Role of spectral resolution for infrared asteroid compositional analysis using meteorite spectra
In this work the potential mineral identification of meteorites is analysed for the mid-infrared range, to evaluate observational possibilities for future missions targeting small body surfaces. Three carbonaceous and three ordinary chondrite meteorites are examined by a diffuse reflection (DRIFT) i...
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| description | In this work the potential mineral identification of meteorites is analysed for the mid-infrared range, to evaluate observational possibilities for future missions targeting small body surfaces. Three carbonaceous and three ordinary chondrite meteorites are examined by a diffuse reflection (DRIFT) instrument, and the presence of principal minerals is confirmed by a powder diffraction method as well. The possibilities and constraints of mineral identifications in the mid-infrared are simulated by artificially degrading the spectral resolution. Our research shows that for the definite identification of principal mineral bands, a spectral resolution \(\leq 10\)~cm\(^{-1}\) (\(\leq 0.15 \mu\)m) is needed. At 20-100~cm\(^{-1}\) (0.3 - 1.5~\(\mu\)m) resolution the identification of these minerals is uncertain, and with a resolution \(>100\)~cm\(^{-1}\), it is almost impossible. |
| doi_str_mv | 10.48550/arxiv.2005.11999 |
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Three carbonaceous and three ordinary chondrite meteorites are examined by a diffuse reflection (DRIFT) instrument, and the presence of principal minerals is confirmed by a powder diffraction method as well. The possibilities and constraints of mineral identifications in the mid-infrared are simulated by artificially degrading the spectral resolution. Our research shows that for the definite identification of principal mineral bands, a spectral resolution \(\leq 10\)~cm\(^{-1}\) (\(\leq 0.15 \mu\)m) is needed. 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| subjects | Asteroid missions Fourier transforms Infrared analysis Meteorites Meteors & meteorites Minerals Physics - Earth and Planetary Astrophysics Physics - Instrumentation and Methods for Astrophysics Spectra Spectral resolution |
| title | Role of spectral resolution for infrared asteroid compositional analysis using meteorite spectra |
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