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Accession Number N20120013423
Title Do Titan's Mountains Betray the Late Acquisition of its Current Atmosphere.
Publication Date Oct 2011
Media Count 2p
Personal Author F. Nimmo J. M. Moore
Abstract Titan may have acquired its massive atmosphere relatively recently in solar system history (1,2,3,4). Prior to that time, Titan would have been nearly airless, with its volatiles frozen or sequestered. Present-day Titan experiences only small (approximately 4 K) pole-to-equator variations, owing to efficient heat transport via the thick atmosphere (5); these temperature variations would have been much larger (approximately 20 K) in the absence of an atmosphere. If Titan's ice shell is conductive, the change in surface temperature associated with the development of an atmosphere would have led to changes in shell thickness. In particular, the poles would move down (inducing compression) while the equator would move up.
Keywords Heat transfer
Land ice
Mathematical models
Surface temperature
Titan atmosphere

Source Agency National Aeronautics and Space Administration
NTIS Subject Category 54 - Astronomy & Astrophysics
84B - Extraterrestial Exploration
Corporate Author National Aeronautics and Space Administration, Moffett Field, CA. Ames Research Center.
Document Type Conference proceedings
Title Note N/A
NTIS Issue Number 1401
Contract Number N/A

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