Isotopic ratios provide a powerful tool for understanding the origins of materials, including
the volatile and refractory matter within solar system bodies. Recent high sensitivity …

The updated 2009 edition of the spectroscopic database GEISA (Gestion et Etude des
Informations Spectroscopiques Atmosphériques; Management and Study of Atmospheric …

In this review I summarize the current state of knowledge about the composition of Titan's
atmosphere and our current understanding of the suggested chemistry that leads to that …

Planetary atmospheres is a relatively new, interdisciplinary subject that incorporates various
areas of the physical and chemical sciences, including geophysics, geophysical fluid …

This paper reports on the results from an extensive study of all nadir-looking spectra
acquired by Cassini/CIRS during the 44 flybys performed in the course of the nominal …

Carbon containing molecules in cold molecular clouds show various levels of isotopic
fractionation through multiple observations. To understand such effects, we have developed …

The existence of methane in Titan's atmosphere (∼ 6% level at the surface) presents a
unique enigma, as photochemical models predict that the current inventory will be entirely …

The Cassini spacecraft orbiting Saturn carries the composite infrared spectrometer (CIRS)
designed to study thermal emission from Saturn and its rings and moons. CIRS, a Fourier …

Although propane gas (C3H8) was first detected in the stratosphere of Titan by the Voyager
IRIS infrared spectrometer in 1980, obtaining an accurate measurement of its abundance …

In this paper we describe the first quantitative search for several molecules in Titan's
stratosphere in Cassini CIRS infrared spectra. These are: ammonia (NH3), methanol …