New constraints on the composition of jupiter from Galileo measurements and interior models

Tristan Guillot, Daniel Gautier, William B. Hubbard

Research output: Contribution to journalArticle

56 Scopus citations


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 12M. The mass fraction of heavy elements is less than 7.5 times the solar value in the metallic envelope and between 1 and 7.2 times solar in the molecular envelope. The total amount of elements other than hydrogen and helium in the planet is between 11 and 45M.

Original languageEnglish (US)
Pages (from-to)534-539
Number of pages6
Issue number2
Publication statusPublished - Dec 1997


ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

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