TY  - GEN
N1  - This version is the version of record. For information on re-use, please refer to the publisher?s terms and conditions.
PB  - SPIE
A1  - Pace, Emanuele
A1  - Adler Abreu, Manuel
A1  - Alonso, Gustavo
A1  - Barroqueiro, Bruno
A1  - Bocchieri, Andrea
A1  - Brienza, Daniele
A1  - Brucalassi, Anna
A1  - Chioetto, Paolo
A1  - Compostizo, Carlos
A1  - Cortecchia, Fausto
A1  - D'Anca, Fabio
A1  - Del Vecchio, Ciro
A1  - Diolaiti, emiliano
A1  - Eccleston, Paul
A1  - Fahmy, Salma
A1  - Fernandes, José
A1  - Fernandez Soler, Alejandro
A1  - Ferruzzi, Debora
A1  - Focardi, Mauro
A1  - Freitas, Sara
A1  - Galy, Camille
A1  - Garcia Moreno, Laura
A1  - Garcia Perez, Andres
A1  - Gottini, Daniele
A1  - Guerriero, Elisa
A1  - Halain, Jean-Philippe
A1  - Hellin, Marie-Laure
A1  - Jollet, Delphine
A1  - Lilli, Riccardo
A1  - Malaguti, Giuseppe
A1  - Martě, Laura
A1  - Mazzoli, Alexandra
A1  - Micela, Giuseppina
A1  - Morgante, Gianluca
A1  - Naponiello, Luca
A1  - Noce, Vladimiro
A1  - Pascale, Enzo
A1  - Perez Alvarez, Javier
A1  - Piazzolla, Raffaele
A1  - Picchi, Paolo
A1  - Preti, Giampaolo
A1  - Roose, Stephane
A1  - Salatti, Mario
A1  - Salvignol, Jean-Christophe
A1  - Scippa, Antonio
A1  - Serre, Christophe
A1  - Terenzi, Luca
A1  - Tinetti, Giovanna
A1  - Di Vignano, Elisabetta Tommasi
A1  - Tozzi, Andrea
A1  - Vandenbussche, Bart
A1  - Zuppella, Paola
AV  - public
Y1  - 2024/08/23/
CY  - Bellingham, WA,  USA
TI  - The telescope assembly of the Ariel space mission: an updated overview
ID  - discovery10197949
UR  - http://dx.doi.org/10.1117/12.3018735
N2  - Ariel (Atmospheric Remote-Sensing Infrared Exoplanet Large Survey) is the adopted M4 mission in the framework of the ESA ?Cosmic Vision? program. Its purpose is to survey the atmospheres of known exoplanets through transit spectroscopy. The launch is scheduled for 2029. The scientific payload consists of an off-axis, unobscured Cassegrain telescope feeding a set of photometers and spectrometers in the waveband 0.5-7.8 ľm and operating at cryogenic temperatures (55 K). The Telescope Assembly is based on an innovative fully aluminium design to tolerate thermal variations to avoid impacts on the optical performance; it consists of a primary parabolic mirror with an elliptical aperture of 1.1 m (the major axis), followed by a hyperbolic secondary that is mounted on a refocusing system, a parabolic re-collimating tertiary and a flat folding mirror directing the output beam parallel to the optical bench. An innovative mounting system based on 3 flexure hinges supports the primary mirror on one of the optical bench sides. The instrument bay on the other side of the optical bench houses the Ariel IR Spectrometer (AIRS) and the Fine Guidance System / NIR Spectrometer (FGS/NIRSpec). The Telescope Assembly is in phase B2 towards the Critical Design Review; the fabrication of the structural and engineering models has started; some components, i.e., the primary mirror and its mounting system are undergoing further qualification activities. This paper aims to update the scientific community on the progress concerning the development, manufacturing and qualification activity of the ARIEL Telescope Assembly.
ER  -