New Constraints on the Composition of Jupiter from Galileo Measurements and Interior Models

  title={New Constraints on the Composition of Jupiter from Galileo Measurements and Interior Models},
  author={Tristan Guillot and Daniel Gautier and William B. Hubbard},
Abstract Using the helium abundance measured by Galileo in the atmosphere of Jupiter and interior models reproducing the observed external gravitational field, we derive new constraints on the composition and structure of the planet. We conclude that, except for helium which must be more abundant in the metallic interior than in the molecular envelope, Jupiter could be homogeneous (no core) or could have a central dense core up to 12 M ⊕ . The mass fraction of heavy elements is less than 7.5… 


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