SIMBAD references

2004A&A...413..771M - Astronomy and Astrophysics, volume 413, 771-777 (2004/1-2)

Formalism and quality of a proper motion link with extragalactic objects for astrometric satellite missions.

METZ M. and GEFFERT M.

Abstract (from CDS):

The accuracy of the link of the proper motion system of astrometric satellite missions like AMEX and GAIA is discussed. Monte-Carlo methods were used to simulate catalogues of positions and proper motions of quasars and galaxies to test the link. The main conclusion is, that future satellite missions like GAIA may be ``self-calibrated'' by their measurements of QSOs, while additional measurements from radio stars or HST-data are needed to calibrate the less deep reaching astrometric satellite missions of AMEX type.

Abstract Copyright: ∼

Journal keyword(s): astrometry - reference systems - quasars

VizieR on-line data: <Available at CDS (J/A+A/413/771): table.dat>

Simbad objects: 184

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