Observations reveal a connection between auroral particle precipitation and scintillation, indicating that the ionospheric E-region is a key source region for phase scintillation at auroral latitudes.
plasmas
Posted inEditors' Highlights
Satellite Data Reveal Magnetospause K-H Waves Impact Auroras
Analysis of multiple satellite data has revealed a striking connection between K-H waves on the magnetopause, surface waves in the hot zone near the plasmapause, and auroral undulations.
Posted inResearch Spotlights
Spacecraft Reveal New Details of Magnetic Reconnection
Energetic electrons are accelerated directly by magnetic reconnections and can act as tracers of large-scale magnetic field conditions.
Posted inResearch Spotlights
A New Approach to Characterizing Space Plasmas
When plasma particle velocity distributions have multiple, distinct parts, treating each as a separate beam may yield more intuitive results.
Posted inEditors' Vox
New Results Concerning Solar Wind Entry into the Magnetosphere
A new book describes recent results defining the many pathways and foreshock, bow shock, magnetosheath, and magnetopause phenomena connecting the solar wind to the dayside magnetosphere.
Posted inResearch Spotlights
Terrestrial Radio Signals May Suppress High-Energy Electrons
Naval radio signals may cause the formation of a barrier observed during geomagnetic storms that is seemingly impenetrable by relativistic electrons.
Posted inAGU News
Liu Receives 2019 Fred L. Scarf Award
Terry Zixu Liu received the 2019 Fred L. Scarf Award at AGU’s Fall Meeting 2019, held 9–13 December in San Francisco, Calif. The award is given annually to “one honoree in recognition of an outstanding dissertation that contributes directly to solar–planetary science.”
Posted inEditors' Highlights
A Whistle Here, There, and Everywhere on the Giant Planet
NASA’s Juno spacecraft is “hearing whistles” all over the place on Jupiter, a type of natural plasma waves called whistlers that are sometimes associated with atmospheric lightning.
Posted inEditors' Highlights
All Hands on Deck to Catch Ion Cyclotron Waves
An international armada of orbiting satellites and ground VLF network join forces to form a “magnetosphere-ionosphere observatory” to size up electromagnetic ion cyclotron waves in the magnetosphere.
Posted inResearch Spotlights
Explaining the Missing Energy in Mars’s Electrons
Electrons energized and trapped at Mars were thought to lose energy inside the planet’s magnetosheath, but new research suggests a different explanation of spacecraft data.