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Paper: On the CQE Phase Signature Feature in High-Resolution Spectro-Interferometry of Be Stars
Volume: 464, Circumstellar Dynamics at High Resolution
Page: 141
Authors: Faes, D. M.; Carciofi, A. C.; Rivinius, Th.; Štefl, S.; Baade, D.; Domiciano de Souza, A.
Abstract: We analyse a feature that is detectable at the differential phases of high-resolution spectro-interferometry of Be stars. The origin of this feature (dubbed CQE-PS, Central Quasi Emission Phase Signature) lies in the differential absorption of photospheric radiation by the circumstellar disk, which is spectroscopically detected as a CQE line profile in shell stars. This phenomenon has great diagnostic potential for Be star disks, revealing properties of these disks on the scale of a few stellar radii.
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