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GAIA: Composition, formation and evolution of the Galaxy
The GAIA astrometric mission has recently been approved as one of thenext two ``cornerstones'' of ESA's science programme, with a launch datetarget of not later than mid-2012. GAIA will provideExpand
The Exoplanet Handbook
1. Introduction 2. Radial velocities 3. Astrometry 4. Timing 5. Microlensing 6. Transits 7. Imaging 8. Host stars 9. Brown dwarfs and free-floating planets 10. Formation and evolution 11. InteriorsExpand
The Hipparcos catalogue
The principal observational characteristics of the Hipparcos Catalogue, and a summary of its main astrometric and photometric properties, are presented. Median astrometric standard errors (inExpand
We provide a revised assessment of the number of exoplanets that should be discovered by Gaia astrometry, extending previous studies to a broader range of spectral types, distances, and magnitudes.Expand
Astronomical Applications of Astrometry: Ten Years of Exploitation of the Hipparcos Satellite Data
1. The Hipparcos and Tycho catalogues 2. Derived catalogues and applications 3. Double and multiple stars 4. Photometry and variability 5. Luminosity calibration and distance scale 6. Open clusters,Expand
The Hipparcos input catalogue
GAIA: Global astrometric interferometer for astrophysics.
GAIA is a preliminary concept for an astrometric mission, recently recommended within the context of ESA's `Horizon 2000 Plus' long-term scientific programme. In its present form, the experiment isExpand
HD 98800: A unique stellar system of post-T tauri stars
HD 98800 is a system of four stars, and it has a large infrared excess that is thought to be due to a dust disk within the system. In this paper we present new astrometric observations made withExpand