Origins Chalk Talk "A Simple Analytical Model for Rocky Planet Interior" Li Zeng (EPS- Jacobsen Group)
Date and Time
December 3, 2015
09:00AM - 09:00AM EST
Location
Naito Laboratory, Room 205, 12 Oxford St, Cambridge
Abstract:
From PREM (Dziewonski & Anderson 1981), I deduce a simple analytical model for rocky planets. Tested with PREM-extrapolated numerical models (Zeng, Sasselov, Jacobsen 2015), this model can be applied to any two-layer (iron-silicate) rocky exoplanets with CMF (core mass fraction) range 0.2∼0.35 and mass range of 0.1~20 M⊕. This analytical model yields several handy and powerful formulae for the interior of such a planet. They can provide physical insights into the planet structure.