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Matthieu Palate, Gregor Rauw, Eric Gosset & Yaël Nazé

Massive binaries as seen with Gaia

(Volume 80 - Année 2011)
Article
Open Access

Abstract

Gaia, ESA’s forthcoming astrometric observatory, will observe a billion stars of our Galaxy, among which thousands of high-mass stars. In this contribution, we study the capabilities of Gaia’s spectrometer (RVS) in the context of massive stars, especially the detectability of lower-mass companions to O-type stars. This preliminary study enables us to estimate to what extent Gaia will constrain the distribution of the physical and orbital parameters of massive binaries (luminosity, period, mass ratio, eccentricity...).

To cite this article

Matthieu Palate, Gregor Rauw, Eric Gosset & Yaël Nazé, «Massive binaries as seen with Gaia», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 80 - Année 2011, 504 - 508 URL : http://popups.ulg.be/0037-9565/index.php?id=2995.

About: Matthieu Palate

Institut d’Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium

About: Gregor Rauw

Institut d’Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium

About: Eric Gosset

Institut d’Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium

About: Yaël Nazé

Institut d’Astrophysique et de Géophysique, Université de Liège, 4000 Liège, Belgium