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Home All issues Volume 665 (September 2022) A&A, 665 (2022) A89 Full HTML
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Table B.3

Peak position and FWHM of methyl cyanide combination mode (1448.3 cm−1 / 6.905 µm) in pure and mixed ices at temperatures ranging from 15 - 150 K.

T Matrix 1:5 1:10 1:20
Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM
(cm-1) (cm-1) (µm) (µm) (cm-1) (cm-1) (µm) (µm) (cm-1) (cm-1) (µm) (µm)
15 Pure ice 1448.3 18.9 6.9045 0.090 - - - - - - - -
H2O 1446.4 15.9 6.914 0.076 - - - - 1446.4 15.0 6.914 0.072
CO 1447.3 10.7 6.909 0.051 1445.9 9.8 6.916 0.047 - - - -
CO2 1446.8 9.8 6.911 0.047 1446.4 8.1 6.914 0.038 - - - -
CH4 1446.4 11.5 6.914 0.055 1445.9 10.3 6.916 0.049 1445.4 9.6 6.919 0.046
NH3 1446.4 19.8 6.914 0.095 1447.8 20.4 6.907 0.097 1446.8 17.9 6.912 0.086
H2O:CO2 - - - - 1446.4 13.9 6.914 0.066 - - - -
4 comp - - - - - - - - 1445.9 15.3 6.916 0.073
30 Pure ice 1448.5 18.8 6.904 0.090 - - - - - - - -
H2O 1446.4 15.6 6.914 0.075 - - - - 1444.4 14.6 6.923 0.070
CO 1448.3 12.3 6.905 0.059 1447.8 13.3 6.907 0.063 - - - -
CO2 1446.8 9.9 6.912 0.047 1446.4 8.1 6.914 0.039 - - - -
CH4 1446.8 12.2 6.912 0.058 1446.4 11.1 6.914 0.053 1445.9 11.0 6.916 0.053
NH3 1446.8 19.7 6.912 0.0942 1447.3 19.7 6.909 0.094 1445.9 18.4 6.916 0.088
H2O:CO2 - - - - 1446.4 13.7 6.914 0.066 - - - -
4 comp - - - - - - - 1445.9 14.8 6.916 0.071
50 Pure ice 1448.0 18.8 6.906 0.089 - - - - - - - -
H2O 1445.4 15.2 6.9186 0.072 - - - - 1444.4 14.3 6.923 0.069
CO2 1446.4 10.3 6.914 0.049 1446.4 8.2 6.914 0.039 - - - -
CH4 1447.8 16.8 6.907 0.0780 1446.8 14.9 6.911 0.071 1445.9 16.8 6.916 0.080
NH3 1446.8 19.0 6.912 0.0908 1445.9 18.2 6.916 0.087 1445.4 18.1 6.919 0.087
H2O:CO2 - - - - 1445.9 13.5 6.9163 0.0648 - - - -
4 comp - - - - - - - 1444.4 14.5 6.923 0.069
80 Pure ice 1447.6 18.5 6.908 0.088 - - - - - - - -
H2O 1444.9 14.9 6.921 0.071 - - - - 1443.9 13.5 6.925 0.065
CO2 1446.4 11.9 6.914 0.057 1454.5 12.8 6.875 0.060 - - - -
NH3 1446.8 18.3 6.912 0.0874 1445.9 17.9 6.916 0.085 1445.4 17.4 6.919 0.083
H2O:CO2 - - - - 1445.9 13.7 6.916 0.066 - - - -
4 comp - - - - - - - 1443.5 14.8 6.928 0.071
100 Pure ice 1454.1 12.1 6.877 0.057 - - - - - - - -
H2O 1444.9 15.0 6.921 0.072 - - - - 1443.9 13.5 6.925 0.065
CO2 1454.1 15.8 6.877 0.075 - - - - - - - -
NH3 1446.8 21.0 6.912 0.100 1454.1 21.9 6.877 0.103 1445.9 20.6 6.916 0.099
H2O:CO2 - - - - 1445.9 14.6 6.916 0.070 - - - -
4 comp - - - - - - - 1443.9 15.3 6.925 0.073
120 Pure ice 1453.6 5.7 6.880 0.027 - - - - - - - -
H2O 1445.4 16.6 6.919 0.079 - - - - 1443.9 13.8 6.925 0.066
NH3 1454.1 6.0 6.8773 0.028 1454.1 5.5 6.877 0.026 1445.9 20.6 6.916 0.099
H2O:CO2 - - - - 1445.9 16.8 6.916 0.080 - - - -
4 comp - - - - - - - 1443.9 15.7 6.925 0.075
140 Pure ice 1453.1 6.3 6.882 0.030 - - - - - - - -
H2O 1453.1 7.8 6.882 0.037 - - - - 1452.6 11.4 6.884 0.054
H2O:CO2 - - - - 1453.1 8.0 6.882 0.038 - - - -
4 comp - - - - - - - - 1453.1 7.4 6.882 0.035

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