Fig. 2From: The spatial distribution of soluble organic matter and their relationship to minerals in the asteroid (162173) Ryugua The number of species and the relative intensity (%) of identified compounds from A0080. The relative intensity was calculated using total intensity from ROI (inside of the dotted line, corresponding to the sample surface of A0080). b DESI-HRMS images of total ions of CHN, CHO, CHO–Na, and CHNO compounds, respectively. Outlines in these images for each compound correspond to > 40% of maximum ion intensityBack to article page