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IN SEARCH OF URANIAN DECAMETRIC EMISSION
G. R. LEBO and L. T. ROTH
Publications of the Astronomical Society of the Pacific
Vol. 97, No. 588 (February 1985), pp. 177-179
Published by: Astronomical Society of the Pacific
Stable URL: http://www.jstor.org/stable/40678470
Page Count: 3
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Recent evidence suggests that the planet Uranus possesses a strong magnetic field, raising the possibility that Uranus may, like Jupiter, emit low-frequency radio radiation. Experience with Jupiter indicates that the Jovian decametric radiation (DAM) is emitted in "search-light" beams of distinctive cross-sectional shape, associated with the inner Jovian magnetosphere. Uranus is currently nearly "pole on" toward the earth due to the high inclination (98°) of its axis, providing the opportunity to observe its polar aspect—unlike Jupiter, which presents only an equatorial aspect (inclination 3°.7). Uranus was monitored some 106 hours in the spring of 1983 using the 26.3 MHz array at the University of Florida Dixie County Radio Observatory. No radiation was discerned as Uranian yielding an upper flux density limit of 400 Jy (1 Jy = 10⁻²⁶ W M⁻² Hz⁻¹).
Publications of the Astronomical Society of the Pacific © 1985 The University of Chicago Press