论文标题
使用陨石光谱的红外小行星组成分析光谱分辨率的作用
Role of spectral resolution for infrared asteroid compositional analysis using meteorite spectra
论文作者
论文摘要
在这项工作中，分析了中红外范围的陨石的潜在矿物鉴定，以评估针对针对小体面的未来任务的观察可能性。通过弥漫性反射（漂移）仪器检查了三个碳质和三个普通的软骨陨石，并且主要矿物质的存在也通过粉末衍射方法证实。中红外矿物识别的可能性和约束是通过人为地降低光谱分辨率的。我们的研究表明，为了确定主要矿物带，需要光谱分辨率$ \ leq 10 $ 〜cm $^{ - 1} $（$ \ leq0.15μ$ m）。在20-100〜cm $^{ - 1} $（0.3-1.5〜 $μ$ m）分辨率的分辨率尚不确定，并且具有分辨率$> 100 $ 〜cm $^{ - 1} $，几乎是不可能的。
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$^{-1}$ ($\leq 0.15 μ$m) is needed. At 20-100~cm$^{-1}$ (0.3 - 1.5~$μ$m) resolution the identification of these minerals is uncertain, and with a resolution $>100$~cm$^{-1}$, it is almost impossible.
