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Detailed Reference Information |
Leblanc, Y. and Dulk, G.A. (1995). Changes in brightness of Jupiter's radiation belts at 13 and 22 cm during and after impacts of comet SL-9. Geophysical Research Letters 22: doi: 10.1029/95GL01193. issn: 0094-8276. |
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The Australia Telescope provided 2-D images of the changes in Jupiter radiation belts caused by comet Shoemaker-Levy 9 with a resolution of 4″¿18″ at 13 cm and 7″¿30″ at 22 cm. Before the impacts, at 22 cm, the images and 1-D scans along the magnetic equator were very similar to those observed at 20 cm by the VLA 12 years earlier at the same longitudes. During and after the SL-9 impacts, the belts were brighter than before, and remained bright at least 12 days after the first impact. The increase in brightness was not the same at all longitudes; it was almost entirely confined to one hemisphere, between 100¿ and 240¿ longitude, where the magnetic field is the stronger. The separation between the peaks of intensity decreased from 2.92 RJ to 2.82 RJ over the 12 days. The changes in the belts at 13 cm were similar to those observed at 22 cm. The new asymmetry implies the existence of a new or a newly accelerated population of electrons confined to a portion of the magnetic field of the planet. ¿ American Geophysical Union 1995 |
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Abstract |
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Keywords
Magnetospheric Physics, Energetic particles, trapped, Magnetospheric Physics, Plasma convection, Planetology, Comets and Small Bodies, General or miscellaneous, Radio Science, Radio astronomy |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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