Journal article
New observations of the low frequency interplanetary radio emissions
Geophysical research letters, Vol.18(10), pp.1801-1804
10/1991
DOI: 10.1029/91GL02309
Abstract
Recent Voyager 1 observations reveal reoccurrences of the low frequency interplanetary radio emissions. Three of the new events are weak transient events which rise in frequency from the range of 2-2.5 kHz to about 3 kHz with drift rates of about 1.5 kHz/year. The first of the transient events begins in mid-1989 and the more recent pair of events was first detected in late 1990. In addition, there is an apparent onset of a 2-kHz component of the emission beginning near day 70 of 1991. The new transient emissions are barely detectable on Voyager 1 and are below the threshold of detectability on Voyager 2. The new activity provides new opportunities to test various theories of the triggering, generation, and propagation of the outer heliospheric radio emissions and may signal a response of the source of the radio emissions to the increased solar activity associated with the recent peak in the solar cycle.
Details
- Title: Subtitle
- New observations of the low frequency interplanetary radio emissions
- Creators
- W. S. Kurth - University of IowaD. A. Gurnett - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Geophysical research letters, Vol.18(10), pp.1801-1804
- DOI
- 10.1029/91GL02309
- ISSN
- 0094-8276
- eISSN
- 1944-8007
- Language
- English
- Date published
- 10/1991
- Description audience
- PUBLIC
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984455275902771
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