On the luminosity of Saturn

Details On the luminosity of Saturn On the luminosity of Saturn

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981m%26p....25..131f&link_type=abstract

Moon and the Planets, vol. 25, Aug. 1981, p. 131, 132.

Computer Science

Atmospheric Composition, Helium Hydrogen Atmospheres, Luminosity, Planetary Radiation, Saturn Atmosphere, Thermal Radiation, Hydrogen, Jupiter Atmosphere, Phase Diagrams, Voyager 1 Spacecraft

Scientific paper

Data from the Voyager 1 spacecraft in December 1980 established a hydrogen/helium ratio in Saturn's atmosphere which is the same as that of Jupiter. This has previously been explained by immiscibility between helium and hydrogen, and resulting helium rain in Saturn. Since the results of Voyager 1 do not support this explanation, it is suggested that the critical temperature for the metallization of hydrogen is in the 6000-9000 K range (Franck, 1981). It is proposed that the Jupiter isentrope is well above the critical point while in Saturn the phase transition is close to or even below the critical point. This would mean that Saturn has a higher internal energy because the specific heat is higher. It is also proposed that Saturn cools off much quicker than Jupiter.

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