Results 131 to 140 of about 5,188 (295)

Comparison of F‐Region Ion Velocities Measured by Swarm Satellites and EISCAT Radars

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Ionospheric ion flow velocities measured by the Swarm satellites are compared with the ion velocities estimated from the European Incoherent Scatter (EISCAT) radar measurements in Tromsø and on Svalbard. A comparison is carried out between the cross‐track horizontal ion velocity component given by the Swarm Electric Field Instrument and the ...
M. L. Mekuriaw, A. T. Aikio, L. Cai, H. Vanhamäki, I. I. Virtanen, S. Buchert, N. Ivchenko, W. Miloch, Y. Jin, D. Knudsen, J. K. Burchill   +10 more
wiley   +1 more source

Wave Responses to Magnetosheath Boundary Motion at Saturn: Mirror Modes and Electromagnetic Ion Cyclotron Waves

The Astrophysical Journal
Saturn’s magnetosheath provides a natural laboratory for studying the generation and evolution of low-frequency plasma waves that play a key role in regulating temperature anisotropy and mediating wave–particle interactions.
Xinya Duanmu, Shengyi Ye, Zhonghua Yao
doaj   +1 more source

Direct evidence of substorm-related impulsive injections of electrons at Mercury. [PDF]

Nat Commun, 2023
Aizawa S, Harada Y, André N, Saito Y, Barabash S, Delcourt D, Sauvaud JA, Barthe A, Fedorov A, Penou E, Yokota S, Miyake W, Persson M, Nénon Q, Rojo M, Futaana Y, Asamura K, Shimoyama M, Hadid LZ, Fontaine D, Katra B, Fraenz M, Krupp N, Matsuda S, Murakami G.   +24 more
europepmc   +1 more source

Evidence for a Natural Limit to Electron Space Radiation: An Application of Benford's Law

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Recent research has highlighted observational evidence for a natural limit to the severity of energetic electron differential fluxes in the Van Allen radiation belts. Here, we analyze the occurrence distributions of electron differential fluxes from the entire Van Allen Probes mission (2012–2019) to further investigate the energy dependence of
L. Olifer, I. R. Mann
wiley   +1 more source

Low Plasma Density Estimation Based on Measurements of Electron Cyclotron Harmonic Waves

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract The electron plasma frequency to cyclotron frequency ratio is a crucial parameter for accurately evaluating local chorus wave‐driven electron acceleration and loss in the inner magnetosphere. In the present work, we propose a method for inferring the plasma frequency from near‐equatorial measurements of electron cyclotron harmonic (ECH) waves ...
Didier Mourenas, Ruoxian Zhou, Xiao‐Jia Zhang, Anton V. Artemyev   +3 more
wiley   +1 more source

Temperatures of Jupiter’s Upper Atmosphere: The Role of the Planetary Magnetic Field

The Astrophysical Journal Letters
The primary source of heating in the upper atmospheres (thermospheres) of giant planets has been the subject of long debate. The conundrum (or “energy crisis”) consists in observed thermosphere temperatures at low and midlatitudes exceeding values ...
Ingo C. F. Müller-Wodarg, Peio Iñurrigarro, Luke Moore, Tommi T. Koskinen, Alexander S. Medvedev   +4 more
doaj   +1 more source

The Evolution of Powell Basin (Antarctica)

Remote Sensing
Powell Basin is an ocean basin formed as a result of the Scotia Sea evolution. The existing tectonic models propose a variety of starting and ending ages for the spreading of the basin based on seafloor magnetic anomalies.
Alberto Santamaría Barragán, Manuel Catalán, Yasmina M. Martos   +2 more
doaj   +1 more source

What Controls the Structure and Dynamics of Earth's Magnetosphere? [PDF]

, 2015
Eastwood, JP, Fujimoto, M, Hietala, H, Phan, TD, Toth, G   +4 more
core   +1 more source

Emission of Energetic Neutral Atoms From Ganymede's Magnetosphere‐Atmosphere Interaction

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract This study analyzes the emission of energetic neutral atoms (ENAs), generated by charge exchange between energetic protons and Ganymede's atmosphere. We also constrain the observability of such ENAs by an imaging instrument aboard a spacecraft.
C. Michael Haynes, Sven Simon, Lucas Liuzzo   +2 more
wiley   +1 more source

Solar Wind Control of the Martian Magnetotail Current Sheet and Magnetic Reconnection

The Astrophysical Journal
Magnetic reconnection is a rapid process that releases magnetic free energy stored in current sheets (CSs), driving various explosive phenomena throughout the Universe. In planets within the solar system, reconnection is controlled by both the solar wind
Lei Wang, Can Huang, Aimin Du, Yasong Ge, Junyu Zhao, Dongke Chen   +5 more
doaj   +1 more source