Astrometry from space: GAIA and planet detection |
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| Authors: | S. Casertano M. G. Lattanzi M. A. C. Perryman A. Spagna |
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| Affiliation: | (1) ESA/Space Telescope Science Institute, 3700 San Martin Drive, 21218 Baltimore, MD, USA;(2) Osservatorio Astronomico di Torino, Strada Osservatorio 20, 10025 Pino Torinese (TO), Italy;(3) Astrophysics Division, ESTEC, 2200 AG Noordwijk, The Netherlands |
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| Abstract: | ![]()
The proposed baseline GAIA mission will be able to detect the astrometric signature of Jupiter-size planets around of the order of a million stars, using either global or narrow-angle astrometry. If the mission can realize the higher astrometric accuracy that photon statistics allows for bright stars, lower-mass planets (from Earth size to ten times larger) can be found around ten to a few hundred stars. |
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