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A. Blazit
Researcher at Centre national de la recherche scientifique
Publications - 14
Citations - 332
A. Blazit is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Interferometry & Astronomical interferometer. The author has an hindex of 6, co-authored 14 publications receiving 324 citations.
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Journal ArticleDOI
VEGA: Visible spEctroGraph and polArimeter for the CHARA array: principle and performance
Denis Mourard,Jean-Michel Clausse,A. Marcotto,Karine Perraut,I. Tallon-Bosc,Ph. Berio,A. Blazit,D. Bonneau,S. Bosio,Yves Bresson,Olivier Chesneau,O. Delaa,François Hénault,Y. Hughes,Stephane Lagarde,G. Merlin,A. Roussel,Alain Spang,Ph. Stee,M. Tallon,P. Antonelli,R. Foy,Pierre Kervella,Romain Petrov,Éric Thiébaut,Farrokh Vakili,Harold A. McAlister,T. ten Brummelaar,J. Sturmann,Laszlo Sturmann,Nils H. Turner,Chris Farrington,P. J. Goldfinger +32 more
TL;DR: The spectro-polarimeter VEGA has been installed and successfully tested on the CHARA Array as mentioned in this paper, and the results depend on the observing conditions (seeing, spectral resolution, etc.).
Journal ArticleDOI
Spatio-spectral encoding of fringes in optical long-baseline interferometry - Example of the 3T and 4T recombining mode of VEGA/CHARA
Denis Mourard,Ph. Berio,Karine Perraut,Roxanne Ligi,A. Blazit,Jean-Michel Clausse,Nicolas Nardetto,Alain Spang,Isabelle Tallon-Bosc,D. Bonneau,Olivier Chesneau,O. Delaa,Florentin Millour,Ph. Stee,J.-B. Le Bouquin,T. ten Brummelaar,Chris Farrington,P. J. Goldfinger,John D. Monnier +18 more
TL;DR: In this article, a spatio-spectral encoding of fringes for the design of more compact beam combiners and for minimizing the number of pixels that must be read is presented.
Journal ArticleDOI
Dispersed fringe tracking with the multi-r(0) apertures of the Grand Interféromètre à 2 Télescopes.
Laurent Koechlin,Peter R. Lawson,Denis Mourard,A. Blazit,D. Bonneau,Frédéric Morand,Ph. Stee,Isabelle Tallon-Bosc,Farrokh Vakili +8 more
TL;DR: A new fringe tracker based on photon-counting detectors and real-time image processing has been implemented on the Grand Interféromètre à 2 Télescopes at the Observatoire de la Cote d'Azur.
Journal ArticleDOI
An investigation of the close environment of β Cephei with the VEGA/CHARA interferometer
Nicolas Nardetto,Denis Mourard,I. Tallon-Bosc,Michel Tallon,Philippe Berio,E. Chapellier,D. Bonneau,Olivier Chesneau,P. Mathias,Karine Perraut,Philippe Stee,A. Blazit,Jean-Michel Clausse,O. Delaa,A. Marcotto,Florentin Millour,A. Roussel,Alain Spang,H. A. McAlister,T. ten Brummelaar,J. Sturmann,L. Sturmann,Neal J. Turner,Chris Farrington,P. J. Goldfinger +24 more
TL;DR: In this article, the angular diameter of the star β Cep was determined by using the visible recombiner VEGA installed on the CHARA long-baseline interferometer at Mt. Wilson.
Journal ArticleDOI
The Carlina-type diluted telescope Stellar fringes on Deneb
H. Le Coroller,J. Dejonghe,Félicien Hespeels,Félicien Hespeels,L. Arnold,Torben Andersen,P. Deram,Davide Ricci,Davide Ricci,Ph. Berio,A. Blazit,J. M. Clausse,C. Guillaume,J. P. Meunier,X. Regal,R. Sottile +15 more
TL;DR: In this article, the authors presented the characteristics of these observations: quality of the guiding, signal-to-noise ratio reached, and possible improvements for a future system, and confirmed that the entire system conceptually has worked correctly.