Results 61 to 70 of about 14,057 (229)

Spatial and Energy Dependence of Energetic Electron Precipitation Originating From Jupiter's Inner and Middle Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Energetic electron precipitation transfers trapped magnetospheric energy into Jupiter's atmosphere, yet its contribution beyond the main auroral oval has to be fully quantified. This study statistically investigates the atmospheric energy input from electrons in the 30 keV–1.2 MeV range using in situ measurements from the Juno spacecraft ...
Domenique Freund, George Clark, Lauren W. Blum, Zhi‐Gu Li   +3 more
wiley   +1 more source

Probing Ganymede’s Atmosphere with HST Lyα Images in Transit of Jupiter

The Planetary Science Journal, 2023
We report results from far-ultraviolet observations by the Hubble Space Telescope of Jupiter’s largest moon, Ganymede, transiting across the planet’s dayside hemisphere.
Lorenz Roth, Gregorio Marchesini, Tracy M. Becker, H. Jens Hoeijmakers, Philippa M. Molyneux, Kurt D. Retherford, Joachim Saur, Shane R. Carberry Mogan, Jamey R. Szalay   +8 more
doaj   +1 more source

Motional Induction in Ganymede's Ocean

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract We investigate the magnetic signature of oceanic circulation in Ganymede's subsurface ocean using kinematic induction modeling. Our approach couples zonal jet flows from rotating thermal convection simulations with magnetic field models incorporating Ganymede's internal dynamo and external contributions from Jupiter.
Simon Cabanes, Thomas Gastine, Alexandre Fournier   +2 more
wiley   +1 more source

An updated re-entry analysis of the Hubble Space Telescope [PDF]

, 2019
First International Orbital Debris Conference, held 9-12 December, 2019 in Sugar Land, Texas.The article of record as published may be found at https://doi.org/10.1016/j.jsse.2020.07.006The Hubble Space Telescope (HST), launched in 1990, has without ...
Jonathan Lang, Zachary Lewis, Culton, Eryn, Perez-Aleman, Robert, Eryn Culton, Baker, Kyle, Lang, Jonathan, Lewis, Zachary, Romano, Marcello, Marcello Romano, Smeresky, Brendon, Anthony Starks, Rizzo, Alexa, Jennifer Rhatigan, Rhatigan, Jennifer, Starks, Anthony, Joshua Teneyck, Brendon Smeresky, Kyle Baker, Teneyck, Joshua, Robert Perez-Alemany, Alexa Rizzo, Perez-Alemany, Robert   +22 more
core   +1 more source

Evidence for a Nonzero Eccentricity Superpuff Exoplanet WASP-107 b Using JWST Occultation Observation

The Astrophysical Journal Letters
WASP-107 b is an extremely low-density superpuff exoplanet whose inflated radius and evidence of strong internal heating make it a key target for understanding planetary structure and evolution.
Yunke Wu, Zixin Zhang, Xinyue Ma, Zhangliang Chen, Wenqin Wang, Shangfei Liu, Cong Yu, Dichang Chen, Bo Ma   +8 more
doaj   +1 more source

Auroral Emissions on Ganymede: New Constraints on Their Electron Energy Dependence

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Auroral emissions on Ganymede provide critical insights into its magnetospheric dynamics and atmospheric composition. Using a physics‐based atmospheric model with recent atmospheric observations and laboratory measurements of electron‐impact cross‐sections, this study revisits and significantly refines the relationship between auroral emission
Xin Cao, Mika K. G. Holmberg, Caitriona M. Jackman, Hans L. F. Huybrighs, Sebastian Cervantes, Audrey Vorburger   +5 more
wiley   +1 more source

Using dimers to measure biosignatures and atmospheric pressure for terrestrial exoplanets

, 2014
We present a new method to probe atmospheric pressure on Earth-like planets using (O-O) dimers in the near-infrared. We also show that dimer features could be the most readily detectable biosignatures for Earth-like atmospheres and may even be detectable
Misra, A., Meadows, V., Claire, M., Crisp, D.   +3 more
core   +1 more source

Steady Collapse of Uranus' Exosphere After 1998 to the Present Decade

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Uranus' thermospheric temperature decreased from ∼800K in 1986 to ∼450K in 2022 as determined from observations of H3+ and H2 infrared emissions. Spitzer 2007 lower atmosphere observations do not emulate this cooling trend. Here we show that the atomic H Lyman ⍺ emission from the disk of Uranus observed by HST from 2011 to 2022 are not ...
D. Bhattacharyya, J. T. Clarke, P. Stephenson, T. Koskinen, J.‐Y. Chaufray, L. Moore, H. Melin   +6 more
wiley   +1 more source

Modeling the EMIC Wave‐Induced Acceleration of Energetic Protons in the Io Footprint Tail

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The Io footprint tail (FPT) region is crucial for studying the interactions between Io and Jupiter's magnetosphere. In this region, Juno spacecraft observed significant acceleration of energetic protons, concurrently with electromagnetic ion cyclotron (EMIC) waves below the proton gyro‐frequency.
Peng Lu, Xing Cao, Xudong Gu, Binbin Ni, Wei Xu, Shaobei Wang, Minyi Long   +6 more
wiley   +1 more source

V659 Cen: System Members Updated

The Astronomical Journal
V659 Cen is a classical Cepheid which is part of a multiple system. Previous observations have shown that a hot companion dominates an ultraviolet spectrum and a cooler main-sequence star dominates an XMM-Newton spectrum. The Hubble Space Telescope Space
Nancy Remage Evans, Charles Proffitt, Pierre Kervella, Joanna Kuraszkiewicz, H. Moritz Günther, Richard I. Anderson, Alexandre Gallenne, Antoine Mérand, Boris Trahin, Giordano Viviani, Shreeya Shetye   +10 more
doaj   +1 more source