Two models of parameterized convection for medium-sized icy satellites of Saturn |
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| Authors: | Leszek Czechowski |
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| Institution: | (1) Institute of Geophysics, Warsaw University, ul. Pasteura 7, 02-093 Warszawa, Poland |
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| Abstract: | A parameterized theory of convection is developed for 6 medium-size icy satellites (MIS) of Saturn. It is an extension of
the research concerning the Mimas-Enceladus paradox. Two parameterizations of dimensionless temperature are used in the model
and a new constrain for tidal heating is included. It is found that the basic results of the model are independent of particulars
of the parameterizations. The new constrain considerably reduces the space of possible values of the material parameter of
satellites but the two basic conclusions are unchanged, i.e.: (a) the thermal state of the considered MIS can be explained
in the frame of the uniform model that includes radiogenic and tidal heating; (b) the theory indicates that endogenic activity
of some MIS was (or is) a result of a specific ‘excited’, high temperature state of a given satellite. The theory could be
also used for estimation of tidal heating. |
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| Keywords: | medium-size satellites tides thermal evolution tectonics volcanism parameterized theory of convection |
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