Computation of Jupiter interior models from gravitational inversion theory

Physics

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Gravitation Theory, Hydrostatics, Inversions, Jupiter (Planet), Planetary Structure, Barotropism, Planetary Rotation, Pressure Distribution, Temperature Distribution, Jupiter, Interiors, Models, Gravity Effects, Theoretical Studies, Parameters, Physical Properties, Distribution, Saturn, Planets

Scientific paper

Spacecraft measurements of Jupiter have provided the mass, standard pressure level radius, rotation law, internal mass distribution multipole moments, and internal composition and temperature distribution constraints, for the present implementation of a method for deriving planetary interior models that exactly satisfy a set of N gravitational constraints by means of appropriate iteration. The models are not forced to fit the more indirectly derived constraints, which are instead used as conistency checks. In the case of an He mass fraction in the envelope Y of 0.2, the inferred pressure at a mass density of about 0.2 g/cu cm is about a factor of 2 higher than would be indicated by experimental H compression data in the relevant pressure range of 100,000 to one million bar. The inferred pressure distribution is in better agreement with the shock data for a nominal Y value of 0.3 + or - 0.05.

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