The Earth as a Radio Source: The Non-Thermal Continuum.
Abstract
In addition to the intense and highly variable auroral kilometric radiation the earth also radiates a weak non-thermal continuum from energetic electrons in the outer radiation zone. The intensity of this continuum radiation decreases with increasing frequency and is usually below the cosmic noise level at frequencies above 100 kHz. In this paper it is shown that the frequency spectrum of the continuum radiation consists of two components, a trapped component, which is permanently trapped within the magnetosphere at frequencies below the solar wind plasma frequency, and an escaping component which propagates freely away from the earth at frequencies above the solar wind plasma frequency.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1974
- Accession Number
- ADA004962
Entities
People
- Donald A. Gurnett
Organizations
- University of Iowa