Interferometry of α Eri (Domiciano de Souza+, 2012)

We used the AMBER focal instrument at ESO-VLTI in its high spectral resolution mode to record interferometric data on the fast rotator Achernar. Differential phases centered on the hydrogen Brγ line (K band) were obtained during four almost consecutive nights with a continuous Earth-rotation synthesis during ~5h/night, corresponding to ~60° position angle coverage per baseline. These observations were interpreted with our numerical code dedicated to long-baseline interferometry of rotating stars. (2 data files).