Structure of the solar photosphere studied from the radiation hydrodynamics code ANTARES.

摘要: The ANTARES radiation hydrodynamics code is capable of simulating the solar granulation in detail unequaled by direct observation. We introduce a state-of-the-art numerical tool to physics community and demonstrate its applicability model granulation. based on weighted essentially non-oscillatory finite volume method implementation local mesh refinement also turbulent fluids. While already provides promising insights into small-scale dynamical processes occurring quiet-Sun photosphere, it will soon be modeling latter scope magnetohydrodynamics. In this first preliminary study we focus vertical photospheric stratification examining 3-D photosphere with an evolution time much larger than timescales particular large horizontal extent corresponding [Formula: see text] surface smooth out spatial inhomogeneities separately for up- downflows. highly resolved Cartesian grid thereby covers upper convection zone adjacent photosphere. Correlation analysis, both two-point, suitable means probe structure identify several layers characteristic dynamics: thermal found reach some ten kilometers above surface, while convectively overshooting gas penetrates even higher low An wide transition layer separates convective from oscillatory