Images of Io's Sodium Cloud
- 3 February 1978
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 199 (4328), 531-533
- https://doi.org/10.1126/science.199.4328.531
Abstract
The first direct images of Io's sodium cloud are reported and analyzed. The observed cloud extends for more than 105 kilometers along Io's orbit and is a somewhat "banana-shaped" partial toroid. More sodium atoms precede Io than follow it. A model based on the escape of sodium from a specific localized area on Io provides a reasonable fit to the observed intensity distribution whereas isotropic escape does not.Keywords
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