The Infrared Camera (IRC) for AKARI - Design and Imaging Performance

T. Onaka; H. Matsuhara; T. Wada; N. Fujishiro; H. Fujiwara; M. Ishigaki; D. Ishihara; Y. Ita; H. Kataza; W. Kim; T. Matsumoto; H. Murakami; Y. Ohyama; S. Oyabu; I. Sakon; T. Tanabe; T. Takagi; K. Uemizu; M. Ueno; F. Usui; H. Watarai; M. Cohen; K. Enya; T. Ootsubo; C. P. Pearson; N. Takeyama; T. Yamamuro; Y. Ikeda

doi:10.1093/pasj/59.sp2.s401

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arXiv · 0705.4144

The Infrared Camera (IRC) for AKARI - Design and Imaging Performance

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Abstract

The Infrared Camera (IRC) is one of two focal-plane instruments on the AKARI satellite. It is designed for wide-field deep imaging and low-resolution spectroscopy in the near- to mid-infrared (1.8--26.5um) in the pointed observation mode of AKARI. IRC is also operated in the survey mode to make an all-sky survey at 9 and 18um. It comprises three channels. The NIR channel (1.8--5.5um) employs a 512 x 412 InSb array, whereas both the MIR-S (4.6--13.4um) and MIR-L (12.6--26.5um) channels use 256 x 256 Si:As impurity band conduction arrays. Each of the three channels has a field-of-view of about 10' x 10' and are operated simultaneously. The NIR and MIR-S share the same field-of-view by virtue of a beam splitter. The MIR-L observes the sky about $25' away from the NIR/MIR-S field-of-view. IRC gives us deep insights into the formation and evolution of galaxies, the evolution of planetary disks, the process of star-formation, the properties of interstellar matter under various physical conditions, and the nature and evolution of solar system objects. The in-flight performance of IRC has been confirmed to be in agreement with the pre-flight expectation. This paper summarizes the design and the in-flight operation and imaging performance of IRC.

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T. Onaka, H. Matsuhara, T. Wada, N. Fujishiro, H. Fujiwara, M. Ishigaki, D. Ishihara, Y. Ita, H. Kataza, W. Kim, T. Matsumoto, H. Murakami, Y. Ohyama, S. Oyabu, I. Sakon, T. Tanabe, T. Takagi, K. Uemizu, M. Ueno, F. Usui, H. Watarai, M. Cohen, K. Enya, T. Ootsubo, C. P. Pearson, N. Takeyama, T. Yamamuro, Y. Ikeda. 2007-05-29. The Infrared Camera (IRC) for AKARI - Design and Imaging Performance. https://doi.org/10.1093/pasj%2F59.sp2.s401

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