This pair of images shows the planet Jupiter before (left - June 24, 1994) and after (right July 19, 1994) fragments of the comet Shoemaker-Levy 9 struck the planet in 1994. The disk of the planet is in the center of the images. The bright red spots are regions high above Jupiter's "surface" where electrons interacting with the planet's intense magnetic field are producing strong radio emission. These "radiation belts" are similar to the Van Allen Radiation Belts discovered above the Earth in 1958. The pair of images shows the effect of the comet impacts on this pattern of radio emission.
A 3-dimensional mapping of Jupiters radiation belts by the
Australian Telescopes Compact Array can be found
from Dr. R. Saults webpage
at
http://www.atnf.csiro.au/people/rsault/jupiter/movies/.
Investigator(s): Imke de Pater
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Telescope
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VLA
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Date of Observation
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1994-07-00
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Type of Observation
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Continuum Observations
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Band
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L
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Wavelength
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20 cm
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Frequency
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1.4 GHz
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Technical Caption
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