Results 61 to 70 of about 5,923,990 (195)

Field-aligned currents are strongly modulated by corotating solar wind high-speed streams

Journal of Space Weather and Space Climate
Birkeland field-aligned currents (FACs) are associated with solar wind-magnetosphere energy coupling leading to substorms/convection events. FAC intensity enhancements have been studied during geomagnetic storms driven by interplanetary coronal mass ...
Hajra Rajkumar, Tsurutani Bruce T., Franco Adriane M. S., Lu Quanming, Du Aimin, Lakhina Gurbax S., Lu San, Gao Xinliang, Echer Ezequiel   +8 more
doaj   +1 more source

The Response of Auroral-Oval Waves to CIR-Driven Recurrent Storms: FY-3E/ACMag Observations

Universe, 2023
Alfven-branch waves provide an efficient means for transporting energy into the auroral oval. Here, we report observations of these waves obtained by the Fengyun-3E (FY-3E)/ACMag instruments, which are designed to detect three-dimensional AC magnetic ...
Zhi-Yang Liu, Wei-Guo Zong, Qiu-Gang Zong, Jin-Song Wang, Xiang-Qian Yu, Yong-Fu Wang, Hong Zou, Sui-Yan Fu, Chao Yue, Ze-Jun Hu, Jian-Jun Liu   +10 more
doaj   +1 more source

Europa's Neutral Sodium Exosphere Is Quasi‐Stable Over Decades

Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.
Abstract Europa's sodium cloud is thought to be modified by its orbital longitude and by its plasma environment, which modulates with Jovian magnetic geometry. To explore and quantify sodium cloud variability, seven sets of Keck I/HIRES measurements are compared providing comprehensive coverage of orbital and magnetic geometry.
Emma L. Lovett, Carl A. Schmidt, Zachariah Milby, Sean P. Ellis, Jamey R. Szalay   +4 more
wiley   +1 more source

Ulysses observations of magnetohydrodynamic turbulence in corotating interaction regions [PDF]

Journal of Geophysical Research: Space Physics, 2001
During its mission around the poles of the Sun, the Ulysses spacecraft encountered a number of well‐developed corotating interaction regions (CIRs) at midlatitudes. In this paper we discuss the character of magnetohydrodynamic (MHD) turbulence within defined regions of these CIRs.
M. Y. Gulamali, P. J. Cargill
openaire   +1 more source

A Mechanism for the Generation of Enhanced Fluxes at Discrete Energies on the Wakes of the Galilean Moons

Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.
Abstract In this study, we propose a new mechanism to explain the observed particle flux at discrete energies in the flux tubes connecting to the wakes of the Galilean moons, first reported by Sarkango et al. (2024, https://doi.org/10.1029/2023gl107431) and referred to as “banded flux.” We demonstrate the proposed mechanism using test particle ...
W. W. Eshetu, R. L. Lysak, Y. Sarkango, A. H. Sulaiman, J. R. Szalay   +4 more
wiley   +1 more source

Plasma Properties at the Orbits of Ganymede and Callisto: Survey of Juno Data

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract The space environment around the Galilean moons is important for understanding the interaction of the magnetospheric plasma with their magnetosphere (in the singular case of Ganymede), their atmospheres and surfaces. Juno's orbital evolution brought the spacecraft close to the orbits of Ganymede and Callisto on multiple occasions over several ...
Reign Pagaran, F. Bagenal, J.‐Z. Wang, R. J. Wilson, R. W. Ebert   +4 more
wiley   +1 more source

Energetic particle acceleration at corotating interaction regions: Ulysses results [PDF]

, 1997
We present here statistical properties of energetic ions (tilde 1 MeV) accelerated by corotating interaction regions observed at the Ulysses spacecraft.
Gosling, J. T., Marsden, R. G., Balogh, A., Desai, M. I., Forsyth, R. J., Sanderson, T. R.   +5 more
core  

Modulation of Galactic Cosmic Rays in Corotating Interaction Regions: Diffusion Dominates over Drifts and Advection

The Astrophysical Journal
Through a coupling of the Space Weather Modeling Framework and the Space Plasma and Energetic Charged particle Transport on Unstructured Meshes, we perform hybrid modeling of Galactic cosmic rays (GCRs), treated as a test-particle population, and their ...
J. G. Alonso Guzmán, W. Liu, V. Florinski, G. Tóth, K. Ghanbari, B. van der Holst   +5 more
doaj   +1 more source

Predicting storm-time thermospheric mass density variations at CHAMP and GRACE altitudes [PDF]

Annales Geophysicae, 2011
Orbit-averaged mass density measurements derived from the satellites CHAMP and GRACE are used to investigate the storm-time prediction model developed by Liu et al. (2010) at different altitudes.
R. Liu, R. Liu, S.-Y. Ma, H. Lühr
doaj   +1 more source

The Effects of ICME Composition on the Sputtered Component of the Lunar Exosphere

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Charged‐particle sputtering is a fundamental process that contributes to the generation of the Moon’s neutral exosphere. Neutral sputtering rates are dependent on the speed, flux, and composition of the incident charged‐particle populations, all of which are variable at the Moon’s orbit.
A. R. Poppe, Q. Nénon, P. S. Szabo, S. R. Carberry Mogan, C. O. Lee   +4 more
wiley   +1 more source