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Calibration of the AKARI Far-Infrared Imaging Fourier-Transform Spectrometer

Nakagawa, Takao; Shirahata, Mai; Doi, Yasuo +16 more

The Far-Infrared Surveyor (FIS) onboard the AKARI satellite has a spectroscopic capability provided by a Fourier transform spectrometer (FIS-FTS). FIS-FTS is the first space-borne imaging FTS dedicated to far-infrared astronomical observations. We describe the calibration process of the FIS-FTS, and discuss its accuracy and reliability. The calibr…