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Titan's damp ground: Constraints on Titan surface thermal properties from the temperature evolution of the Huygens GCMS inlet
Zarnecki, John C.; Lorenz, Ralph D.; Niemann, Hasso B. +2 more
A simple thermal model is developed to determine the temperature history of the inlet tube of the Huygens probe gas chromatograph mass spectrometer (GCMS) after its fortuitous emplacement on the surface of Saturn's moon Titan. The model parameters are adjusted to match the recorded temperature history of a nearby heater, taking into account heat l…
Ages of rampart craters in equatorial regions on Mars: Implications for the past and present distribution of ground ice
Jaumann, R.; Neukum, G.; Hauber, E. +3 more
We are testing the idea of Squyres et al. (1992) that rampart craters on Mars may have formed over a significant time period and therefore the onset diameter (minimum diameter of a rampart crater) only reflects the ground ice depth at a given time. We measured crater size frequencies on the layered ejecta of rampart craters in three equatorial reg…