Detection of C2HD and the D/H ratio on Titan

• Published in: Icarus (New York, N.Y. 1962) Vol. 197; no. 2; pp. 539 - 548
• Main Authors: Coustenis, Athena, Jennings, Donald E., Jolly, Antoine, Bénilan, Yves, Nixon, Conor A., Vinatier, Sandrine, Gautier, Daniel, Bjoraker, Gordon L., Romani, Paul N., Carlson, Ronald C., Flasar, F. Michael
• Format: Journal Article
• Language: English
• Published: San Diego, CA Elsevier 01.10.2008
• Subjects: Astronomy; Astrophysics; Earth, ocean, space; Exact sciences and technology; Physics; Solar system; Methane; Satellite atmospheres; Uncertainty; Infrared observation; Abundance; Titan; Atmospheres; Acetylene; atmospheres; Satellites; Upper bound; composition; Saturn satellite; composition; Infrared observations; Satellites; Solar system; Titan

We report here the first detection of mono-deuterated acetylene (acetylene-d1, C 2HD) in Titan's atmosphere from the presence of two of its emission bands at 678 and 519 cm -1 as observed in CIRS spectral averages of nadir and limb observations taken between July 2004 and mid-2007. By using new...