Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988plas.rept...95m&link_type=abstract
In NASA, Washington, Reports of Planetary Astronomy, p 95-96 (SEE N89-16624 08-89)
Astronomy and Astrophysics
Astronomy
Atmospheric Chemistry, Microwaves, Planetary Atmospheres, Planetary Rings, Saturn (Planet), Uranus (Planet), Albedo, Astronomy, Gravitation
Scientific paper
This grant supports the core program in planetary astronomy at Caltech. The research includes observations in the IR, sub-mm, mm and cm wavelengths at national and Caltech observatories with a strong emphasis on integrating the observations with spacecraft data and with models of atmospheric structure, dynamics and chemistry. Muhleman's group made extensive observations of Saturn, Uranus and Neptune which are being interpreted in terms of deep atmospheric structures which are obvious in the 2 and 6 cm maps of Saturn and Uranus. The microwave measurements are one of the few sources of information below the 2 bar level. Goldreich is investigating the dynamics of narrow rings with postdoctoral fellow, Pierre-Yves Longaretti. Their work has focused on the role of collisional stresses on the precession of the rings, since the Voyager radio science results imply that the previous model based on the ring's self-gravity is not the entire story. In addition Borderies, Goldreich and Tremaine have completed an investigation of the dynamics of the Encke division in Saturn's A ring.
Goldreich Peter
Ingersoll P. A. P. A.
Muhleman Duane O.
Westphal Andrew J.
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