Published December 14, 2020
| Version v1
Conference paper
Progress of the CHARA/SPICA project
Creators
- Pannetier, Cyril
- Mourard, Denis
- Bério, Philippe
- Cassaing, Frédéric
- Allouche, Fatmé
- Anugu, Narsireddy
- Bailet, Christophe
- ten Brummelaar, Theo
- Dejonghe, Julien
- Gies, Douglas
- Jocou, Laurent
- Kraus, Stefan
- Lacour, Sylvestre
- Lagarde, Stéphane
- Le Bouquin, Jean-Baptiste
- Lecron, Daniel
- Monnier, John
- Nardetto, Nicolas
- Patru, Fabien
- Perraut, Karine
- Petrov, Romain
- Sylvain, Rousseau
- Stee, Ph.
- Sturmann, Judit
- Sturmann, Laszlo
Contributors
Others:
- Observatoire de la Côte d'Azur ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)
- DOTA, ONERA, Université Paris Saclay [Châtillon] ; ONERA-Université Paris-Saclay
- Steward Observatory ; University of Arizona
- University of Michigan [Ann Arbor] ; University of Michigan System
- University of Exeter
- The CHARA Array
- Institut de Planétologie et d'Astrophysique de Grenoble (IPAG) ; Centre National d'Études Spatiales [Toulouse] (CNES)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ) ; Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE)-Université Grenoble Alpes (UGA)-Météo-France -Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE)-Université Grenoble Alpes (UGA)-Météo-France
- Observatoire de Paris ; Université Paris sciences et lettres (PSL)
Description
CHARA/SPICA (Stellar Parameters and Images with a Cophased Array) is currently being developed at Observatoire de la Cote d'Azur. It will be installed at the visible focus of the CHARA Array by the end of 2021. It has been designed to perform a large survey of fundamental stellar parameters with, in the possible cases, a detailed imaging of the surface or environment of stars. To reach the required precision and sensitivity, CHARA/SPICA combines a low spectral resolution mode R = 140 in the visible and single-mode fibers fed by the AO stages of CHARA. This setup generates additional needs before the interferometric combination: the compensation of atmospheric refraction and longitudinal dispersion, and the fringe stabilization. In this paper, we present the main features of the 6-telescopes fibered visible beam combiner (SPICA-VIS) together with the first laboratory and on-sky results of the fringe tracker (SPICA-FT). We describe also the new fringe-tracker simulator developed in parallel to SPICA-FT.
Abstract
International audienceAdditional details
Identifiers
- URL
- https://hal.archives-ouvertes.fr/hal-03182504
- URN
- urn:oai:HAL:hal-03182504v1