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Communication Dans Un Congrès Année : 2011

Dissipative Behavior of Phobos as a Key Constraint on its Composition and Origin

Résumé

We compare and contrast the dissipative properties expected for two models of Phobos, the mysterious irregular satellite of Mars, target of the upcoming Phobos-GRUNT mission. These models are based on different scenarios for the origin of the satellite implying distinctive internal structures. We show that the presence of hydrated minerals and water ice can significantly increase tidal dissipation. In contrast dissipation in a rubble-pile subject to low tidal stress appears to be limited. Hence, it should be possible to constrain Phobos' interior and composition from accurate measurements of its dynamical properties.
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Dates et versions

hal-03734919 , version 1 (21-07-2022)

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Julie C. Castillo-Rogez, Nicolas Rambaux, Pascal Rosenblatt, Sébastien Le Maistre. Dissipative Behavior of Phobos as a Key Constraint on its Composition and Origin. AAS/Division for Planetary Sciences Meeting #43, Oct 2011, Nantes, France. pp.1673. ⟨hal-03734919⟩
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