Table 1
Branching ratios of methanol ice photodissociation.
| Reactions | Branching ratios (%) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GA08 (a) | OB09 (b) | LA11-M (c) | LA11-MX (d) | LA11-HM (e) | PA16 (f) | WW18-1 (g) | WW18-2 (h) | |||||
| CH3OH# + hv | → | CH3# | + | OH# | 60 | 15 | 90 | 5 | 5 | 20 | 5 | 12 |
| → | OCH3# | + | H# | 20 | 14 | 5 | 90 | 5 | 13 | 39 | 36 | |
| → | CH2OH# | + | H# | 20 | 71 | 5 | 5 | 90 | 67 | 53 | 49 | |
| → | H2CO# | + | H2# | -/- | -/- | -/- | -/- | -/- | -/- | 2 | 2 | |
Notes. The hashtag indicates chemical species in the solid phase. (a)Garrod et al. (2008), (b)Öberg et al. (2009a), (c)Laas et al. (2011) – methyl BR, (d)Laas et al. (2011) – methoxy BR, (e)Laas et al. (2011) – hydroxymethyl BR, (f) Paardekooper et al. (2016), (g)Weaver et al. (2018) – assuming CH3 =5%, (h)Weaver et al. (2018) – assuming CH3 = 12%.
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