This paper provides a general introduction to the problem of image reconstruction from
interferometric data. A simple model of the interferometric observables is given, and the …

Aims. This paper reports on H-band interferometric observations of Betelgeuse made at the
three-telescope interferometer IOTA. We image Betelgeuse and its asymmetries to …

Context. The red supergiant (RSG) Betelgeuse is an irregular variable star. Convection may
play an important role in understanding this variability. Interferometric observations can be …

This paper presents MIRA, a Multi-aperture Image Reconstruction Algorithm, which has
been specifically developed for image restoration from optical interferometric data. The …

Since the first multitelescope optical interferometer [1], considerable technological
improvements have been achieved. Optical (visible/infrared) interferometers are now widely …

Imaging large intensity gradients for rapid rotators, complicated spot patterns on rotating RS
CVn binaries, and diffuse disk emission around Young Stellar Objects requires advanced …

Context. With the advent of visible and infrared long-baseline interferometers with more than
two telescopes, both the size and the completeness of interferometric data sets have …

The number of publications of aperture-synthesis images based on optical long-baseline
interferometry measurements has recently increased due to easier access to visible and …

Two red supergiants (RSGs) of the Per OB1 association, RS Per and T Per, have been
observed in the H band using the Michigan Infra-Red Combiner (MIRC) instrument at the …

Aims. We undertook an H band interferometric examination of Arcturus, a star frequently
used as a spatial and spectral calibrator. Methods. Using the IOTA 3 telescope …