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Science 10 April 1981:
Vol. 212. no. 4491, pp. 239 - 243
DOI: 10.1126/science.212.4491.239
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Articles
Planetary Radio Astronomy Observations from Voyager 1 Near Saturn
J. W. WARWICK 1,
J. B. PEARCE 1,
D. R. EVANS 1,
T. D. CARR 2,
J. J. SCHAUBLE 2,
J. K. ALEXANDER 3,
M. L. KAISER 3,
M. D. DESCH 3,
M. PEDERSEN 4,
A. LECACHEUX 4,
G. DAIGNE 4,
A. BOISCHOT 4, and
C. H. BARROW 4
1 Radiophysics, Inc., Boulder, Colorado 80301
2 Department of Astronomy, University of Florida, Gainesville 32611
3 Laboratory for Extraterrestrial Physics, Goddard Space Flight Center, Greenbelt, Maryland 20711
4 Observatoire de Paris, Section d'Astrophysique de Meudon, 92190 Meudon, France
The Voyager 1 planetary radio astronomy experiment detected two distinct kinds of radio emissions from Saturn. The first, Saturn kilometric radiation, is strongly polarized, bursty, tightly correlated with Saturn's rotation, and exhibits complex dynamic spectral features somewhat reminiscent of those in Jupiter's radio emission. It appears in radio frequencies below about 1.2 megahertz. The second kind of radio emission, Saturn electrostatic discharge, is unpolarized, extremely impulsive, loosely correlated with Saturn's rotation, and very broadband, appearing throughout the observing range of the experiment (20.4 kilohertz to 40.2 megahertz). Its sources appear to lie in the planetary rings.
Submitted on February 9, 1981
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