The shape and structure of Mimas |
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| Authors: | P Farinella A Milani A M Nobili P Paolicchi V Zappala |
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| Institution: | (1) Dipartimento di Matematica, dell'Università di Pisa, Pisa, Italy;(2) Osservatorio Astronomico di Brera, Merate (Como), Italy;(3) Osservatorio Astronomico di Torino, Pino Torinese (Torino), Italy |
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| Abstract: | The Voyager images have shown that Mimas and Enceladus have  regular shapes, with topography of the order of 1% of the diameter. Therefore, we can compare the global shapes of these satellites with the corresponding figures of gravitational equilibrium. In the case of Mimas, this comparison rules out a homogeneous interior, but implies the existence of a denser, presumably rocky core within this small icy satellite. |
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