Radiative hydrodynamic simulations of red supergiant stars. III. Spectro-photocentric variability, photometric variability, and consequences on Gaia measurements

A. Chiavassa , E. Pasquato , A. Jorissen , S. Sacuto , C. Babusiaux , B. Freytag , H.G. Ludwig , P. Cruzalèbes (1) , Y. Rabbia (1) , A. Spang (1) , O. Chesneau (1)

1 FIZEAU - Laboratoire Hippolyte Fizeau

Domaines: Planète et Univers [physics]

A. Chiavassa, E. Pasquato, A. Jorissen, S. Sacuto, C. Babusiaux, et al.. Radiative hydrodynamic simulations of red supergiant stars. III. Spectro-photocentric variability, photometric variability, and consequences on Gaia measurements. Astronomy and Astrophysics - A&A, 2011, 528, pp.A120. ⟨10.1051/0004-6361/201015768⟩. ⟨hal-00722148⟩