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Parallax programs at the Bordeaux Observatory at sub-mas level accuracy

Published online by Cambridge University Press:  01 October 2007

C. Ducourant ,
R. Teixeira ,
J.-F. le Campion  and
G. Chauvin
C. Ducourant
Affiliation:
Observatoire Aquitain des Sciences de l'Univers, CNRS-UMR 5804, BP 89, 33270 Floirac, France. email: [email protected], [email protected]
R. Teixeira
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226 - Cidade Universitária, 05508-900 São Paulo - SP, Brasil. email: [email protected]
J.-F. le Campion
Affiliation:
Observatoire Aquitain des Sciences de l'Univers, CNRS-UMR 5804, BP 89, 33270 Floirac, France. email: [email protected], [email protected]
G. Chauvin
Affiliation:
Laboratoire d'Astrophysique Observatoire de Grenoble BP 53 F-38041 GRENOBLE Cdex 9, France. email: [email protected]
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Abstract

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We present ongoing parallax programs developed at the Bordeaux Observatory several years ago. We describe the necessary steps leading to sub-milliarcsecond accuracy of calculated parallax. We show the importance of global methods for accurate parallax determination.

Keywords

astrometrystars: distancessolar neighborhoodmethods: data analysis
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 98 - 99
Copyright
Copyright © International Astronomical Union 2008

References

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Hawkins, M. R. S., Ducourant, C., Rapaport, M., & Jones, H. R. A., 1998, MNRAS, 294, 505.Google Scholar