Stimulation of Pc 1 Micropulsations by Controlled VLF Transmissions.
Abstract
Experiments designed to artificially generate ultra-low-frequency (ULF) waves were undertaken in conjunction with controlled very-low-frequency (VLF), wave transmissions conducted at Fort Richardson, Alaska (L approximately 4). Pc 1 micropulsations are believed to be produced by a Doppler-shifted, resonant interaction between Alfven waves and moderately-energetic, ring-current protons (Jacobs, 1970). This interaction is analogous to the interaction between VLF whistler-mode waves and energetic electrons. The interaction occurs between waves and particles traveling in 'opposite' directions along a magnetic field line. An anomalous interaction can also occur between VLF whistler-mode waves overtaking protons traveling in the same direction along the magnetic field line.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 07, 1977
- Accession Number
- ADA039264
Entities
People
- Harry C. Koons
Organizations
- The Aerospace Corporation