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Astrometric exoplanet surveys in practice

Published online by Cambridge University Press:  27 October 2016

Johannes Sahlmann*
Affiliation:
European Space Agency, ESAC, P.O. Box 78, Villanueva de la Cañada, 28691 Madrid, Spain European Space Agency, STScI, 3700 San Martin Drive, Baltimore, MD 21218, USA email: [email protected]
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Abstract

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Conversely to the transit photometry and radial velocity methods, the astrometric discovery of exoplanets is still limited by the sensitivity of available instruments. Ground-based surveys are now sensitive to giant planets in orbit around nearby low-mass stars and brown dwarfs. In 2014, ESA's Gaia mission began its survey, which is expected to discover thousands of giant exoplanets by detecting the astrometric orbital motions of the host stars.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2016 

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