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Planetary torus

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Encyclopedia of Planetary Science

Part of the book series: Encyclopedia of Earth Science ((EESS))

Since the first observation of neutral sodium around the Jovian satellite Io (Brown, 1974), the subsequent identification of a neutral cloud extending along the orbit of Io, which followed it in its rotation around Jupiter (Matson et al. 1978), and the discovery of ionized sulfur and oxygen tori surrounding Io's orbit (Kupo, Meckler and Eviatar, 1976; Pilcher and Morgan, 1979), a significant number of planetary tori have been discovered in the vicinity of the satellites of the giant planets Jupiter, Saturn and Neptune. These tori may consist of either neutral or ionized species. They may completely surround the planet or may only consist of partial arcs; they may follow the satellite's orbit or lie in a different plane. However, planetary tori are found only around magnetized planets, with satellites embedded in the magnetosphere. This indicates that, despite this wide variety of morphological and physical differences, the planetary tori are a single class of planetary objects....

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  • Io; Ionosphere; Magnetospheres of the outer planets; Plasma; Radio astronomy; Radio science; Ulysses mission; Voyager missions

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Authors
  1. Renée Prangé
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© 1997 Chapman & Hall

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Prangé, R. (1997). Planetary torus . In: Encyclopedia of Planetary Science. Encyclopedia of Earth Science. Springer, Dordrecht. https://doi.org/10.1007/1-4020-4520-4_319

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  • DOI: https://doi.org/10.1007/1-4020-4520-4_319

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-0-412-06951-2

  • Online ISBN: 978-1-4020-4520-2

  • eBook Packages: Springer Book Archive

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