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Proceedings Paper

Spectrally resolved interferometry of luminous and multiple stars with the GI2T
Author(s): Nathalie D. Thureau; Olivier Chesneau; Philippe Berio; Daniel Bonneau; Denis Mourard; Philippe Stee; Farrokh Vakili; Christophe Verinaud
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Paper 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.

Paper Details

Date Published: 24 July 1998
PDF: 12 pages
Proc. SPIE 3350, Astronomical Interferometry, (24 July 1998); doi: 10.1117/12.317124
Show Author Affiliations
Nathalie D. Thureau, Observatoire de la Cote d'Azur (France)
Olivier Chesneau, Observatoire de la Cote d'Azur (France)
Philippe Berio, Observatoire de la Cote d'Azur (France)
Daniel Bonneau, Observatoire de la Cote d'Azur (France)
Denis Mourard, Observatoire de la Cote d'Azur (France)
Philippe Stee, Observatoire de la Cote d'Azur (France)
Farrokh Vakili, Observatoire de la Cote d'Azur (France)
Christophe Verinaud, Observatoire de la Cote d'Azur (France)

Published in SPIE Proceedings Vol. 3350:
Astronomical Interferometry
Robert D. Reasenberg, Editor(s)

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