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Table 2
Physical parameters adopted for the Orion KL cloud components.
| Component | Source diameter | Offset (IRc2) | n(H2) | T K | △ vFWHM | v LSR |
| (″) | (″) | cm-3 | (K) | (km s-1) | (km s-1) | |
|
|
||||||
| Extended ridge (ER) | 120 | 0 | 105 | 60 | 4 | 8.5 |
| Compact ridge (CR) | 15 | 7 | 106 | 110 | 3 | 8 |
| High-velocity plateau (HVP) | 30 | 4 | 106 | 100 | 30 | 11 |
| Plateau (PL) | 20 | 0 | 5 × 106 | 150 | 25 | 6 |
| Hot core (HC) | 10 | 2 | 1.5 × 107 | 220 | 10 | 5.5 |
| 20.5 km s-1 component | 5 | 2 | 5 × 106 | 90 | 7.5 | 20.5 |
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