Spectrally resolved interferometry of luminous and multiple stars with the GI2T

Nathalie D. Thureau; Olivier Chesneau; Philippe Berio; Daniel Bonneau; Denis Mourard; Philippe Stee; Farrokh Vakili; Christophe Verinaud

doi:10.1117/12.317124

24 July 1998 Spectrally resolved interferometry of luminous and multiple stars with the GI2T

Nathalie D. Thureau, Olivier Chesneau, Philippe Berio, Daniel Bonneau, Denis Mourard, Philippe Stee, Farrokh Vakili, Christophe Verinaud

Author Affiliations +

Proceedings Volume 3350, Astronomical Interferometry; (1998) https://doi.org/10.1117/12.317124
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

Abstract

This paper reviews the scientific results obtained with the Grand Interferometre a 2 Telescopes (the GI2T interferometer) from 1990 to 1996. During this epoch, accurate spectroscopy coupled to interferometry were achieved on luminous and multiple stars. Subtle structures in circumstellar environments such as: jets in the binary system β Lyrae, dumpiness in the wind of P Cygni, a rotating arm in ζTau have been discovered. Measurements of angular diameter variability versus time and wavelength provide fundamental parameters which constraint δ Cephei and γCas models. In addition to GI2T results, we develop in our group hydrodynamic and radiative transfert models dedicated to the interpretation of interferometry results. These models can directly constrain luminous star physics through their observable parameters.

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Nathalie D. Thureau, Olivier Chesneau, Philippe Berio, Daniel Bonneau, Denis Mourard, Philippe Stee, Farrokh Vakili, and Christophe Verinaud "Spectrally resolved interferometry of luminous and multiple stars with the GI2T", Proc. SPIE 3350, Astronomical Interferometry, (24 July 1998); https://doi.org/10.1117/12.317124

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