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Related papers: Detection of Propadiene on Titan

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Of the C$_{3}$H$_{x}$ hydrocarbons, propane (C${_3}$H$_{8}$) and propyne (methylacetylene, CH$_{3}$C$_{2}$H) were first detected in Titan's atmosphere during the Voyager 1 flyby in 1980. Propene (propylene, C$_{3}$H$_{6}$) was first…

Earth and Planetary Astrophysics · Physics 2018-09-13 Nicholas A Lombardo , Conor A Nixon , Richard K Achterberg , Antoine Jolly , Keeyoon Sung , Patrick G J Irwin , F Michael Flasar

The Voyager 1 flyby of Titan in 1980 gave a first glimpse of the chemical complexity of Titan's atmosphere, detecting many new molecules with the infrared spectrometer (IRIS). These included propane (C3H8) and propyne (CH3C2H), while the…

We report the first detection on Titan of the small cyclic molecule cyclopropenylidene (c-C3H2) from high sensitivity spectroscopic observations made with the Atacama Large Millimeter/sub-millimeter Array (ALMA). Multiple lines of…

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

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

We report the first detection of stratospheric propadiene (CH$_2$CCH$_2$) and propene (C$_3$H$_6$) at Jupiter's mid-to-high northern latitudes using IRTF-TEXES measurements recorded on March 5-6, 2025. Using radiative transfer software to…

Titan, the biggest moon of Saturn, has a thick atmosphere which presents similarities with the one thought to be on Earth at its beginning. The study of Titan s photochemical haze is thus a precious tool in gaining knowledge of the…

Earth and Planetary Astrophysics · Physics 2018-06-26 Julien Maillard , Nathalie Carrasco , Isabelle Schmitz-Afonso , Thomas Gautier , Carlos Afonso

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 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…

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

Titan, Saturn's largest satellite, maintains an atmosphere composed primarily of nitrogen (N$_2$) and methane (CH$_4$) that leads to a complex organic chemistry. Some of the nitriles (CN-bearing organics) on Titan are known to have…

Earth and Planetary Astrophysics · Physics 2025-03-14 J. Nosowitz , M. A. Cordiner , C. A. Nixon , A. E. Thelen , Z. Kisiel , N. A. Teanby , P. G. J. Irwin , S. B. Charnley , V. Vuitton

I report the results of a new set of calculations for the gravitational contraction of the proto-solar cloud to quantify the idea that Titan may be a captured moon of Saturn (Prentice 1981, 1984). It is proposed that Titan initially…

Astrophysics · Physics 2007-05-23 A. J. R. Prentice

As the only moon in the solar system with a thick atmosphere, Titan is a compelling and enigmatic world containing a complex organic haze. Polycyclic aromatic hydrocarbon (PAH) molecules are believed to play an essential role in the…

Earth and Planetary Astrophysics · Physics 2025-03-27 Li Zhou , Kaijun Li , Aigen Li , Zheng Zhou

The origin of the atmosphere of the largest moon of Saturn, Titan, is poorly understood and its chemistry is rather complicated. Ground-based millimeter/sub-millimeter heterodyne spectroscopy resolves line shapes sufficiently to determine…

Earth and Planetary Astrophysics · Physics 2017-08-02 M. Rengel , H. Sagawa , P. Hartogh

Titan, the largest satellite of Saturn, has an atmosphere chiefly made up of N2 and CH4 and includes traces of many simple organic compounds. This atmosphere also partly consists of haze and aerosol particles which during the last 4.5…

Earth and Planetary Astrophysics · Physics 2009-06-22 S. Pilling , D. P. P. Andrade , Alvaro C. Neto , R. Rittner , A. Naves de Brito

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

We report the first spectroscopic detection of ethyl cyanide (C$_2$H$_5$CN) in Titan's atmosphere, obtained using spectrally and spatially resolved observations of multiple emission lines with the Atacama Large Millimeter/submillimeter…

We present the first observations of propane (C$_3$H$_8$) on Titan that unambiguously resolve propane features from other numerous stratospheric emissions. This is accomplished using a $R=\lambda/\delta\lambda\approx10^5$ spectrometer…

Astrophysics · Physics 2009-11-10 H. G. Roe , T. K. Greathouse , M. J. Richter , J. H. Lacy

Saturn's largest satellite, Titan, has a thick atmosphere dominated by nitrogen and methane. The dense orange-brown smog hiding the satellite's surface is produced by photochemical reactions of methane, nitrogen and their dissociation…

Astrophysics · Physics 2009-11-13 Olivier Mousis , Bernard Schmitt

Vinyl cyanide (C$_2$H$_3$CN) is theorized to form in Titan's atmosphere via high-altitude photochemistry and is of interest regarding the astrobiology of cold planetary surfaces due to its predicted ability to form cell membrane-like…

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