Simulations of stellar convection, pulsation and semiconvection
Herbert J. Muthsam, Friedrich Kupka, Eva Mundprecht, Florian, Zaussinger, Hannes Grimm-Strele, Natalie Happenhofer
TL;DR
This paper presents simulations in stellar astrophysics covering turbulence in solar granulation, pulsation-convection interaction in Cepheids, and semiconvection modeling, using the ANTARES code.
Contribution
It introduces new 2D models of pulsation-convection interaction and semiconvection in stars, expanding understanding of stellar dynamics.
Findings
Turbulence properties in solar granulation are characterized.
First 2D model of Cepheid pulsation-convection interaction is developed.
Models of semiconvection relevant to stellar physics are reported.
Abstract
We report on modelling in stellar astrophysics with the ANTARES code. First, we describe properties of turbulence in solar granulation as seen in high-resolution calculations. Then, we turn to the first 2D model of pulsation-convection interaction in a cepheid. We discuss properties of the outer and the HEII ionization zone. Thirdly, we report on our work regarding models of semiconvection in the context of stellar physics.
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