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IRDIS, the dual-band imager camera of SPHERE: testing the performances in laboratory

Published online by Cambridge University Press:  06 January 2014

A. Zurlo ,
A. Vigan ,
C. Moutou ,
D. Mesa ,
R. Gratton ,
M. Langlois ,
J.-L. Beuzit ,
A. Costille ,
S. Desidera  and
K. Dolhen
...Show all authors
A. Zurlo
Affiliation:
Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, 13388, Marseille, France
A. Vigan
Affiliation:
Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, 13388, Marseille, France
C. Moutou
Affiliation:
Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, 13388, Marseille, France
D. Mesa
Affiliation:
INAF - Osservatorio Astronomico di Padova - Vicolo dell'Osservatorio 5, I-35122, Padova, Italy
R. Gratton
Affiliation:
INAF - Osservatorio Astronomico di Padova - Vicolo dell'Osservatorio 5, I-35122, Padova, Italy
M. Langlois
Affiliation:
CRAL, UMR 5574, CNRS, Université Lyon 1, 9 avenue Charles André, 69561 Saint Genis Laval Cedex, France
J.-L. Beuzit
Affiliation:
Institut de Planetologie et d'Astrophysique de Grenoble, UJF, CNRS, 414 rue de la piscine, 38400, Saint Martin d'Heres, France
A. Costille
Affiliation:
Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, 13388, Marseille, France
S. Desidera
Affiliation:
INAF - Osservatorio Astronomico di Padova - Vicolo dell'Osservatorio 5, I-35122, Padova, Italy
K. Dolhen
Affiliation:
Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, 13388, Marseille, France
C. Gry
Affiliation:
Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, 13388, Marseille, France
F. Madec
Affiliation:
Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, 13388, Marseille, France
D. Le Mignant
Affiliation:
Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, 13388, Marseille, France
D. Mouillet
Affiliation:
Institut de Planetologie et d'Astrophysique de Grenoble, UJF, CNRS, 414 rue de la piscine, 38400, Saint Martin d'Heres, France
J.-F. Sauvage
Affiliation:
Institut de Planetologie et d'Astrophysique de Grenoble, UJF, CNRS, 414 rue de la piscine, 38400, Saint Martin d'Heres, France
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Abstract

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Next year the second generation instrument SPHERE will begin science operations at the Very Large Telecope (ESO). This instrument will be dedicated to the search for exoplanets through the direct imaging techniques, with the new generation extreme adaptive optics. In this poster, we present the performances of one of the focal instruments, the Infra-Red Dual-beam Imaging and Spectroscopy (IRDIS). All the results have been obtained with tests in laboratory, simulating the observing conditions in Paranal. We tested several configurations using the sub-system Integral Field Spectrograph (IFS) in parallel and simulating long coronographic exposures on a star, calibrating instrumental ghosts, checking the performance of the adaptive optics system and reducing data with the consortium pipeline. The contrast one can reach with IRDIS is of the order of 10−6 at 0.5 arcsec separation from the central star.

Keywords

Direct imaginginstrumentation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S299: Exploring the Formation and Evolution of Planetary Systems , June 2013 , pp. 78 - 79
Copyright
Copyright © International Astronomical Union 2013 

References

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Vigan, A., Moutou, C., Langlois, M., et al. 2003, Monthly Notices of the Royal Astronomical Society, 407, 71CrossRefGoogle Scholar