Physics
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....9215037p&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Dec. 30, 1987, p. 15037-15065.
Physics
47
Atmospheric Models, Haze, Hydrocarbons, Stratosphere, Uranus Atmosphere, Aerosols, Atmospheric Chemistry, Particulates, Planetary Limb, Voyager 2 Spacecraft
Scientific paper
The characteristics and origin of lower-stratosphere haze on Uranus are investigated on the basis of high-phase-angle images obtained at 430-600 nm with the wide-angle and narrow-angle cameras of Voyager 2 during its encounter with Uranus in January 1986. The data-reduction and model-fitting procedures are explained in detail, and the results are presented in extensive tables and graphs. The data are found to be best matched by a haze consisting of particles of modal radius 130 + or - 20 nm and number density 2 + or - 1 per cu cm at the 44-mbar level; such aerosols could be formed by the stratospheric condensation of photochemically produced hydrocarbon gases (locally formed diacetylene and ethane, acetylene, and diacetylene formed at higher altitudes). A total aerosol production rate of (2-15) x 10 to the -17th g/sq cm sec is estimated.
Pollack James B.
Pope Shelly K.
Rages Kathy
Romani Paul N.
Tomasko Martin G.
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