Table 4:
Diagnostics of conditions in molecular clouds or solar
nebula from the composition of the residue (cf. Sect. 4;
Table 1).
| Molecular probes in the IR |
Diagnostic of ... |
| COO- vs. HMT |
CO/CO2/CH3OH ratio, H2O ice dilution, UV dose, hard/ soft UV, ice irradiation temp. |
| Amides vs. HMT |
UV dose |
| Amides vs. COO- |
UV dose |
| Esters vs. HMT |
UV dose |
| Esters vs. COO- |
UV dose |
| Amides vs. total |
CO/CH3OH ratio |
| HMT vs. total |
UV dose, CO/CO2/CH3OH ratio, H2O ice dilution |
| POM-like species |
Low H2O concentration |
| Organics vs. ice |
UV dose, H2O ice dilution |