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Related papers: Discovery of lake-effect clouds on Titan

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Atmospheric photochemistry on Titan continuously transforms methane and nitrogen gases into various organic compounds. This study explores the fate of these molecules when they land on Titan's surface. Our analytical exploration reveals…

Earth and Planetary Astrophysics · Physics 2024-01-08 Xinting Yu , Yue Yu , Julia Garver , Xi Zhang , Patricia McGuiggan

Titan, Saturn's largest moon, has a dense atmosphere, together with lakes and seas of liquid hydrocarbons. These liquid bodies, which are in polar regions and up to several hundred kilometres in diameter, generally have smooth surfaces…

Earth and Planetary Astrophysics · Physics 2019-05-03 Daniel Cordier , Nathalie Carrasco

Titan, the main satellite of Saturn, has an active cycle of methane in its troposphere. Among other evidence for a mechanism of evaporation at work on the ground, dry lakebeds have been discovered. Recent Cassini infrared observations of…

Earth and Planetary Astrophysics · Physics 2015-06-17 Daniel Cordier , Jason Barnes , Abel Ferreira

The Ice Giants Uranus and Neptune have hydrogen-based atmospheres with several constituents that condense in their cold upper atmospheres. A small number of bright cloud systems observed in both planets are good candidates for moist…

Earth and Planetary Astrophysics · Physics 2021-12-01 R. Hueso , T. Guillot , A. Sánchez-Lavga

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

Titan, Saturn's largest moon, is the only extraterrestrial body known to support stable liquid on its surface, in the form of seas and lakes that dot the polar regions. Many indications suggest that the liquid should be composed of a…

Earth and Planetary Astrophysics · Physics 2017-04-25 Daniel Cordier , Fernando Garcia-Sanchez , Daimler N. Justo-Garcia , Gerard Liger-Belair

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

Shematovich et al. (2003) recently showed plasma induced sputtering in Titan's atmosphere is a source of neutral nitrogen in Saturn's magnetosphere comparable to the photo-dissociation source. These sources form a toroidal nitrogen cloud…

Space Physics · Physics 2015-06-26 H. T. Smith , R. E. Johnson , V. I. Shematovich

Using adaptive optics on the W.M. Keck II telescope we imaged Titan several times during 1999 to 2001 in narrowband near-infrared filters selected to probe Titan's stratosphere and upper troposphere. We observed a bright feature around the…

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

Titan's 'detached' haze, seen in Voyager images in 1980 and 1981 and monitored by the Cassini Imaging Science Subsystem (ISS), during the period 2004-2017, provides a measure of seasonal activity in Titan's mesosphere with observations over…

Earth and Planetary Astrophysics · Physics 2018-05-01 Robert A. West , Benoît Seignovert , Pascal Rannou , Philip Dumont , Elizabeth P. Turtle , Jason Perry , Mou Roy , Aida Ovanessian

We investigate the effects of varying Saturn's orbit on the atmospheric circulation and surface methane distribution of Titan. Using a new general circulation model of Titan's atmosphere, we simulate its climate under four characteristic…

Earth and Planetary Astrophysics · Physics 2014-12-30 Juan M. Lora , Jonathan I. Lunine , Joellen L. Russell , Alexander G. Hayes

As the only icy satellite with a thick atmosphere and liquids on its surface, Titan represents a unique end-member to study the impact cratering process. Unlike craters on other Saturnian satellites, Titan's craters are preferentially…

Earth and Planetary Astrophysics · Physics 2023-06-12 Shigeru Wakita , Brandon C. Johnson , Jason M. Soderblom , Jahnavi Shah , Catherine D. Neish

The longevity of Cassini's exploration of Saturn's atmosphere (a third of a Saturnian year) means that we have been able to track the seasonal evolution of atmospheric temperatures, chemistry and cloud opacity over almost every season, from…

Earth and Planetary Astrophysics · Physics 2015-10-21 Leigh N. Fletcher , Thomas K. Greathouse , Julianne I. Moses , Sandrine Guerlet , Robert A. West

The geologically active south pole of Enceladus generates a plume of micron-sized particles, which likely form Saturn's tenuous E-ring extending from the orbit of Mimas to Titan. Interactions between these particles and satellites have been…

Earth and Planetary Astrophysics · Physics 2022-05-24 Naoyuki Hirata , Hideaki Miyamoto , Adam P. Showman

According to clues left by the Cassini mission, Titan, one of the two Solar System bodies with a hydrologic cycle, may harbor liquid hydrocarbon-based analogs of our terrestrial aquifers, referred to as "alkanofers". On the Earth, petroleum…

Earth and Planetary Astrophysics · Physics 2021-09-15 Daniel Cordier , David A. Bonhommeau , Tuan H. Vu , Mathieu Choukroun , Fernando Garcia-Sanchez

Saturn's largest satellite, Titan, has stratospheric wind speeds that may be up to ~210 m/sec [1], circling Titan in about a day compared to Titan's slow 16-day rotation. Theoretical models to explain such super-rotating winds are not well…

In this chapter we begin with a review of Titan's fluvial and lacustrine landscapes as observed with Cassini remote sensing data, and what the many discoveries have revealed about Titan's surface materials and climate. Yet Cassini remote…

Earth and Planetary Astrophysics · Physics 2025-02-05 Samuel P. D. Birch , Alexander G. Hayes , J. Taylor Perron