A massive core in Jupiter predicted from first-principles simulations

B. Militzer, William B. Hubbard, J. Vorberger, I. Tamblyn, S. A. Bonev

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Hydrogen-helium mixtures at conditions of Jupiter's interior are studied with first-principles computer simu-lations. The resulting equation of state (EOS) implies that Jupiter possesses a central core of 14-18 Earth masses of heavier elements, a result that supports core accretion as the standard model for the formation of hydrogen-rich giant planets. Our nominal model has about 4 Earth masses of planetary ices in the H-He-rich mantle, a result that is, within a modeling uncertainty of 6 Earth masses, consistent with abundances measured by the 1995 Galileo entry probe mission, suggesting that the composition found by the probe may be representative of the entire planet. Interior models derived from this first-principles EOS do not give a match to Jupiter's gravity moment J4 unless one invokes interior differential rotation, implying that Jovian interior dynamics has an ob-servable effect on the high-order gravity field.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume687
Issue number1 PART 2
DOIs
StatePublished - 2008

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Jupiter (planet)
Jupiter
equation of state
planets
equations of state
planet
probe
hydrogen
gravitation
simulation
probes
heavy elements
gravity field
entry
helium
Earth mantle
ice
accretion
gravity
mantle

Keywords

  • Dense matter
  • Equation of state
  • Individual (jupiter)
  • Planets and satellites
  • Subject headings

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

A massive core in Jupiter predicted from first-principles simulations. / Militzer, B.; Hubbard, William B.; Vorberger, J.; Tamblyn, I.; Bonev, S. A.

In: Astrophysical Journal, Vol. 687, No. 1 PART 2, 2008.

Research output: Contribution to journalArticle

Militzer, B. ; Hubbard, William B. ; Vorberger, J. ; Tamblyn, I. ; Bonev, S. A. / A massive core in Jupiter predicted from first-principles simulations. In: Astrophysical Journal. 2008 ; Vol. 687, No. 1 PART 2.
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