Appendix B: Photocentre position for the different RHD simulations

These figures are related to the article "Retrieving stellar parameters and dynamics of AGB stars with Gaia parallax measurements and CO5BOLD RHD simulations", published in A&A in 2024.

They display the temporal evolution of the photocentre displacement for different Asymptotic Giant Branch (AGB) stars computed with the 3D Radiative Hydrodynamics (RHD) code CO5BOLD of stellar convection and post-processed with the radiative code OPTIM3D.

For each figure, the AGB simulation name is displayed as well as the surface gravity log(g), the stellar radius R⋆ and the standard deviation σP in the top left. The dashed lines intersect at the geometric centre of the image. The red point indicates the average position of the photocentre and the red circle, its standard deviation σP. More details about these simulations can be found in the article.