| タイトル | Saturn's Atmospheric Composition from Observations by the Cassini/Composite Infrared Spectrometer |
| 本文（外部サイト） | http://hdl.handle.net/2060/20100032973 |
| 著者（英） | Abbas, M. M.; Achterberg, R. K.; Flasar, F. M.; LeClair, A. C.; Kunde, V. G.; Young, M. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 2010-07-18 |
| 言語 | eng |
| 内容記述 | Thermal emission infrared observation of Saturn s atmosphere are being made by the Composite Infrared Spectrometer (CIRS) aboard the Cassini spacecraft since its insertion in Saturn s orbit on July 2nd, 2004. The measurements made in both limb and nadir modes of observations consist of infrared spectra in the 10-1400/cm region with a variable spectral resolution of 0.53/cm and 2.8/cm, and exhibit rotational and vibrational spectral features that may be analyzed for retrieval of the thermal structure and constituent distribution of Saturn s atmosphere. In this paper, we present a comprehensive analysis of the CIRS infrared observed spectra for retrieval of Saturn s atmospheric composition focusing on the distributions of some selected hydrocarbons, phosphine, ammonia, and possible determination of the isotopic ratios of some species with sufficiently strong isolated spectral features. A comparison of the retrieved constituent distributions with the available data in the literature will be made. |
| NASA分類 | Astronomy |
| レポートNO | M10-0339 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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