Spectroscopy, Photometry and Micro-arcsec Astrometry of Binaries with the GAIA Space Mission and with the RAVE Experiment

@article{Zwitter2003SpectroscopyPA,
  title={Spectroscopy, Photometry and Micro-arcsec Astrometry of Binaries with the GAIA Space Mission and with the RAVE Experiment},
  author={Toma{\vz} Zwitter and Ulisse Munari Univ. of Ljubljana and Department of Engineering Physics and Ljubljana and Slovenia. and Osservatorio Astronomico di Padova and Sede di Asiago and Asiago and Italy.},
  journal={arXiv: Astrophysics},
  year={2003}
}
GAIA astrometric mission of ESA will be very efficient in discovering binary and multiple stars with any orbital period, from minutes to millions of years. Main parameters of the revised mission design are presented. Next we estimate the fraction of binary stars discovered by means of astrometry, photometry and on-board spectroscopy. Finally we summarize observations that confirm the ability to measure physical parameters like masses, radii and spectroscopic distance from GAIA data alone. GAIA… 
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