Other
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.0908r&link_type=abstract
American Astronomical Society, DPS meeting #39, #9.08; Bulletin of the American Astronomical Society, Vol. 39, p.425
Other
Scientific paper
As Uranus reaches equinox, it continues to display clear hemispheric asymmetry. Hubble Space Telescope observations made in 2006-07 are being modeled to determine the evolution of vertical scattering structure in Uranus' atmosphere at 45°N and 45°S. Center-to-limb profiles of specific intensity at both latitudes are compared with those produced by multiple scattering in an atmosphere containing Rayleigh/Raman scattering gas, stratospheric haze, and one or more cloud layers in the troposphere.
The southern polar cap has faded in brightness at 700-1000 nm, leaving the polar collar near 45°S as the most prominent southern feature. The northern hemisphere remains nearly free of latitudinal banding at wavelengths <1000 nm, with no clear indication to date of a forming northern polar cap or polar collar. These and other results will be presented at the meeting.
This work was funded through the Space Telescope Science Institute.
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Hammel Heidi Beth
Rages Kathy Ann
Sromovsky Lawrence
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