Models of Uranus and Neptune with partially mixed envelopes

Details Models of Uranus and Neptune with partially mixed envelopes Models of Uranus and Neptune with partially mixed envelopes

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988avest..22...23g&link_type=abstract

Astronomicheskii Vestnik (ISSN 0320-930X), vol. 22, Jan.-Mar. 1988, p. 23-40. In Russian.

Astronomy and Astrophysics

Astronomy

3

Astronomical Models, Neptune (Planet), Planetology, Protoplanets, Uranus (Planet), Planetary Composition, Planetary Evolution, Planetary Mantles

Scientific paper

The numerical modeling of models of Uranus and Neptune is described, and results of the construction of two- and three-layer models are presented. It is shown that the best models are three-layer models with mixing layers. A new value for the gravitational moment J4 for Uranus constrains the concentration of the ice material in the H2-He envelope, while the value of J2 determines the degree of mixing of the core rock material with ice mantle, which makes up about 70 percent of the core material. Evolution models are also considered, and a trend indicating a systematic increase of the age of the planets from Neptune to Jupiter is observed.

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