Publications by authors named "Chae-Woo Jun"
Recent work has shown that ElectroMagnetic Ion Cyclotron (EMIC) waves tend to occur in four distinct regions, each having their own characteristics and morphology. Here, we use nonlinear test-particle simulations to examine the range of energetic electron scattering responses to two EMIC wave groups that occur at low L-shells and overlap the outer radiation belt electrons. The first group consists of low-density, H-band region b waves, and the second group consists of high-density, He-band region c waves.
View Article and Find Full Text PDFArticle Synopsis
- Bright, discrete auroral arcs in polar regions are created by magnetospheric electrons accelerated through electric fields, producing light when they collide with thermosphere atoms at around 100 km altitude.
- Recent findings indicate that these electrons can actually be accelerated from altitudes over 30,000 km, which is significantly higher than previously believed.
- The research combines data from the Arase satellite and ground-based imaging, revealing that the mechanisms behind this acceleration are still not fully understood, but they suggest a more complex interaction within the magnetosphere.