DFG project G:(GEPRIS)170172421

Matter under extreme conditions as relevant for planetary interior and dynamo models

CoordinatorProfessor Dr. Ronald Redmer
Grant period2010 - 2017
Funding bodyDeutsche Forschungsgemeinschaft
 DFG
IdentifierG:(GEPRIS)170172421

SPP 1488: Planetary Magnetism (PlanetMag)

Note: The goal of the project is to provide accurate input data for simulations of planetary dynamos and for models of planetary interiors. We will perform extensive ab initio molecular dynamics simulations based on finite-temperature density functional theory for matter under extreme conditions as relevant for the interiors of giant planets. The equation of state, the electrical and thermal conductivity, and the kinematic viscosity will be calculated for hydrogen and helium (Jupiter, Saturn) as well as for H2O, CH4, and NH3 (Uranus, Neptune). An important issue is the study of multi-component systems, starting from H-He mixtures, then allowing for additional components (C, N, O), and ultimately treating realistic planetary compositions (synthetic Neptune). The ab initio data will be used in the PlanetMag priority program (i) as input into numerical dynamo simulations, and (ii) to construct advanced interior models for solar giant planets. Thus, uncertainties of the equation of state, the electrical conductivity and viscosity in the fluid layers and in the core that are presently used in dynamo simulations can be reduced substantially. Combining structure and dynamo models in the PlanetMag priority program allows to develop interior models that are not only consistent with the gravity data but also with the magnetic field of the planet.
   

Recent Publications

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http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;
Measurement bias in self-heating x-ray free electron laser experiments from diffraction studies of phase transformation in titanium
Journal of applied physics 136(11), 115902 () [10.1063/5.0215908]  GO OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

All known publications ...
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 Record created 2023-02-02, last modified 2024-09-27



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