Matt Walker - Insert Tidal Here

Описание: Presented at the August 2021 Virtual Retreat. Matt Walker is an Associate Research Scientist located in Maine.

In this talk I promote my work and describe the various projects I am currently involved with in order to build new collaborations within the Planetary Science Institute. The talk describes my tidal heating models and methods, and the application to icy satellites such as Europa and Enceladus. I show how tides affect the thermal equilibrium of these bodies and present predictions of the temperature and heat flux profiles in the steady states found. I also describe the range of ice shells that can possibly exist at Europa and, in particular, claim that Europa's shell can be no more than 33.5km thick on average if conduction is the method of heat transfer. I go on to describe how these tools are used in various projects ranging from exploratory studies linking the thermal and orbital evolution of Europa to technical development investigations to assess the viability and survivability of tethered probes for future deployment during space missions to these ice shells. Finally, I describe the details of a recently submitted proposal which finds that impacts can trigger periods of enhanced tidal heating in these environments, and aims to link the relaxation of craters observed in Cassini data to these triggered heating events.

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