Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.312...27k&link_type=abstract
Nature (ISSN 0028-0836), vol. 312, Nov. 1, 1984, p. 27-31. Research sponsored by the University of Iowa and NASA.
Astronomy and Astrophysics
Astronomy
110
Extraterrestrial Radio Waves, Heliosphere, Radio Sources (Astronomy), Very Low Frequencies, Voyager Project, Interplanetary Space, Plasma Waves, Radio Emission, Radio Spectra
Scientific paper
A radio source in the outer heliosphere has been detected by the plasma wave receivers on Voyagers 1 and 2. The radio emission is observed in the frequency range 2-3 kHz, and is above the local solar wind electron plasma frequency whenever supporting plasma density data are available. The maximum spectral density of the emission recorded is about 10 to the -14th V-squared/m-squared/Hz. The bandwidth of the radio noise is about 1 kHz. Possible sources include continuum radiation from Jupiter's distant magnetotail and radiation at the second harmonic of the plasma frequency at the heliopause. If the latter interpretation is correct, these data represent the first remote observations of the heliopause.
Gurnett Donald A.
Kurth Willaim S.
Poynter Robert L.
Scarf Frederick L.
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