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Experimental simulation of Titan's atmosphere: Detection of ammonia and ethylene oxide
Coustenis, A.; Coll, P.; Raulin, F. +1 more
For several years now, an experimental simulation of Titan's atmosphere has been on going at LISA. A cold plasma is established in a gas mixture representative of the atmosphere of the satellite. In these experiments, more than 70 organic compounds have been identified, including the first identification in this type of experimental simulation of …
The photochemical formation of a titan haze analog. Structural analysis by x-ray photoelectron and infrared spectroscopy
Tran, Buu N.; Ferris, James P.; Chera, John J.
The photochemical flow reactor (D.W. Clarke et al., 2000, Icarus 147, 282-291) has been modified to minimize the incorporation of oxygen and other impurities in the photoproducts. A mixture of gases that approximate their mixing ratios on Titan (N 2, CH 4, H 2, C 2H 2, C 2H 4
Oxirane: An Exotic Oxygenated Organic Compound on Titan?
Raulin, François; Coll, Patrice; Bernard, Jean-Michel +1 more
After the discovery of CO, CO2, and more recently H2O in Titan's atmosphere, the chemistry of oxygenated organic compounds in this environment has been limited to theoretical studies only. Both kinetic and thermochemical models predict the formation of methanol and formaldehyde as the main O-organic products. Here we show tha…
A study of the propagation of electromagnetic waves in Titan's atmosphere with the TLM numerical method
Morente, Juan A.; Portí, Jorge A.; Besser, Bruno P. +2 more
A numerical modeling of the electromagnetic characteristics of Titan's atmosphere is carried out by means of the TLM numerical method, with the aim of calculating the Schumann resonant frequencies of Saturn's satellite. The detection and measurement of these resonances by the Huygens probe, which will enter Titan's atmosphere at the beginning of 2…
Inverse radiation modeling of Titan's atmosphere to assimilate solar aureole imager data of the Huygens probe
Keller, H. U.; Grieger, B.; Markiewicz, W. J. +1 more
During the descent of the Huygens probe through Titan's atmosphere in January 2005, the Descent Imager/Spectral Radiometer (DISR) will perform upward and downward looking measurements at various spectral ranges and spatial resolutions. This internal radiation density could be estimated by radiative transfer calculations for Titan's atmosphere. How…
Simultaneous retrieval of optical depths and scattering phase functions in Titan's atmosphere from Huygens/DISR data
Keller, H. U.; Grieger, B.; Rodin, A. V. +1 more
In January 2005, the Huygens probe will descent through Titan's atmosphere and the Descent Imager/Spectral Radiometer (DISR) will perform upward and downward looking observations at various spectral ranges and spatial resolutions. One of the subinstruments, the Upward Looking Visible Spectrometer (ULVS), measures the total downward radiation flux …
A spherical model for computing polarized radiation in Titan's atmosphere
Keller, Horst U.; Grieger, Björn; Salinas, Santo V. +1 more
The Huygens descent through Titan's atmosphere in January 2005 will provide invaluable information about Titan's atmospheric composition and aerosol properties. The Descent Imager/Spectral Radiometer (DISR) will perform upward and downward looking radiation observations at various spectral ranges and spatial resolutions. To prepare the DISR data i…