Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1775564 | Icarus | 2007 | 9 Pages |
Abstract
A strong, broad spectral emission feature at 85° N latitude centered at 221 cmâ1 remains unidentified after candidate ices of H2O and pure crystalline CH3CH2CN are unambiguously ruled out. A much shallower weak emission feature starts at 160 cmâ1 and blends into the strong feature at â¼190 cmâ1. This feature is consistent with one formed by an HCN ice cloud composed of ⩽5 μm radius particles that resides in the lower stratosphere somewhere below an altitude of 160 km. Titan's stratospheric aerosol appears to have a spectral emission feature at about 148 cmâ1. The aerosol abundance at 85° N is about a factor 2.2 greater than at 55° S.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
Robert E. Samuelson, Michael D. Smith, Richard K. Achterberg, John C. Pearl,