SPHERE-IFS arm: a new concept of Nasmyth II generation instrumentation for ESO-VLT
| Autor: | V. De Caprio, Riccardo Claudi, Dino Mesa, Salvo Scuderi, Enrico Giro, Massimo Turatto, Jacopo Antichi, R. G. Gratton, Eric Stadler, Pietro Bruno, J. L. Beuzit, M. Tintori, Silvano Desidera, Enrico Cascone |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Physics
Integrated design business.industry Astrophysics::Instrumentation and Methods for Astrophysics Polarimetry Astronomy Polarimeter Astrophysics::Cosmology and Extragalactic Astrophysics Exoplanet Optics Integral field spectrograph Planet Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics business Adaptive optics Spectrograph |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.789420 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|