Titan's Interior Structure and Dynamics After the Cassini-Huygens Mission
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10436275" target="_blank" >RIV/00216208:11320/21:10436275 - isvavai.cz</a>
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9JE04x55Uv" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9JE04x55Uv</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1146/annurev-earth-072920-052847" target="_blank" >10.1146/annurev-earth-072920-052847</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Titan's Interior Structure and Dynamics After the Cassini-Huygens Mission
Popis výsledku v původním jazyce
The Cassini-Huygens mission that explored the Saturn system during the period 2004-2017 revolutionized our understanding of Titan, the only knownmoon with a dense atmosphere and the only body, besides Earth, with stable surface liquids. Its predominantly nitrogen atmosphere also contains a few percent of methane that is photolyzed on short geological timescales to form ethane and more complex organic molecules. The presence of a significant amount of methane and Ar-40, the decay product of K-40, argues for exchange processes from the interior to the surface. Here we review the information that constrains Titan's interior structure. Gravity and orbital data suggest that Titan is an ocean world, which implies differentiation into a hydrosphere and a rocky core. The mass and gravity data complemented by equations of state constrain the ocean density and composition as well as the hydrosphere thickness. We present end-member models, review the dynamics of each layer, and discuss the global evolution consistent with the Cassini-Huygens data. Titan is the only moon with a dense atmosphere where organic molecules are synthesized and have sedimented at the surface. The Cassini-Huygens mission demonstrated that Titan is an ocean world with an internal water shell and liquid hydrocarbon seas at the poles. Interactions between water, rock, and organics may have occurred during most of Titan's evolution, which has strong astrobiological implications. Data collected by the Dragonfly mission and comparison with the JUpiter ICy moons Explorer (JUICE) data for Ganymede will further reveal Titan's astrobiology potential.
Název v anglickém jazyce
Titan's Interior Structure and Dynamics After the Cassini-Huygens Mission
Popis výsledku anglicky
The Cassini-Huygens mission that explored the Saturn system during the period 2004-2017 revolutionized our understanding of Titan, the only knownmoon with a dense atmosphere and the only body, besides Earth, with stable surface liquids. Its predominantly nitrogen atmosphere also contains a few percent of methane that is photolyzed on short geological timescales to form ethane and more complex organic molecules. The presence of a significant amount of methane and Ar-40, the decay product of K-40, argues for exchange processes from the interior to the surface. Here we review the information that constrains Titan's interior structure. Gravity and orbital data suggest that Titan is an ocean world, which implies differentiation into a hydrosphere and a rocky core. The mass and gravity data complemented by equations of state constrain the ocean density and composition as well as the hydrosphere thickness. We present end-member models, review the dynamics of each layer, and discuss the global evolution consistent with the Cassini-Huygens data. Titan is the only moon with a dense atmosphere where organic molecules are synthesized and have sedimented at the surface. The Cassini-Huygens mission demonstrated that Titan is an ocean world with an internal water shell and liquid hydrocarbon seas at the poles. Interactions between water, rock, and organics may have occurred during most of Titan's evolution, which has strong astrobiological implications. Data collected by the Dragonfly mission and comparison with the JUpiter ICy moons Explorer (JUICE) data for Ganymede will further reveal Titan's astrobiology potential.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10500 - Earth and related environmental sciences
Návaznosti výsledku
Projekt
<a href="/cs/project/GA19-10809S" target="_blank" >GA19-10809S: Termomechanické procesy v ledových měsících z pohledu numerického modelování</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Annual Review of Earth and Planetary Sciences
ISSN
0084-6597
e-ISSN
—
Svazek periodika
49
Číslo periodika v rámci svazku
2021
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
29
Strana od-do
579-607
Kód UT WoS článku
000661535000023
EID výsledku v databázi Scopus
2-s2.0-85107062524