Results 141 to 150 of about 1,741 (216)

The Spatial Localization of Storm‐Time ULF Waves Due To Plasmaspheric Plumes

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract The generation and propagation of Ultra Low Frequency (ULF) waves are intrinsically coupled to the cold plasma population in the terrestrial magnetosphere. During geomagnetic storms, extreme reconfigurations of the cold plasma create a complex and dynamic system that drastically modifies this coupling.
J. K. Sandhu   +7 more
wiley   +1 more source

Suprathermal Electron Acceleration Comparison of the Venusian and Terrestrial Bow Shocks

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract We study suprathermal electron acceleration at the Venusian bow shock using the Parker Solar Probe gravity assists and the Venus Express spacecraft mission. The acceleration is classified by measuring the maximum energy and the power‐law spectral slope (index) of the electron phase space density immediately downstream of the shocks for ...
M. Lindberg   +4 more
wiley   +1 more source

Van Allen Probes Observations of a Fundamental Poloidal Wave in the Plasmasphere

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract All past spacecraft observations of fundamental poloidal Alfvén (P1) waves attributed to ion drift resonance have been made outside the plasmasphere. In this study, we present the first spacecraft observations of a plasmaspheric P1 wave driven by that resonance.
Kazue Takahashi   +4 more
wiley   +1 more source

Is Magnetic Reconnection Dominantly Spatially or Temporally Variable: First Results From TRACERS

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract The Tandem Reconnection And Cusp Electrodynamics Reconnaissance Satellites (TRACERS) small explorer mission was designed to: Determine whether magnetopause reconnection is primarily spatially or temporally variable for a range of solar wind conditions. Observations from the Analyzers for Cusp Ions (ACIs) on the two TRACERS spacecrafts are used
S. A. Fuselier   +22 more
wiley   +1 more source

Reconnection Onset in Overstretched Thin Current Sheets: 3‐D Kinetic Picture

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract Evolution of the magnetotail equilibrium, whose current density iso‐contours are stretched beyond the magnetic field lines due to small ion anisotropy and agyrotropic effects on the scales of the thermal ion gyroradius (the so‐called overstretched thin current sheet) is considered using 3‐D explicit particle‐in‐cell simulations.
M. I. Sitnov, H. Arnold
wiley   +1 more source

Simulating Inner Radiation Belt Electron Transport and Low‐Latitude Precipitation Driven by Disturbance Electric Fields

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract Increasing attention has been given to large‐scale disturbance electric fields in the inner radiation belt as a driver of drift‐periodic zebra stripe formations. Such disturbance electric fields have also been discussed as a possible driving mechanism of electron precipitation, transporting electrons below the inner belt and into the ...
S. D. Walton, S. Lejosne
wiley   +1 more source

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