The 2020 SPICA telescope preliminary design and predicted performance

Julien Archer; Dominic Doyle; Joel Boyadjian; Lucas Courcoult Mifsud; Anouck Paoletti; Rémi Pujol; Didier Castel; Stéphane Iugovich; Thierry Blais; Jan Tauber; Jacques Rouquet; Hideo Matsuhara; Hidehiro Kaneda; Takao Nakagawa

doi:10.1117/12.2561626

13 December 2020 The 2020 SPICA telescope preliminary design and predicted performance

Julien Archer, Dominic Doyle, Joel Boyadjian, Lucas Courcoult Mifsud, Anouck Paoletti, Rémi Pujol, Didier Castel, Stéphane Iugovich, Thierry Blais, Jan Tauber, Jacques Rouquet, Hideo Matsuhara, Hidehiro Kaneda, Takao Nakagawa

Author Affiliations +

Proceedings Volume 11443, Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave; 1144327 (2020) https://doi.org/10.1117/12.2561626
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

The ESA/JAXA SPICA mission is a candidate for the ESA Cosmic Vision Medium Class M5 opportunity. Since 2019 an Airbus Defence and Space team has been performing a trade-off study (on behalf of ESA) to establish a baseline telescope optical configuration and design, which can meet the mission scientific performance requirements. This paper describes the telescope baseline design selected, with first estimates of the expected optical performance. The optical design wavelength is 20 microns for an operating temperature of 8 K covering a total bandwidth of 12 to 420 microns over a 30 arc minutes field of view, with a total required collecting area of at least 4.0 m². The fundamental mission science driver is to achieve a sky background (astrophysical sources) limited performance. The telescope is designed to illuminate three instruments namely; SMI (JAXA - Japan), SAFARI (SRON - Netherlands) and B-BOP (CEA - France).

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Julien Archer, Dominic Doyle, Joel Boyadjian, Lucas Courcoult Mifsud, Anouck Paoletti, Rémi Pujol, Didier Castel, Stéphane Iugovich, Thierry Blais, Jan Tauber, Jacques Rouquet, Hideo Matsuhara, Hidehiro Kaneda, and Takao Nakagawa "The 2020 SPICA telescope preliminary design and predicted performance", Proc. SPIE 11443, Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave, 1144327 (13 December 2020); https://doi.org/10.1117/12.2561626

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