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Related papers: The Composition and Chemistry of Titan's Atmospher…

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Titan is the only moon with a substantial atmosphere, the only other thick N$_{2}$ atmosphere besides Earth's, the site of extraordinarily complex atmospheric chemistry that far surpasses any other solar system atmosphere, and the only…

Earth and Planetary Astrophysics · Physics 2018-01-10 Sarah M. Hörst

We apply previously introduced measures of chemical disequilibrium to Cassini mass spectroscopy data on the atmosphere of Titan. In the analysis presented here, we use an improved description, avoiding the meanfield approximation in…

Earth and Planetary Astrophysics · Physics 2019-07-03 Ben F. M. Intoy , J. Woods Halley

Previous investigations have employed more than 100 close observations of Titan by the Cassini orbiter to elucidate connections between the production and distribution of Titan's vast, organic-rich chemical inventory and its atmospheric…

Earth and Planetary Astrophysics · Physics 2018-10-01 A. E. Thelen , C. A. Nixon , N. J. Chanover , M. A. Cordiner , E. M. Molter , N. A. Teanby , P. G. J. Irwin , J. Serigano , S. B. Charnley

Titan has a climate system with similarities to Earth, including the presence of a thick atmosphere made up of several atmospheric layers. As on Earth, Titan's climate is influenced by several factors: the gaseous species making up the…

Earth and Planetary Astrophysics · Physics 2025-03-17 Zoé Perrin , Nathalie Carrasco , Thomas Gautier , Nathalie Ruscassier , Julien Maillard , Carlos Afonso , Ludovic Vettier

We present results of an investigation into the formation of nitrogen-bearing molecules in the atmosphere of Titan. We extend a previous model (Li et al. 2015, 2016) to cover the region below the tropopause, so the new model treats the…

Earth and Planetary Astrophysics · Physics 2016-10-05 Karen Willacy , Mark Allen , Yuk Yung

Submillimeter emission lines of carbon monoxide (CO) in Titan's atmosphere provide excellent probes of atmospheric temperature due to the molecule's long chemical lifetime and stable, well constrained volume mixing ratio. Here we present…

Titan's atmospheric composition and dynamical state have previously been studied over numerous epochs by both ground- and space-based facilities. However, stratospheric measurements remain sparse during Titan's northern summer and fall. The…

Between 2004 and 2007 the instruments of the CASSINI spacecraft discovered hydrocarbon lakes in the polar regions of Titan. We have developed a lake-atmosphere equilibrium model allowing the determination of the chemical composition of…

Earth and Planetary Astrophysics · Physics 2015-05-27 D. Cordier , O. Mousis , J. I. Lunine , S. Lebonnois , P. Rannou , P. Lavvas , L. Q. Lobo , A. G. M. Ferreira

Hundreds of radar-dark patches interpreted as lakes have been discovered in the north and south polar regions of Titan. We have estimated the composition of these lakes by using the direct abundance measurements from the Gas Chromatograph…

Earth and Planetary Astrophysics · Physics 2014-11-20 D. Cordier , O. Mousis , J. -I. Lunine , P. Lavvas , V. Vuitton

The temperature structure of Titan's upper atmosphere exhibits large variability resulting from numerous spatially and temporally irregular external energy sources, seasonal changes, and the influence of molecular species produced via…

Earth and Planetary Astrophysics · Physics 2024-02-06 A. E. Thelen , C. A. Nixon , R. Cosentino , M. A. Cordiner , N. A. Teanby , C. E. Newman , P. G. J. Irwin , S. B. Charnley

The formation and evolution of haze layers in planetary atmospheres play a critical role in shaping their chemical composition, radiative balance, and optical properties. In the outer solar system, the atmospheres of Titan and the giant…

Earth and Planetary Astrophysics · Physics 2025-08-06 David Dubois

Titan is one of the more distinctive bodies in our solar system. In addition to being the largest of Saturn's moons, its thick atmosphere gene-rates interest because of its similarities and differences with Earth [1, 2]. Like Earth, Titan's…

Earth and Planetary Astrophysics · Physics 2010-10-21 C. C. Harris , L. S. Matthews , T. W. Hyde

Titan harbors a dense, organic-rich atmosphere primarily composed of N$_2$ and CH$_4$, with lesser amounts of hydrocarbons and nitrogen-bearing species. As a result of high sensitivity observations by the Atacama Large…

Earth and Planetary Astrophysics · Physics 2020-11-11 A. E. Thelen , M. A. Cordiner , C. A. Nixon , V. Vuitton , Z. Kisiel , S. B. Charnley , M. Y. Palmer , N. A. Teanby , P. G. J. Irwin

Titan's thick atmosphere is primarily composed of nitrogen and methane. Complex chemistry happening in Titan's atmosphere produces optically thick organic hazes. These hazes play significant roles in Titan's atmosphere and on its surface,…

Earth and Planetary Astrophysics · Physics 2021-12-17 Chao He , Sarah M. Horst , Michael Radke , Marcella Yant

Seasonal variation is significant in Titan's atmosphere due to the large change of solar insolation resulting from Titan's 26.7{\deg} axial tilt relative to the plane of Saturn's orbit. Here we present an investigation of hydrocarbon and…

Earth and Planetary Astrophysics · Physics 2022-04-18 Siteng Fan , Daniel Zhao , Cheng Li , Donald E. Shemansky , Mao-Chang Liang , Yuk L. Yung

The organic haze produced from complex CH4/N2 chemistry in the atmosphere of Titan plays an important role in processes that occur in the atmosphere and on its surface. The haze particles act as condensation nuclei and are therefore…

Earth and Planetary Astrophysics · Physics 2013-05-27 Sarah M. Horst , Margaret A. Tolbert

The complex organic chemistry harbored by the atmosphere of Titan has been investigated in depth by Cassini observations. Among them, a series of solar occultations performed by the VIMS instrument throughout the 13 years of Cassini…

Earth and Planetary Astrophysics · Physics 2020-01-10 Thibaud Cours , Daniel Cordier , Benoît Seignovert , Luca Maltagliati , Ludovic Biennier

Titan's atmosphere is a natural laboratory for exploring the photochemical synthesis of organic molecules. Significant recent advances in the study of the atmosphere of Titan include: (a) detection of C$_3$ molecules: C$_3$H$_6$,…

Earth and Planetary Astrophysics · Physics 2022-07-27 Karen Willacy , SiHe Chen , Danica J. Adams , Yuk L. Yung

We retrieve vertical and meridional variations of methane mole fraction in Titan's lower troposphere by re-analyzing near-infrared ground-based observations from 17 July 2014 UT (Adamkovics et al., 2016). We generate synthetic spectra using…

Earth and Planetary Astrophysics · Physics 2017-02-22 Juan M. Lora , Mate Adamkovics

The Cassini-Huygens mission measured the chemical abundances of the major components of Titan's atmosphere, and analyses of the data revealed several as-yet unexplained anomalies in the methane and hydrogen profiles. We model the…

Earth and Planetary Astrophysics · Physics 2021-07-23 Erin E. Flowers , Christopher F. Chyba , Paul J. Thomas
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