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Masses and Orbits of Extrasolar Planets: Preparation of Astrometric Observing Programs

Published online by Cambridge University Press:  19 September 2017

Andreas Quirrenbach
Affiliation:
University of California San Diego, Center for Astrophysics and Space Sciences, Mail Code 0424; La Jolla, CA, 92093-0424, USA
Sabine Prink
Affiliation:
University of California San Diego, Center for Astrophysics and Space Sciences, Mail Code 0424; La Jolla, CA, 92093-0424, USA
David Mitchell
Affiliation:
University of California San Diego, Center for Astrophysics and Space Sciences, Mail Code 0424; La Jolla, CA, 92093-0424, USA

Abstract

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Astrometry is the most powerful technique to determine dynamical masses and orbital parameters of extrasolar planets. The careful selection and characterization of reference stars is crucial for the success of any astrometric program. The best reference stars for NASA's Space Interferometry Mission (SIM) are distant K giants. The first sub-stellar companion to a K giant was recently detected serendipitously in a radial-velocity survey aimed at defining the SIM grid star strategy.

Type
Extrasolar Planets
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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