The case for an ocean-bearing Mimas from tidal heating analysis
نویسندگان
چکیده
Cassini measurements of Mimas' physical libration can be explained by either a non-hydrostatic core or global, liquid water ocean beneath 24–31 km thick ice shell. An within Mimas would surprising, given the lack comparable geologic activity to that observed on other ocean-bearing moons like Europa and Enceladus, thus has important implications for prevalence identification worlds. Here, we calculate tidal heating generated an determine shell thicknesses result. Our model accounts caused eccentricity uses depth-dependent rheological profile in ice. We find ability host over depends rheology ice, surface temperature, basal heat flux. that, using most reasonable assumptions, have suggested today. report corresponding average fluxes these cases discuss observational data could further assess whether is, indeed, present-day world.
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ژورنال
عنوان ژورنال: Icarus
سال: 2022
ISSN: ['0019-1035', '1090-2643']
DOI: https://doi.org/10.1016/j.icarus.2021.114872