After decades of fast-paced technical advances, optical/infrared (O/IR) interferometry has
seen a revolution in recent years:▪ The GRAVITY instrument at the Very Large Telescope …

GRAVITY is a new instrument to coherently combine the light of the European Southern
Observatory Very Large Telescope Interferometer to form a telescope with an equivalent 130 …

Aims. We investigate the non-equilibrium chemistry of the inner winds of AGB stars for
different stages of stellar evolution, choosing a standard AGB stellar model and changing …

Context. Water (H 2 O) and the hydroxyl radical (OH) are major constituents of the envelope
of O-rich late-type stars. Transitions involving energy levels that are rotationally or …

Context. It has been proposed that convection in red supergiant (RSG) stars produces large-
scale granules causing observable surface inhomogeneities. This convection is also …

Aims. We model the chemistry of the inner wind of the carbon star IRC+ 10216 and consider
the effects of periodic shocks induced by the stellar pulsation on the gas to follow the non …

Context. Red supergiant (RSG) stars exhibit significant mass loss by means of a slow, dense
wind. They are often considered to be the more massive counterparts of Asymptotic Giant …

Context. Dust is efficiently produced by cool giant stars, but the condensation of inorganic
dust is poorly understood. Observations of key aluminum bearing molecules around evolved …

LITpro is a software for fitting models on data obtained from various stellar optical
interferometers, like the VLTI. As a baseline, for modeling the object, it provides a set of …

We present the results of long-baseline interferometric observations of the classical
Cepheids Polaris and δ Cep in the near infrared K'band (1.9-2.3 μm), using the FLUOR …