Share Email Print
cover

Proceedings Paper

Polar-interferometry: what can be learnt from the IOTA/IONIC experiment
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We report the first near-IR polar-interferometric observations, performed at the IOTA array using its integrated optics combiner IONIC. Fringes have been obtained on calibration stars and resolved late-type giants. Optical modeling of the array and dedicated laboratory measures allowed us to confirm the good accuracy obtained on the calibrated polarized visibilities and closure phases. However, no evidences for polarimetric features at high angular resolution have been detected. The simulations and the results presented here open several perspectives for polar-interferometry, especially in the context of fibered, single-mode combiners.

Paper Details

Date Published: 28 July 2008
PDF: 11 pages
Proc. SPIE 7013, Optical and Infrared Interferometry, 70130F (28 July 2008); doi: 10.1117/12.786377
Show Author Affiliations
Jean-Baptiste Le Bouquin, European Southern Observatory (Chile)
Karine Rousselet-Perraut, Lab. d'Astrophysique de l'Observatoire de Grenoble (France)
Jean-Philippe Berger, Lab. d'Astrophysique de l'Observatoire de Grenoble (France)
Emilie Herwats, Lab. d'Astrophysique de l'Observatoire de Grenoble (France)
Myriam Benisty, Lab. d'Astrophysique de l'Observatoire de Grenoble (France)
Olivier Absil, Lab. d'Astrophysique de l'Observatoire de Grenoble (France)
Denis Defrere, Univ. de Liege (Belgium)
John Monnier, Univ. of Michigan (United States)
Wesley Traub, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 7013:
Optical and Infrared Interferometry
Markus Schöller; William C. Danchi; Françoise Delplancke, Editor(s)

© SPIE. Terms of Use
Back to Top