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

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

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...391..827s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 391, no. 2, June 1, 1992, p. 827-831.

Astronomy and Astrophysics

Astrophysics

45

Brown Dwarf Stars, Jupiter (Planet), Phase Transformations, Planetary Evolution, Saturn (Planet), Boundary Conditions, Giant Stars, Luminosity, Stellar Evolution

Scientific paper

An equation of state for hydrogen which predicts a molecular-metallic phase transition at finite temperatures has become available recently. The effect of this phase transition on the cooling histories of these two giant planets and of substellar brown dwarfs is studied. 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.

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