Share Email Print
cover

Proceedings Paper

Telescope system of the Space Infrared telescope for cosmology and astrophysics (SPICA) mission
Author(s): Takashi Onaka; Takao Nakagawa; Toshio Matsumoto; Hiroshi Murakami; Hideo Matsuhara; Hirokazu Kataza; Hidehiro Kaneda; Keigo Enya; Yukari Y. Yui; Motohide Tamura
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The Space Infrared Telescope for Cosmology and Astrophysics (SPICA) mission is a Japanese astronomical infrared satellite project optimized for mid' to far-infrared observatories. It will be launched at ambient temperature and cooled down on orbit by mechanical coolers on board with an efficient radiative cooling system, which allow us to have a 3.5m cooled (4.5K) telescope in space. SPICA will answer a number of important problems in present-day astronomy, ranging from the star-formation history of the universe to the formation of planets, owing to its high spatial resolution and unprecedented sensitivity in the mid- to far-infrared. The large aperture mirror for cryogenically use in space, however, demand a challenging development for the telescope system. A single aperture design of the primary mirror will be adopted for the SPICA telescope rather than deployable mirror designs to avoid further complexity and ensure the feasibility. The number of actuators for the primary mirror, if needed, will be minimized. Silicon carbide and carbon-filter reinforced silicon carbide are extensively investigated at present as the prime candidate materials for the SPICA primary mirror. This presentation reports the current status of the SPICA telescope system development.

Paper Details

Date Published: 13 April 2018
PDF: 7 pages
Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105682B (13 April 2018); doi: 10.1117/12.2500106
Show Author Affiliations
Takashi Onaka, The Univ. of Tokyo (Japan)
Takao Nakagawa, Institute of Space and Astronautical Science (Japan)
Toshio Matsumoto, Institute of Space and Astronautical Science (Japan)
Hiroshi Murakami, Institute of Space and Astronautical Science (Japan)
Hideo Matsuhara, Institute of Space and Astronautical Science (Japan)
Hirokazu Kataza, Institute of Space and Astronautical Science (Japan)
Hidehiro Kaneda, Institute of Space and Astronautical Science (Japan)
Keigo Enya, Institute of Space and Astronautical Science (Japan)
Yukari Y. Yui, Institute of Space and Astronautical Science (Japan)
Motohide Tamura, National Astronomical Observatory of Japan (Japan)


Published in SPIE Proceedings Vol. 10568:
International Conference on Space Optics — ICSO 2004
Josiane Costeraste; Errico Armandillo, Editor(s)

© SPIE. Terms of Use
Back to Top