Journal
ICARUS
Volume 178, Issue 1, Pages 165-170Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.icarus.2005.03.011
Keywords
titan; infrared; acetylene; cyanoacetylene; atmosphere composition
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Infrared spectra of crystalline HC3N and C2H2 were investigated at several temperatures between 15 and 150 K. The characteristics of the 505 and 753 cm(-1) bands Of HC3N are in complete agreement with the emission spectral data on Titan obtained by the Voyager IRIS instrument, thus confirming the identification of crystalline HC3N on Titan. A composite spectrium in the 720-800 cm(-1) region, with contributions from HC3N and C2H2 in crystalline phases, reproduces the Voyager emission data in that region, thus providing a Suggestion for the identification of crystalline C2H2 on Titan. (c) 2005 Elsevier Inc. All rights reserved.
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