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Space astrometry in the Gaia era and beyond

Published online by Cambridge University Press:  17 July 2015

A.G.A. Brown
A.G.A. Brown*
Affiliation:
Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
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Abstract

In this contribution I provide some thoughts on the options for future space astrometry missions, with a focus on global astrometry. The next big step in space astrometry ideally would open up a new accuracy or wavelength domain (or a combination of both), although a future repeat of the Gaia mission is an option that should seriously be considered. I outline the scientific and technical challenges on the way to global sub-μas astrometry, and make some basic recommendations for achieving this goal.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 68: The Milky Way Unravelled by Gaia: GREAT Science from the Gaia Data Releases , 2014 , pp. 307 - 313
Copyright
© EAS, EDP Sciences, 2015

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