Table 1
Parameter range used to model the chemistry evolution of the hot core and the plateau of Orion KL.
| Size | Accretion | Sulphur | Maximum | Star | Initial gas | Final gas | S goes into | S+ goes into | |
| Component | (arcsec) | efficiency | abundance | temperature T | mass | density  |
density nH | mOCS/mH2S | mOCS/mH2S |
| f r | (S⊙) | (K) | (M⊙) | ×102 (cm-3) | ×106 (cm-3) | (%) | (%) | ||
|
|
|||||||||
| Hot core | 10 | 0.30−0.85 | 0.01−1 | 300 | 5−15 | 4 | 10−100 | 0–50–100 | 0–50–100 |
| Plateau | 30 | 0.85 | 0.01−0.1 | 1000−2000 | ... | 1 | 0.5−5 | 0–50–100 | 0–50–100 |
Notes. Column 9 indicates the percentage of S goes into solid OCS (mOCS) or solid H2S (mH2S) at the end of Phase I, and Col. 10 the percentage of S+ goes into mOCS or mH2S at the end of Phase I.
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