Title: The Structure and Composition of Jupiter and Saturn
Abstract: view Abstract Citations (83) References (22) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Structure and Composition of Jupiter and Saturn Peebles, P. J. E. Abstract The most consistent results of model-planet calculations for Jupiter and Saturn are obtained if these planets are hot, with deep convecting atmospheres, and with the hydrogen and helium in the planets uniformly mixed. It is argued that this uniform mixing would be expected also from a general picture for the origin of the major planets. In the adopted models for Jupiter and Saturn thermal expansion from the density at 0 K amounts to 10 per cent at 2 X 100 atm. pressure and about 2000 K. This pressure is at a depth of 6 per cent of the planetary radius in Jupiter, and 15 per cent of the radius in Saturn. The results are based on a series of electronic-computer calculations of model planets, for various assumptions about the planetary atmosphere and about the abundance and distribution of helium. The models for Jupiter contain about 80 per cent hydrogen by mass. This is consistent with the available evidence on the solar hydrogen abundance, but it is substantially larger than the hydrogen abundance seen in objects outside the solar system. Publication: The Astrophysical Journal Pub Date: July 1964 DOI: 10.1086/147922 Bibcode: 1964ApJ...140..328P full text sources ADS |