Internal structure

Internal structure - Internal structure Figure 15: Model of...

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Internal structure Figure 15: Model of the interior of Enceladus based on recent Cassini findings. The inner, silicate core is represented in brown, while the outer, water-ice-rich mantle is represented in white. The yellow and red colors in the mantle and core respectively represent a proposed diapir under the south pole. [42] Prior to the Cassini mission, relatively little was known about the interior of Enceladus. However, results from recent flybys of Enceladus by the Cassini spacecraft have provided much needed information for models of Enceladus's interior. These include a better determination of the mass and tri-axial ellipsoid shape, high-resolution observations of the surface, and new insights on Enceladus's geochemistry . Mass estimates from the Voyager program missions suggested that Enceladus was composed almost entirely of water ice. [29] However, based on the effects of Enceladus's gravity on Cassini , its mass was determined to be much higher than previously thought, yielding a density of 1.61
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This note was uploaded on 12/15/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.

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Internal structure - Internal structure Figure 15: Model of...

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