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AB Initio Simulations for Super-Earths

Objective

Since the discovery of the first exoplanet, a gaseous giant planet, two decades of an extensive planet hunt led to an amazing inventory of close-by planet systems. Among these planets a substantial number are slightly larger than Earth but are still expected to be rocky. No similar object exists in the solar system and little is known about them. One interesting aspect is to determine the habitability of these exotic planets and if life could develop there. It is therefore important to determine what is the structure of the deep interior of these planets and if it can generate a protecting magnetic field.
In the proposed project, the fellow plans to develop a set of state-of-the-art ab initio simulations of iron-nickel mixtures to study the properties of these materials at high pressure. These materials are likely to be dominant in the core of Super-Earth but it is unclear if the pressure-temperature conditions are compatible with a solid core surrounded by a liquid and conducting phase as expected to be favorable for magnetic field generation. The fellow will focus on the phase diagram of these mixtures up to 1 TPa. He will also explore the transport properties in order to better constrain the possible scenarios of convection and magnetic field generation. Based on these results, the fellow will build evolution models of Super-Earths to be compared to the discovered exoplanets.

Field of science

  • /natural sciences/physical sciences/astronomy/planetary science/planets/exoplanetology
  • /social sciences/social and economic geography/transport
  • /natural sciences/physical sciences/astronomy/planetary science/planets

Call for proposal

H2020-MSCA-IF-2016
See other projects for this call

Funding Scheme

MSCA-IF-EF-RI - RI – Reintegration panel

Coordinator

ECOLE NORMALE SUPERIEURE DE LYON
Address
Parvis Rene Descartes 15
69342 Lyon
France
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 185 076