Latitudinal variation in Titan's haze from Voyager imaging

Details Latitudinal variation in Titan's haze from Voyager imaging Latitudinal variation in Titan's haze from Voyager imaging

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001dps....33.3802l&link_type=abstract

American Astronomical Society, DPS Meeting #33, #38.02; Bulletin of the American Astronomical Society, Vol. 33, p.1109

Astronomy and Astrophysics

Astronomy

Scientific paper

Titan showed an unexpected north-south asymetry when the Voyager spacecraft flew by in the 1980. Images taken in with the Imaging Sub Systems on these spacecraft showed the presence of a main and a detached haze layer. Rannou et al. 1997 (JGR 102, 10.997) analyzed two high phase angle images applying a microphysical model for fractal particles and a scattering radiative transfer model, working with a code of optical properties for fractal aggregates. From fitting the I/F-altitude profiles they obtained information about the production altitude and the mean aggregate structure. Here, we present the results of the analysis of about ten images at different phase angles and in different wavelength filters. Simultaneous fits of all data show that the latitudinal variation of the haze characteristics (aerosols number, size and structure) is small.

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