Context. Optical long-baseline interferometry is moving a crucial step forward with the
advent of general-user scientific instruments that equip large aperture and hectometric …

Context. The signal processing of multi-aperture monomode interferometers using multiaxial
recombination, such as AMBER/VLTI, makes use of the modeling of the fringes in the image …

Context. Classical Be stars are hot non-supergiant stars surrounded by a gaseous
circumstellar disk that is responsible for the observed infrared-excess and emission lines …

Context. Circumstellar discs are essential for the formation of high mass stars, while
multiplicity, and in particular binarity, appears to be an inevitable outcome, as the vast …

In the opening chapters of this volume we have been introduced to some of the theoretical
bases of ground-based optical/IR interferometry. In this paper, we take a look at the subject …

This book deals with the fundamentals of stellar interferometry with emphasis on aperture
synthesis using sparse array of telescopes particularly at optical/IR wavelengths, the origin …

Aims. We study the AU-scale circumstellar environment of the unclassified B [e] star V921
Sco in the near-infrared. For interpreting the observations, we employ temperature-gradient …

MATISSE (Multi AperTure mid-Infrared SpectroScopic Experiment) is the future spectro-
interferometer of the European Southern Observatory VLT operating in the spectral bands L …

Context. IRC+ 10420 is a massive evolved star belonging to the group of yellow hypergiants.
Currently, this star is rapidly evolving through the Hertzprung-Russell diagram, crossing the …

Context. HD 110432 was classified as a “γ Cas X-ray analog” since it has similar peculiar X-
ray and optical characteristics, ie a hard-thermal X-ray variable emission and an optical …