Simulating the 3.4-Micron Feature of Titan’s Haze 


Vol. 34,  No. 3, pp. 759-762, Mar.  2013
10.5012/bkcs.2013.34.3.759


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  Abstract

Four prominent features of Titan’s haze are found within the ‘3.4-μm’ absorption to be uniform with recent vertically resolved Cassini/VIMS spectra.1 These are absorptions at 2998 cm−1 (3.34 μm), 2968 cm−1 (3.37 μm), 2927 cm−1 (3.42 μm), and 2882 cm−1 (3.47 μm). A detailed fitting suggests that the 2998 cm−1 feature could originate from amorphous acetonitrile (CH3CN) carrying about 25% of integrated optical depth; the remaining features, which account for 75% of the integrated optical depth, could arise from a distinct triplet (C-H stretching) structure of radiolyzed hydrocarbons. An additional feature was possibly evidenced at altitudes higher than 300 km and attributable to ‘polymer-capped’ methane (CH4), significantly constraining the chemical composition of organic haze layers under Titan’s active radiation field.

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  Cite this article

[IEEE Style]

Y. S. Kim, C. Ennis, S. J. Kim, "Simulating the 3.4-Micron Feature of Titan’s Haze," Bulletin of the Korean Chemical Society, vol. 34, no. 3, pp. 759-762, 2013. DOI: 10.5012/bkcs.2013.34.3.759.

[ACM Style]

Y. S. Kim, C. Ennis, and Sang Joon Kim. 2013. Simulating the 3.4-Micron Feature of Titan’s Haze. Bulletin of the Korean Chemical Society, 34, 3, (2013), 759-762. DOI: 10.5012/bkcs.2013.34.3.759.