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Table 3
Models run for the chemistry of H2S2, HS
and S2 toward IRAS 16293.
| Freeze-out | ||||
| Model | nH2 (cm-3) | f s | reactions group | Reactions1 |
|
|
||||
| 50% HS2→ mHS2 | ||||
| 50% HS2→ mH2S2 | ||||
| (a) | 1 × 107 | 1.3 × 10-5 | 1 | 50% H2S2→ mH2S2 |
| 50% H2S2→ mHS2 | ||||
| (b) | 1 × 108 | 1.3 × 10-5 | 1 | 50% S → mHS |
| 50% S → mH2S | ||||
| 0% S → mS | ||||
|
|
||||
| 50% HS2→ mHS2 | ||||
| 50% HS2→ mH2S2 | ||||
| (c) | 1 × 107 | 1.4 × 10-6 | 1 | 50% H2S2→ mH2S2 |
| 50% H2S2→ mHS2 | ||||
| (d) | 1 × 108 | 1.4 × 10-6 | 1 | 50% S → mHS |
| 50% S → mH2S | ||||
| 0% S → mS | ||||
|
|
||||
| 100% HS2→ mHS2 | ||||
| 0% HS2→ mH2S2 | ||||
| (e) | 1 × 107 | 1.3 × 10-5 | 2 | 100% H2S2→ mH2S2 |
| 0% H2S2→ mHS2 | ||||
| (f) | 1 × 108 | 1.3 × 10-5 | 2 | 0% S → mHS |
| 0% S → mH2S | ||||
| 100% S → mS | ||||
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