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NOTE: New Constraints on the Composition of Jupiter from Galileo Measurements an

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Title:
NOTE: New Constraints on the Composition of Jupiter from Galileo Measurements and Interior Models Authors:
Guillot, Tristan; Gautier, Daniel; Hubbard, William B. Affiliation:
AA(Department of Meteorology, University of Reading, Reading, United Kingdom), AB(Departement d'Études Spatiales, Observatoire de Paris, Meudon Cedex, France), AC(Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona) Publication:
Icarus, Volume 130, Issue 2, pp. 534-539. (Icarus Homepage) Publication Date:
12/1997 Origin:
ICAR; ELSEVIER Abstract Copyright:
(c) 1997 Academic Press DOI:
10.1006/icar.1997.5812 Bibliographic Code:
1997Icar..130..534G

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 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.
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