For the main mirror substrate, the Aluminum 6061 alloy has been chosen as baseline material after a trade-off. The large size of the mirror however (0.6 square meters) presents specific production challenges concerning opto-mechanical stability in cryogenic applications.
Atmospheric Remote-Sensing Infrared Exoplanet Large Survey (ARIEL) is the M4 ESA mission to launch in 2028. ARIEL is based on a 1 m class telescope optimized for spectroscopy in the waveband between 1.95 mu m and 7.8 mu m (main instrument), operating in cryogenic conditions in the range 50 - 60 K.
The primary mirror of the ARIEL mission: study of thermal, figuring and finishing treatments and optical characterization of Al 6061 samples mirrors
Chioetto Paolo;Da Deppo Vania;Zuppella Paola;
2019
Abstract
Atmospheric Remote-Sensing Infrared Exoplanet Large Survey (ARIEL) is the M4 ESA mission to launch in 2028. ARIEL is based on a 1 m class telescope optimized for spectroscopy in the waveband between 1.95 mu m and 7.8 mu m (main instrument), operating in cryogenic conditions in the range 50 - 60 K.File in questo prodotto:
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