Potential of the VLTI for linking stellar frames to ICRF |
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| Authors: | Gérard Daigne Patrick Charlot Christine Ducourant Jean-François Lestrade |
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| Institution: | (1) CNRS, 2 rue de l'Observatoire, Observatoire Aquitain des Sciences de l'Univers –, F-33270 Floirac, France;(2) Observatoire de Paris – CNRS, 77 Ave. Denfert-rochereau, F-75014 Paris, France |
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| Abstract: | The question of positioning the optical counterparts of the ICRF quasars is outlined in the perspective of future space astrometry
missions, which ultimately will bring a new realization of the ICRS in the optical range. Ground-based interferometry with
a dual-field observing mode (PRIMA/VLTI),together with the missions DIVA and FAME, will have a key role in building an extragalactic
reference frame in the optical/near-IR range with about the same accuracy as that of the present (VLBI) primary frame.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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| Keywords: | astrometry reference frames interferometry atmospheric effects |
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