| Issue |
EAS Publications Series
Volume 67-68, 2014
The Milky Way Unravelled by Gaia: GREAT Science from the Gaia Data Releases
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|---|---|---|
| Page(s) | 101 - 104 | |
| Section | Planetary Systems: Words Near and Far | |
| DOI | https://doi.org/10.1051/eas/1567017 | |
| Published online | 17 July 2015 | |
N.A. Walton, F. Figueras, L. Balaguer-Núñez and C. Soubiran (eds)
EAS Publications Series, 67–68 (2014) 101-104
Exoplanets: Gaia and the importance of ground based spectroscopy follow-up
1 Instituto de Astrofísica e Ciência do Espaço, Universidade do Porto, Rua das Estrelas, 4150-762 Porto, Portugal
2 Departamento de Física e Astronomia, Faculdade de Ciências, Universidade do Porto, Portugal
3 INAF, Osservatorio Astrofisico di Torino, 10025 Pino Torinese, Italy
e-mail: Lisa.Benamati@astro.up.pt
The search for extrasolar planets has developed rapidly and, today, more than 1700 planets have been found orbiting stars. Thanks to Gaia, we will collect high-accuracy astrometric orbits of thousands of new low-mass celestial objects, such as extra-solar planets and brown dwarfs. These measurements in combination with spectroscopy and with present day and future extrasolar planet search programs (like HARPS, ESPRESSO) will have a crucial contribution to several aspects of planetary astrophysics (formation theories, dynamical evolution, etc.). Moreover, Gaia will have a strong contribution on the stellar chemical and kinematic characterisation studies. In this paper we present a short overview of the importance of Gaia in the context of exoplanet research. As preparatory work for Gaia, we will then present a study where we derived stellar parameters for a sample of field giant stars.
© EAS, EDP Sciences, 2015