The Composition and Chemistry of Titan's Atmosphere

被引：11
|
作者：
Nixon, Conor A. [1 ]
机构：
[1] NASA, Planetary Syst Lab, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
来源：
ACS EARTH AND SPACE CHEMISTRY | 2024年 / 8卷 / 03期
关键词：
Titan; Astrochemistry; Astrobiology; Atmospheres; Photochemistry; ABSORPTION CROSS-SECTIONS; H-ATOM YIELDS; PHOTOFRAGMENT TRANSLATIONAL SPECTROSCOPY; SUBMILLIMETER HETERODYNE OBSERVATIONS; PHOTOCHEMICAL KINETICS UNCERTAINTIES; TEMPERATURE RATE COEFFICIENTS; VOYAGER INFRARED OBSERVATIONS; ELECTRON-ION RECOMBINATION; NEUTRAL-NEUTRAL REACTIONS; GAS-PHASE REACTIONS;
D O I：
10.1021/acsearthspacechem.2c00041
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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 observed composition. I begin with our present knowledge of the atmospheric composition, garnered from a variety of measurements including Cassini-Huygens, the Atacama Large Millimeter/submillimeter Array, and other ground- and space-based telescopes. This review focuses on the typical vertical profiles of gases at low latitudes rather than global and temporal variations. The main body of the review presents a chemical description of how complex molecules are believed to arise from simpler species, considering all known "stable" molecules-those that have been uniquely identified in the neutral atmosphere. The last section of the review is devoted to the gaps in our present knowledge of Titan's chemical composition and how further work may fill those gaps.
引用
收藏
页码：406 / 456
页数：51
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