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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Homogeneity and heterogeneity in near-infrared FTIR spectra of Ryugu returned samples

Fig. 2

Influence of absorption in atmosphere. Absorption bands of OH (1.4, 1.85, 2.6–2.8, 3.1 μm) and of CO2 (4.2 μm) are detected in a background signal, and b Infragold spectra after the sample measurement (example of A0014). Basically no absorption band is detected in the Infragold spectra before the sample measurement. c Only CO2 absorption is detected in the sample spectrum (example of A0014)

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