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Table 1
Fixed various timescales and other physical parameters in the fiducial model.
| Prestellar timescale | 7.3×105 yr |
| Isothermal collapse timescale | 2.0×104 yr |
| Warm-up timescale/contraction timescale | 2.0×105 yr |
| Hot corino timescale | 2.8×105 yr |
| Protostellar timescale | 5.0×105 yr |
| Visual extinction of ambient clouds | 3.0 mag |
| Maximum temperature | 200 K |
| Unattenuated FUV flux | 1.7 Habing |
| Dust-to-gas mass ratio | 0.01 |
| Dust albedo | 0.6 |
| Dust grain radius | 0.1 µm |
| Dust material density | 3.0 g cm−3 |
| Dust site density | 1015 cm−2 |
| Chemical desorption efficiency | 0.03 |
| Ratio of surface diffusion to desorption energies | 0.4 |
| Ratio of bulk diffusion to desorption energies | 0.8 |
| Mean molecular weight | 1.36 |
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