Ion irradiation triggers the formation of the precursors of complex organics in space - The case of formaldehyde and acetaldehyde

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Table 2

CH₄ formation cross section in H₂O:CH₃OH:NH₃ mixtures after H⁺ bombardment.

Experiment	σ (16u/eV)	y_∞
3_200_L	0.035 ± 0.011	0.045 ± 0.009
3_200_H	0.048 ± 0.005	0.042 ±0.001
1_200_L	0.053 ± 0.004	0.037 ± 0.002
1_200_H	0.036 ± 0.001	0.048 ± 0.001
3_40	0.051 ± 0.005	0.035 ± 0.0014
1_40	0.043 ± 0.006	0.046 ± 0.002

Notes. Data from the analysis of the 1305 cm⁻¹ band.

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