Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..430..477k&link_type=abstract
Pathways Towards Habitable Planets, proceedings of a workshop held 14 to 18 September 2009 in Barcelona, Spain. Edited by Vincen
Astronomy and Astrophysics
Astrophysics
2
Scientific paper
We describe the present status of the development of a wavefront correction system for the SPICA (Space Infrared telescope for Cosmology and Astrophysics) project. SPICA is a next-generation space infrared observatory with a 3-meter class telescope, One of the goals of SPICA is the detection and characterization of Jupiter-like extra-solar planets around nearby stars at mid-infrared wavelengths. We have started to develop a wavefront correction system for SPICA which is a critical component in order to achieve a very high dynamic range (over 106) to detect young Jupiter-like planets. It includes a 1020-element MEMS deformable mirror and a tip-tilt compensation system. We present a laboratory demonstration of a contrast enhancement experiment by using a deformable mirror and a checker-board type coronagraph mask. This system will largely relax the surface quality requirements for the telescope primary mirror.
Abe Lyu
Enya Keigo
Haze Kanae
Higuchi Shigeto
Kotani Takao
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