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Table 3
Parameters used in the CO model.
| Parameters held constant | |
| Distance to source | Dsource = 180 pc |
| CO abundance | X(CO) = 8 × 10-5 |
| LSR velocity | υLSR = 2.4 km s-1 |
| Velocity profile | υ(r) = 20 r/Rmax km s-1 |
| Shell thickness | Δr/Rmax = 0.12 |
| Source size | θsource = 30′′ |
| Microturbulence | vturb = 1.5 km s-1 |
| Gas-to-dust mass ratio | Mgas/Mdust = 100 |
| Emissivity parameter | κ250 μm = 25 cm2 g-1 |
| Dust frequency dependence | β = 1 |
| Free parameters | |
| H2 density | n(H2) = 1 × 104–1 × 108 cm-3 |
| Kinetic temperature | Tkin = 10–330 K |
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