The role of the molecular-metallic transition of hydrogen in the evolution of Jupiter, Saturn, and brown dwarfs

Didier Saumon, William B. Hubbard, Gilles Chabrier, Hugh M. Van Horn

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

An equation of state for hydrogen which predicts a molecular-metallic phase transition at finite temperatures has become available recently. A companion paper addresses the issue of the internal structures of Jupiter and Saturn, as derived with this new equation of state. Here we study the effect of this phase transition on the cooling histories of these two giant planets and of substellar brown dwarfs. The phase transition alters the present age of Jupiter and of Saturn by a few percent. Interestingly, the cooling of brown dwarfs is most strongly affected at the time when the interior adiabat crosses the critical point of the phase transition.

Original languageEnglish (US)
Pages (from-to)827-831
Number of pages5
JournalAstrophysical Journal
Volume391
Issue number2
StatePublished - Jun 1 1992

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Saturn
phase transition
Jupiter (planet)
Jupiter
hydrogen
equation of state
equations of state
cooling
planets
critical point
planet
histories
history
temperature

Keywords

  • Equation of state
  • Molecular processes
  • Planets and satellites: individual (Jupiter, Saturn)
  • Stars: low-mass, brown dwarfs

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

The role of the molecular-metallic transition of hydrogen in the evolution of Jupiter, Saturn, and brown dwarfs. / Saumon, Didier; Hubbard, William B.; Chabrier, Gilles; Van Horn, Hugh M.

In: Astrophysical Journal, Vol. 391, No. 2, 01.06.1992, p. 827-831.

Research output: Contribution to journalArticle

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