Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.7014e.113d&link_type=abstract
Ground-based and Airborne Instrumentation for Astronomy II. Edited by McLean, Ian S.; Casali, Mark M. Proceedings of the SPI
Astronomy and Astrophysics
Astronomy
Scientific paper
Direct detection and spectral characterization of Extrasolar Planets is one of the most exciting but also one of the most challenging areas in modern astronomy. For the second-generation instrumentation on the VLT, ESO has supported the study and the design of instrument, called SPHERE (Spectro-Polarimetric High-contrast Exoplanet Research). SPHERE includes a powerful extreme adaptive optics system, various coronagraphs, an infrared differential imaging camera (IRDIS), an infrared Integral Field Spectrograph (IFS) and a visible differential polarimeter (ZIMPOL). IFS is a very low resolution spectrograph (R~50) which works in the near IR (0.95-1.7 microns), an ideal wavelength range for the ground based detection of planetary features. The IFS requirements have been met via an innovative integrated design merging passive stiffness and active control to obtain a light, accessible and functional assembly. This paper gives a description of its cryogenic and mechatronic integrated design.
Antichi Jacopo
Beuzit Jean Luc
Bruno Patrick
Cascone Enrico
Claudi Riccardo
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