SÉGRANSAN , D.

For the nearby dwarf star α Cen B (K1 V), we present limb-darkening predictions from a 3D hydrodynamical radiative transfer model of its atmosphere. We first compared the results of this model to a standard Kurucz's atmosphere. Then we used both predictions to fit the new interferometric visibility measurements of α Cen B obtained with the...

For the nearby dwarf star α Cen B (K1 V), we present limb-darkening predictions from a 3D hydrodynamical radiative transfer model of its atmosphere. We first compared the results of this model to a standard Kurucz's atmosphere. Then we used both predictions to fit the new interferometric visibility measurements of α Cen B obtained with the...

Astron. and Astroph., 426, pp. 601-617 (2004)

Astronomy and Astrophysics, 502, pp. 695-703 (2009)

IAUC200, Direct Imaging of Exoplanets: Science & Techniques. Proceedings of the IAU Colloquium #200, eds. C. Aime and F. Vakili, Cambridge, UK: Cambridge University Press n/a, pp. 317-322 (2006)

Context. Among the thousands of exoplanets discovered to date, approximately a few hundred gas giants on short-period orbits are classified as 'lonely' and only a few are in a multi-planet system with a smaller companion on a close orbit. The processes that formed multi-planet systems hosting gas giants on close orbits are poorly understood,...