Results 61 to 70 of about 940 (176)

Oxygen Pickup Acceleration in the Plasma Mantle Associated With Traveling Flux‐Rope Structures

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract It is well known that, in the high‐altitude cusp and mantle regions, ionospheric‐origin outflowing oxygen (O+) ions are often energized through non‐adiabatic processes, among which cyclotron resonance is considered a major mechanism. Here, based on Cluster observations, we present evidence that pickup acceleration also operates as a non ...
H. Koike, M. Yamauchi, S. Taguchi, H. Nilsson, I. Dandouras   +4 more
wiley   +1 more source

Global Circulation of Martian Ionospheric Currents Revealed by Magnetometer Data

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract In the dynamo region of the Martian ionosphere, a large‐scale current is generated by charge separation: ions collide with neutrals while electrons preferentially gyrate around local magnetic field lines. Using MAVEN magnetometer data and a physics‐informed neural network constrained by Ampère's law and Gauss's law for magnetism (the Neural ...
T. Delcourt, A. Mittelholz
wiley   +1 more source

Earthward Transport of Lunar Metallic Ions: Implications of Heavy Ions in the Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Low‐charge‐state heavy ions in Earth's magnetosphere were thought to originate from the ionosphere. However, Observations from the Geotail mission have detected the presence of singly charged metallic ions, such as Fe+ ${\mathrm{F}\mathrm{e}}^{+}$, whose abundances vary depending on the Moon's location, alongside their density ratios to O ...
Mei‐Yun Lin, Andrew R. Poppe
wiley   +1 more source

The Effect of Fast Solar Wind on Ion Distribution Downstream of Earth’s Bow Shock

The Astrophysical Journal Letters
The solar wind gets thermalized and compressed when crossing a planetary bow shock, forming the magnetosheath. The angle between the upstream magnetic field and the shock normal vector separates the quasi-parallel from the quasi-perpendicular ...
Florian Koller, Savvas Raptis, Manuela Temmer, Tomas Karlsson   +3 more
doaj   +1 more source

Uranus's Highly Nonaxisymmetric Magnetopause and Its Impact on Magnetic Reconnection

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Mass and energy fluxes from the solar wind can access a planet's magnetosphere through dayside magnetic reconnection. The plasma and magnetic field conditions on either side of the magnetopause determine whether reconnection is suppressed. However, magnetosheath conditions are sensitive to the shape of the magnetopause, and deviations from ...
Jack H. Crump, Ali H. Sulaiman, Xianzhe Jia, Sophia Zomerdijk‐Russell, Adam Masters   +4 more
wiley   +1 more source

A Magnetospheric Source for Near‐Planet Whistler‐Mode Waves at Venus

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The presence or absence of lightning in the atmosphere of Venus has important implications for atmospheric chemistry, potential chemical signatures of life, identifying volcanic activity, and quantifying potential hazards to future exploration missions.
David M. Malaspina, Keirra D. Kernan, Katherine A. Goodrich, Yingjuan Ma, Shannon M. Curry   +4 more
wiley   +1 more source

Electron‐Driven Instabilities in Jupiter's Magnetodisc

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Thermal electrons in Jupiter's magnetodisc have been observed to be anisotropic with higher parallel temperature compared to perpendicular. In this work, we used previously‐derived electron properties (Sarkango et al., 2025, https://doi.org/10.1029/2025gl118209) to calculate electron β‖ ${\beta }_{\Vert }$ and compared the observed anisotropy ...
Y. Sarkango, A. H. Sulaiman, R. A. López, J. R. Szalay, R. Bandyopadhyay, F. Allegrini, R. W. Ebert, P. A. Damiano   +7 more
wiley   +1 more source

Controls on Solar Wind Entry Identified Through Wind–ACE Heavy‐Ion Diagnostics

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Solar wind (SW) entry into the magnetosphere occurs through several mechanisms, but their dependence on the properties of different ion species is unknown. We compare measurements from Wind‐STICS (magnetosphere) with ACE‐SWICS (L1) to test for any preferential entry between He2+ and SW heavy ions.
S. Colón‐Rodríguez, M. W. Liemohn, J. M. Raines, S. T. Lepri   +3 more
wiley   +1 more source

Spatial distribution of plasma density and magnetic field amplitude in the dayside magnetosheath as a function of the IMF orientation

Frontiers in Astronomy and Space Sciences
The properties of the magnetosheath are of pivotal importance in determining the coupling between the magnetosphere and interplanetary medium. In particular, the magnetic flux pileup and plasma depletion layer (PDL) modify the boundary conditions of ...
B. Michotte de Welle, N. Aunai, B. Lavraud, V. Génot, A. Jeandet, G. Nguyen, A. Ghisalberti, R. Smets   +7 more
doaj   +1 more source

Experimental and numerical investigation of plasma parameters in the magnetosheath

MATEC Web of Conferences, 2018
We investigate the behaviour of the plasma parameters in the magnetosheath in a case when Interball-1 satellite stayed in the magnetosheath, crossing the tail magnetopause.
Dobreva Polya, Kartalev Monio, Nitcheva Olga, Borodkova Natalia, Zastenker Georgy   +4 more
doaj   +1 more source