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A. M. Gontier
Researcher at Centre national de la recherche scientifique
Publications - 6
Citations - 842
A. M. Gontier is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: International Celestial Reference Frame & Very-long-baseline interferometry. The author has an hindex of 4, co-authored 6 publications receiving 799 citations.
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Journal ArticleDOI
The International Celestial Reference Frame as Realized by Very Long Baseline Interferometry
Chopo Ma,E. F. Arias,T. M. Eubanks,A. L. Fey,A. M. Gontier,Christopher S. Jacobs,Ojars J. Sovers,B. A. Archinal,Patrick Charlot +8 more
TL;DR: A quasi-inertial reference frame is defined based on the radio positions of 212 extragalactic sources distributed over the entire sky as discussed by the authors, which is better than about 1 mas in both coordinates.
Journal ArticleDOI
Stability of the extragalactic VLBI reference frame
TL;DR: In this article, the authors investigate the systematic and random behaviours in time series of individual determinations of coordinates for several hundred sources over 1987-1999 and propose new criteria for the qualication of sources in a future revision of the ICRF.
The international celestial reference frame realized by vlbi
Journal Article
Spatial variability of compact extragalactic radiosources
TL;DR: In this article, a subset of 16 objects with a dense observational history over 1988-1999 are studied in order to derive informa- tion on the geometric and statistical properties of their emission at centimetric wavelength.