Detection of 13CH3D on Titan

被引：67

作者：

Bezard, Bruno

Nixon, Conor A.

Kleiner, Isabelle

Jennings, Donald E.

机构：

[1] Univ Paris Diderot, UPMC, CNRS, Observ Paris,LESIA, F-92190 Meudon, France

[2] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[3] Univ Paris 07, Univ Paris 12, LISA, F-94100 Creteil, France

[4] CNRS, F-94100 Creteil, France

[5] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

ICARUS | 2007年 / 191卷 / 01期

关键词：

Titan; atmospheres; composition;

D O I：

10.1016/j.icarus.2007.06.004

中图分类号：

P1 [天文学];

学科分类号：

0704 [天文学];

摘要：

We report the detection of (CH3D)-C-13 in Titan's stratosphere from Cassini/CIRS infrared spectra near 8.7 mu m. Fitting simultaneously the nu(6) bands of both (CH3D)-C-13 and (CH3D)-C-12 and the nu(4) band of CH4, we derive a D/H ratio equal to 1.32(-0).(+0.15)(11) x 10(-4) and a C-12/C-13 ratio in deuterated methane of 82(-18)(+27), consistent with that measured in normal methane. (C) 2007 Elsevier Inc. All rights reserved.

引用

页码：397 / 400

页数：4

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