Interior structure of Neptune - Comparison with Uranus

Details Interior structure of Neptune - Comparison with Uranus Interior structure of Neptune - Comparison with Uranus

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991sci...253..648h&link_type=abstract

Science (ISSN 0036-8075), vol. 253, Aug. 9, 1991, p. 648-651.

Computer Science

53

Neptune (Planet), Planetary Rotation, Planetary Structure, Uranus (Planet), Density Distribution, Gravitation Theory, Neptune Atmosphere, Pressure Distribution, Voyager 2 Spacecraft

Scientific paper

Measurements of rotation rates and gravitational harmonics of Neptune made with the Voyager 2 spacecraft allow tighter constraints on models of the planet's interior. Shock measurements of material that may match the composition of Neptune, the so-called planetary 'ice', have been carried out to pressures exceeding 200 gigapascals (2 megabars). Comparison of shock data with inferred pressure-density profiles for both Uranus and Neptune shows substantial similarity through most of the mass of both planets. Analysis of the effect of Neptune's strong differential rotation on its gravitational harmonics indicates that differential rotation involves only the outermost few percent of Neptune's mass.

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