On the internal structure and dynamics of Titan

Grasset, O.; Sotin, C.; Deschamps, Frédéric

doi:10.1016/s0032-0633(00)00039-8

Cited by 166 publications

(130 citation statements)

References 59 publications

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“…(Grasset et al, 2000), its radar albedos and polarization ratios are much lower than other radar detected icy moons, possibly indicating that the sub-surface multiple scattering thought to be the cause of the very high values is not working nearly as effectively on Titan. This difference could be due to a contaminant in Titan's surface that increases the radar absorptivity, or structural differences such that there are fewer sub-surface scattering centers necessary for an effective multiple scattering effect.…”

Section: Observationsmentioning

confidence: 76%

Ground-based radar observations of Titan: 2000–2008

Black

Campbell

Carter

2011

Icarus

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Section: Observationsmentioning

confidence: 76%

Ground-based radar observations of Titan: 2000–2008

Black

Campbell

Carter

2011

Icarus

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“…Titan's orbital eccentricity is remarkably high, suggesting a relatively recent origin and/or moderate tidal heating over time (Sohl et al 1995, Tobie et al 2005. Finally, Titan is likely to harbour a cold, extended internal liquid reservoir, similar to those first proposed for the large icy satellites of Jupiter, but more enriched in ammonia (Grasset et al 2000, Sohl et al 2003, Tobie et al 2005, Grindrod et al 2008.…”

Section: Saturnian Satellitesmentioning

confidence: 63%

Interior Models of Icy Satellites and Prospects of Investigation

Sohl

2009

Proc. IAU

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Abstract. The state of knowledge about the structure and composition of icy satellite interiors has been significantly extended by combining direct measurements from spacecraft, laboratory experiments, and theoretical modeling. Interior models of icy bodies will certainly benefit from future missions to the outer solar system, providing new and improved constraints on the surface chemistry, bulk composition and degree of internal differentiation, possible heterogeneities in radial mass distribution, the presence and extent of liquid reservoirs, and the amount of tidal heating for each target body. Here we summarize geophysical constraints on the interior structure and composition of selected Jovian and Saturnian icy satellites and investigate conditions under which potentially habitable liquid water reservoirs could be maintained. Future geophysical exploration which includes gravitational and magnetic field sounding from low-altitude orbit and close flyby, combined with altimetry data and in-situ monitoring of tidally-induced surface distortion and time-variable magnetic fields, would impose important constraints on the interiors of outer planet satellites.

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“…Method C also leads naturally to the concept that one may use the same "hammer" to drive other metals, especially if they have approximately the same density as the original one. For example, 18 carat gold (75% Au, 25% Cu by volume) has a density very close to that of tantalum, 16.67 g/cm 3 .…”

Section: Discussionmentioning

confidence: 99%

Design of a Rayleigh–Taylor experiment to measure strength at high pressures

Mikaelian

2010

Physics of Plasmas

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We present a design to measure the strength of a metal at very high pressures using the Rayleigh-Taylor instability. The target consists of a metal foil behind a tamper and an ablator driven by soft x-rays generated in a hohlraum at the Nation Ignition Facility (NIF) or Laser MegaJoule (LMJ). Since ignition capsules and strength targets both call for quasiadiabatic drives, we use the early, 0-16 ns, part of the ignition pulse to drive an almost-10-Mb strength experiment. We also discuss variations on how initial perturbations may be placed at the metal/tamper interface, resulting in a high-pressure microindentation technique. We illustrate the time-evolution of perturbations under various assumptions concerning tantalum strength. PACS numbers 47.20.Ma

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On the internal structure and dynamics of Titan

Cited by 166 publications

References 59 publications

Ground-based radar observations of Titan: 2000–2008

Ground-based radar observations of Titan: 2000–2008

Interior Models of Icy Satellites and Prospects of Investigation

Design of a Rayleigh–Taylor experiment to measure strength at high pressures

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