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Home All issues Volume 665 (September 2022) A&A, 665 (2022) A89 Full HTML
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Table B.4

Peak position and FWHM of methyl cyanide CH3 antisymmetric deformation mode (1410 cm−1/ 7.092 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 1410.0 21.0 7.092 0.106 - - - - - - -
H2O 1411.6 19.0 7.084 0.095 1411.2 18.3 7.086 0.092 1411.2 18.9 7.086 0.095
CO 1411.6 12.1 7.084 0.061 1410.2 12.0 7.091 0.060 - - - -
CO2 1411.6 9.2 7.084 0.046 1411.6 7.5 7.084 0.038 - - - -
CH4 1411.2 12.6 7.086 0.063 1410.2 11.7 7.091 0.059 1408.3 14.5 7.101 0.073
NH3 1414.0 26.3 7.072 0.131 1415.0 26.7 7.067 0.133 1412.6 21.1 7.079 0.106
H2O:CO2 - - - - 1412.1 15.1 7.082 0.076 - - - -
4 comp - - - - - - - - 1409.7 20.1 7.093 0.101
30 Pure ice 1410.0 21.0 7.092 0.105 - - - - - - - -
H2O 1410.7 18.4 7.089 0.093 1410.2 18.0 7.091 0.090 1411.2 18.3 7.086 0.092
CO 1411.2 19.2 7.086 0.096 1412.6 16.8 7.079 0.0084 - - - -
CO2 1411.6 9.4 7.084 0.047 1411.6 7.7 7.084 0.039 - - - -
CH4 1411.6 12.8 7.084 0.064 1411.2 11.2 7.086 0.056 - - - -
NH3 1412.1 25.7 7.082 0.129 1413.6 26.7 7.074 0.134 1412.6 20.0 7.079 0.100
H2O:CO2 - - - - 1411.6 15.1 7.084 0.076 - - - -
4 comp - - - - - - - - 1411.6 19.6 7.084 0.098
50 Pure ice 1410.2 21.1 7.091 0.106 - - - - - - - -
H2O 1411.2 18.3 7.086 0.092 1410.2 18.5 7.091 0.093 1411.2 18.2 7.086 0.092
CO 1413.1 24.3 7.077 0.122 1414.0 24.2 7.077 0.121 - - - -
CH4 1411.2 19.0 7.086 0.095 1411.2 17.6 7.086 0.088 - - - -
NH3 1414.0 26.1 7.072 0.130 1414.5 27.8 7.069 0.139 1412.6 19.2 7.079 0.096
H2O:CO2 - - - - 1412.1 14.9 7.082 0.075 - - - -
4 comp - - - - - - - - 1411.2 19.2 7.086 0.096
80 Pure ice 1410.9 22.0 7.088 0.111 - - - - - - - -
H2O 1411.2 19.2 7.086 0.096 1411.2 18.5 7.086 0.093 1411.2 18.1 7.086 0.091
CO2 1412.6 10.7 7.079 0.054 1408.7 - 7.100 - - - - -
- - - 1419.3 - 7.045 - - - - -
NH3 1413.1 26.5 7.077 0.133 1413.1 22.5 7.077 0.113 1413.1 18.1 7.077 0.091
H2O:CO2 - - - - 1412.1 18.5 7.082 0.093 - - - -
4 comp - - - - - - - - 1410.7 18.9 7.089 0.095
100 Pure ice 1408.5 4.8 7.100 0.024 - - - - - - - -
1416.6 - 7.060 - - - - - - - -
1419.8 - 7.043 - - - - - - - -
H2O 1411.6 19.6 7.084 0.098 1410.7 19.2 7.089 0.096 1411.2 18.3 7.086 0.092
CO2 1416.0 19.8 7.062 0.099 - - - - - - - -
NH3 - - - - 1416.5 - 7.060 - 1412.6 21.2 7.079 0.106
H2O:CO2 - - - - 1412.6 21.2 7.079 0.106 - - - -
4 comp - - - - - - - - 1410.7 18.8 7.090 0.094
120 Pure ice 1408.5 2.6 7.100 0.013 - - - - - - - -
- 1416.2 - 7.061 - - - - - - - -
- 1419.6 - 7.044 - - - - - - - -
H2O 1409.2 23.1 7.096 0.116 1410.7 21.1 7.089 0.106 1411.2 20.1 7.086 0.101
NH3 1408.7 3.1 7.098 0.036 1408.7 3.1681 7.099 0.016 1412.6 21.2 7.079 0.106
1416.4* 7.6 7.060* 0.038 1416.5* - 7.060 - - - - -
1419.8* - 7.043* - 1419.8* 8.016 7.043 0.040 - - - -
H2O:CO2 - - - - 1412.6 22.7 7.079 0.114 - - - -
4 comp - - - - - - - - 1411.2 18.4 7.086 0.092
140 Pure ice 1408.7 3.36 7.098 0.017 - - - - - - - -
1416.0* 7.062* - - - - - - - -
1419.1* 7.1 7.047* 0.035 - - - - - - -
H2O 1408.7 7.1 7.098* 0.022 1408.7 4.9 7.098 0.025 1408.7 4.6 7.098 0.023
1416.0* 8.9 7.060* 0.044 1416.0 - 7.062 - - - -
1418.9* - 7.043 1418.9 - - 1418.4 9.6 7.050 0.048
H2O:CO2 - - - - 1408.7 4.704 7.098 0.024 - - - -
- - - 1416.0* 8.93 7.062 0.044 - - -
- - - 1418.8* - 7.048 - - -
4 comp - - - - - - - - 1409.2 5.9 7.0961 0.0297
150 Pure 1409.0 4.0 7.097 0.0201 - - - - - - -
1419.1 7.6 7.046 0.038 - - - - - - -

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