Processing of analogues of plume fallout in cold regions of Enceladus by energetic electrons

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Table 1

Band positions of the parental molecules in this experiment in comparison with the values obtained from the literature, and the corresponding band strength (A).

Molecule	Band position (cm^-1/μm)	Band position (cm^-1)	Vibrational mode	A-value^∗
	(this work)	(literature)^∗		(cm molecule^-1)

H₂O	1643/ 6.08	1670	O−H bend	8.4×10^-18
CO₂	2342/ 4.27	2340	C=O stretch	7.3×10^-17
CH₄	1304/ 7.67	1304	C−H deformation	6.1×10^-18
NH₃	1124/ 8.89	1115	N−H umbrella	1.4×10^-17
CH₃OH	1017/ 9.83	1018	C−O stretch	1.0×10^-17

Notes. Comparing results from different references, ice mixtures and temperatures, the estimated uncertainties in the band strengths (A) are up to 20%.

^(a)

d’Hendecourt & Allamandola (1986).

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