Fig. 1
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High-resolution mass spectrum collected on 3 August 2015 by the DFMS in 67P’s coma around m/z = 41 (black square markers). The peaks, associated with C3H5, C2H3N, CHN2, and C2HO at the exact positions indicated by the dashed grey lines, are normally fitted with double-Gaussian peak profile functions (dashed blue lines with the sum shown as a solid red line).
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