Physics
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1659s&link_type=abstract
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1659
Physics
Scientific paper
Aerosols appear to be the primary component determining the properties of the Titan atmosphere. Observations using the Cassini UVIS spectrographs have provided measurements the aerosols in two related phenomena. The presence of these particles is found in occultation extinction spectra, and in emission spectra showing the distinctive characteristics of scattered solar radiation. The relationship between extinction properties and radiation scattering provides information on the particle physical properties. A calculation at high altitude provides simple single scattering considerations. The Titan encounter on 2004 DOY 184 provided observations above the sub solar region at solar phase ~ 90 deg. Combined accumulated stellar occultation and emission measurements allow calculation of a Mie theory particle radius of 76A using tholin index of refraction properties[1]. The mixing ratio is estimated at 10-6 at 1030 km altitude.
Liang Mao-Chang
Shemansky Don E.
Yung Yuk L.
Zhang Xinyu
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