3D STELLAR CONVECTION


Solar Convection: 2D -> 3D


Animation1 Animation2

Results from a 3D numerical simulation of solar granulation:

  Movie of emergent continuum intensity (6.8 MB) 

  Movie of intensity + entropy + velocity (4.9 MB)

  Movie of intensity + entropy + velocity (3.8 MB)


A view of the solar granulation at 200 nm:

1) Model with      grey     radiative transfer,      chromosphere
2) Model with non-grey radiative transfer,      chromosphere
3) Model with non-grey radiative transfer, no chromosphere


A view of the solar chromosphere with ALMA:



Comparison of grey and non-grey model at 0.35mm, 1.0mm, 3.0mm, 9.0mm


Real solar granulation:

Speckle reconstructed continuum image (432 nm DOT)
1m Swedish Solar Telescope
3D numerical simulation
Movie of the solar granulation (9.5 MB) Courtesy P. Suetterlin


3D numerical simulations of stellar surface convection

       
Metal-poor Sun
G-giant
A-type star