Heliocentric radial variation of plasma oscillations associated with type III radio bursts

Journal Article · Fri Sep 01 04:00:00 EDT 1978 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA083iA09p04147· OSTI ID:6581293

Gurnett, D A; Anderson, R R; Scarf, F L; Kurth, W S

A survey is presented of all of the electron plasma oscillation events found to date in association with low-frequency type III solar radio bursts using approximately 9 years of observations from the Imp 6 and 8, Helios 1 and 2, and Voyager 1 and 2 spacecraft. Plasma oscillation events associated with type III radio bursts show a pronounced increase in both the intensity and the frequency of occurrence with decreasing heliocentric radial distance. This radial dependence explains why intense electron plasma oscillations are seldom observed in association with type III radio bursts at the orbit of the earth. Possible interpretations of the observed radial variation in the plasma oscillation intensity are considered.

• Research Organization: Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242
• OSTI ID: 6581293
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 83:A9; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
640107 -- Astrophysics & Cosmology-- Planetary Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ELECTRON PLASMA WAVES
INTERPLANETARY MAGNETIC FIELDS
INTERPLANETARY SPACE
MAGNETIC FIELDS
PLASMA WAVES
RADIATIONS
RADIOWAVE RADIATION
SATELLITES
SOLAR ACTIVITY
SOLAR FLARES
SOLAR RADIO BURSTS
SPACE