P. Connerney, P. Louarn, B. Mauk, D. J. McComas, A. Pontoni, Y. Sarkango, P. Valek, R. J. Wilson   +17 more
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Energetic Charged Particle Measurements During Juno's Two Close Io Flybys

Geophysical Research Letters, Volume 51, Issue 13, 16 July 2024.
Abstract On days 2023‐364 and 2024‐034, the Juno spacecraft made close passages of Jupiter's moon Io, at altitudes of about 1,500 km. Data obtained from the first flyby, when the spacecraft was on magnetic field lines connected to both Jupiter and Io, revealed deep flux decreases.
C. Paranicas, B. H. Mauk, G. Clark, P. Kollmann, Q. Nénon, R. W. Ebert, J. R. Szalay, A. H. Sulaiman, J. E. P. Connerney, S. Bolton   +9 more
wiley   +1 more source

Energetic Oxygen and Sulfur Charge States in the Outer Jovian Magnetosphere: Insights From the Cassini Jupiter Flyby. [PDF]

Geophys Res Lett, 2019
Allen RC, Paranicas CP, Bagenal F, Vines SK, Hamilton DC, Allegrini F, Clark G, Delamere PA, Kim TK, Krimigis SM, Mitchell DG, Smith TH, Wilson RJ.   +12 more
europepmc   +1 more source

The "Puck" energetic charged particle detector: Design, heritage, and advancements. [PDF]

J Geophys Res Space Phys, 2016
Clark G, Cohen I, Westlake JH, Andrews GB, Brandt P, Gold RE, Gkioulidou MA, Hacala R, Haggerty D, Hill ME, Ho GC, Jaskulek SE, Kollmann P, Mauk BH, McNutt RL, Mitchell DG, Nelson KS, Paranicas C, Paschalidis N, Schlemm CE.   +19 more
europepmc   +1 more source