The Far-Infrared Surveyor (FIS) for AKARI
Abstract
The Far-Infrared Surveyor (FIS) is one of two focal plane instruments on the AKARI satellite. FIS has four photometric bands at 65, 90, 140, and 160 um, and uses two kinds of array detectors. The FIS arrays and optics are designed to sweep the sky with high spatial resolution and redundancy. The actual scan width is more than eight arcmin, and the pixel pitch is matches the diffraction limit of the telescope. Derived point spread functions (PSFs) from observations of asteroids are similar to the optical model. Significant excesses, however, are clearly seen around tails of the PSFs, whose contributions are about 30% of the total power. All FIS functions are operating well in orbit, and its performance meets the laboratory characterizations, except for the two longer wavelength bands, which are not performing as well as characterized. Furthermore, the FIS has a spectroscopic capability using a Fourier transform spectrometer (FTS). Because the FTS takes advantage of the optics and detectors of the photometer, it can simultaneously make a spectral map. This paper summarizes the in-flight technical and operational performance of the FIS.
Keywords
Cite
@article{arxiv.0708.3004,
title = {The Far-Infrared Surveyor (FIS) for AKARI},
author = {Mitsunobu Kawada and Hajime Baba and Peter D. Barthel and David Clements and Martin Cohen and Yasuo Doi and Elysandra Figueredo and Mikio Fujiwara and Tomotsugu Goto and Sunao Hasegawa and Yasunori Hibi and Takanori Hirao and Norihisa Hiromoto and Woong-Seob Jeong and Hidehiro Kaneda and Toshihide Kawai and Akiko Kawamura and Do Kester and Tsuneo Kii and Hisato Kobayashi and Suk Minn Kwon and Hyung Mok Lee and Sin'itirou Makiuti and Hiroshi Matsuo and Shuji Matsuura and Thomas G. Müller and Noriko Murakami and Hirohisa Nagata and Takao Nakagawa and Masanao Narita and Manabu Noda and Sang Hoon Oh and Yoko Okada and Haruyuki Okuda and Sebastian Oliver and Takafumi Ootsubo and Soojong Pak and Yong-Sun Park and Chris P. Pearson and Michael Rowan-Robinson and Toshinobu Saito and Alberto Salama and Shinji Sato and Richard S. Savage and Stephen Serjeant and Hiroshi Shibai and Mai Shirahata and Jungjoo Sohn and Toyoaki Suzuki and Toshinobu Takagi and Hidenori Takahashi and Matthew Thomson and Fumihiko Usui and Eva Verdugo and Toyoki Watabe and Glenn J. White and Lingyu Wang and Issei Yamamura and Chisato Yamamuchi and Akiko Yasuda},
journal= {arXiv preprint arXiv:0708.3004},
year = {2015}
}
Comments
23 pages, 10 figures, and 2 tables. Accepted for publication in the AKARI special issue of the Publications of the Astronomical Society of Japan