Tens to Hundreds of keV Electron Precipitation Driven by Kinetic Alfvén Waves During an Electron Injection
Abstract
Electron injections are critical processes associated with magnetospheric substorms, which deposit significant electron energy into the ionosphere. Although wave scattering of B drifts allow Doppler‐shifted Landau resonances between the injected electrons and KAWs, producing electron spatial scattering across the front which results in pitch‐angle decreases and subsequent precipitation. Test particle results show that such KAW‐driven precipitation can account for ELFIN observations below ∼300 keV.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 01, 2022
- Source ID
- 10.1029/2022ja030360
Entities
People
- Anton V. Artemyev
- Barbara L. Giles
- Christopher T. Russell
- Colin Wilkins
- Drew L Turner
- Ethan Tsai
- I. Y. Vasko
- J. M. Weygand
- Robert Ergun
- Vassilis Angelopoulos
- Xiao‐jia Zhang
- Yangyang Shen
Organizations
- Air Force Office of Scientific Research
- Johns Hopkins University
- Massachusetts Medical Society
- National Aeronautics and Space Administration
- National Science Foundation