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- Spectroscopic binaries as observed by the future Gaia space mission
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Spectroscopic binaries as observed by the future Gaia space mission
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Annexes
Abstract
The future Gaia satellite will observe a large number of stars through its three main channels: astrometric, photometric and, for the brightest stars, spectroscopic. The satellite is equipped with the RVS spectrograph, which will provide medium-resolution spectra over a small wavelength range. These spectra should allow us to identify stars exhibiting a composite spectrum, either because of a chance alignment or a true binarity. We discuss the various aspects related to the data treatment of the binary candidates and describe the algorithms that are intended to be included in the processing pipeline.
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About: Yassine Damerdji
Institut d’Astrophysique et de Géophysique, Université de Liège, Belgium
About: Ludovic Delchambre
Institut d’Astrophysique et de Géophysique, Université de Liège, Belgium
About: Thierry Morel
Institut d’Astrophysique et de Géophysique, Université de Liège, Belgium
About: Eric Gosset
Institut d’Astrophysique et de Géophysique, Université de Liège, Belgium
About: Gregor Rauw
Institut d’Astrophysique et de Géophysique, Université de Liège, Belgium