Polar regions of Jupiter and Saturn

Details Polar regions of Jupiter and Saturn Polar regions of Jupiter and Saturn

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985avest..19...48t&link_type=abstract

(Astronomicheskii Vestnik, vol. 19, Jan.-Mar. 1985, p. 48-63) Solar System Research (ISSN 0038-0946), vol. 19, no. 1, July 1985,

Astronomy and Astrophysics

Astronomy

2

Aerosols, Jupiter (Planet), Limb Darkening, Optical Properties, Polar Regions, Saturn (Planet), Absorption Spectra, Atmospheric Composition, Magnetic Fields, Polarization (Waves)

Scientific paper

It is shown that the observed photometric, spectral, and polarization properties of the polar regions of Jupiter and Saturn are due primarily to the presence of aerosols above the main cloud deck. On Jupiter the aerosol haze with an optical depth of about 0.2-0.3, is responsible for the limb darkening at the polar regions, which remains even in the ultraviolet. Moreover, an altitude-limited layer of very fine particles, whose optical depth also does not exceed 0.2-0.3, must exist at the 30-mbar level near the poles. The aerosol distribution is not the same in the north and south polar regions of Jupiter. On Saturn the aerosol haze above the polar regions, also with strong ultraviolet absorption, must have a greater optical depth than on Jupiter, but there is evidently no isolated high-altitude layer.

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