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Proceedings Paper

The SPHERE IFS at work
Author(s): R. Claudi; E. Giro; M. Turatto; A. Baruffolo; P. Bruno; E. Cascone; V. DeCaprio; S. Desidera; R. Dorn; D. Fantinel; G. Finger; R. Gratton; L. Lessio; J. L. Lizon; A. L. Maire; D. Mesa; B. Salasnich; S. Scuderi; A. Zurlo; K. Dohlen; J. L. Beuzit; D. Mouillet; P. Puget; Francois Wildi; N. Hubin; M. Kasper
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Paper Abstract

SPHERE is an extrasolar planet imager whose goal is to detect giant extrasolar planets in the vicinity of bright stars and to characterize them through spectroscopic and polarimetric observations. It is a complete system with a core made of an extreme-Adaptive Optics (AO) turbulence correction, a pupil tracker and NIR and Visible coronagraph devices. At its back end, a differential dual imaging camera and an integral field spectrograph (IFS) work in the Near Infrared (NIR) (0.95 ≤λ≤2.32 μm) and a high resolution polarization camera covers the visible (0.6 ≤λ≤0.9 μm). The IFS is a low resolution spectrograph (R~50) operates in the near IR (0.95≤λ≤1.6 μm), an ideal wavelength range for the detection of planetary features, over a field of view of about 1.7 x 1.7 square arcsecs. Form spectra it is possible to reconstruct monochromatic images with high contrast (10-7) and high spatial resolution, well inside the star PSF. In this paper we describe the IFS, its calibration and the results of several performance which IFS underwent. Furthermore, using the IFS characteristics we give a forecast on the planetary detection rate.

Paper Details

Date Published: 8 July 2014
PDF: 13 pages
Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91471L (8 July 2014); doi: 10.1117/12.2055087
Show Author Affiliations
R. Claudi, INAF - Osservatorio Astronomico di Padova (Italy)
E. Giro, INAF - Osservatorio Astronomico di Padova (Italy)
M. Turatto, INAF - Osservatorio Astronomico di Padova (Italy)
A. Baruffolo, INAF - Osservatorio Astronomico di Padova (Italy)
P. Bruno, INAF - Osservatorio Astrofisico di Catania (Italy)
E. Cascone, Osservatorio Astronomico di Capodimonte (Italy)
V. DeCaprio, INAF - Osservatorio Astronomico di Capodimonte (Italy)
S. Desidera, INAF - Osservatorio Astronomico di Padova (Italy)
R. Dorn, European Southern Observatory (Germany)
D. Fantinel, INAF - Osservatorio Astronomico di Padova (Italy)
G. Finger, European Southern Observatory (Germany)
R. Gratton, INAF - Osservatorio Astronomico di Padova (Italy)
L. Lessio, INAF - Osservatorio Astronomico di Padova (Italy)
J. L. Lizon, European Southern Observatory (Germany)
A. L. Maire, INAF - Osservatorio Astronomico di Padova (Italy)
D. Mesa, INAF - Osservatorio Astronomico di Padova (Italy)
B. Salasnich, INAF - Osservatorio Astronomico di Padova (Italy)
S. Scuderi, INAF - Osservatorio Astrofisico di Catania (Italy)
A. Zurlo, INAF - Osservatorio Astronomico di Padova (Italy)
K. Dohlen, Lab. d'Astrophysique de Marseille (France)
J. L. Beuzit, Institut de Planétologie et d’Astrophysique de Grenoble (France)
D. Mouillet, Institut de Planétologie et d’Astrophysique de Grenoble (France)
P. Puget, Institut de Planétologie et d’Astrophysique de Grenoble (France)
Francois Wildi, Observatoire de Genève (Switzerland)
N. Hubin, European Southern Observatory (Germany)
M. Kasper, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 9147:
Ground-based and Airborne Instrumentation for Astronomy V
Suzanne K. Ramsay; Ian S. McLean; Hideki Takami, Editor(s)

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