| Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2014: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2013: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2012: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
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| Outline of Final Research Achievements |
We developed a Germanium Immersion Grating Mid-Infrared Cryogenic Spectrograph (GIGMICS), which operates at N-band (8-13 μm in wavelength λ) with maximum resolving power R（≡λ /Δλ）≦ 40,000. In order to conduct the line survey observation by GIGMICS equipped with optical/infrared telescopes in abroad, further design and developement were made for the followings: (1) adjustable stage, (2) external optical system for optical alignment, (3)4 additional spectral slit mirrors, (4)low-pressure gas cell for wavelength calibration, (5)software for the analysis of echelle format, and (6)radiative transfer code for spectral analysis. By the observed spectral data for Venus by the first light observation of GIGMICS in 2011 equipped with the Kanata 1.5-m telescope, we clarified the isotopic fractionation of 13C in CO2 in the Venusian atmosphere. We also clarified the velocity structure of the ambient cloud of the Planetary nebula NGC7027 by the emission line of [SIV] observed by GIGMICS.
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