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Table 3
Select modeled grain-surface column density ratios of solid-phase molecules relative to water for all three mass-accretion rates, calculated at the end of stage 1, using an on-source position with no beam convolution.
| Species | 3.0 × 10−3 (M⊙ yr−1) | 1.0 × 10−3 (M⊙ yr−1) | 1.0 × 10−4 (M⊙ yr−1) |
|---|---|---|---|
| CO | 4.1(−1) | 8.9(−2) | 2.6(−5) |
| CO2 | 1.2(−1) | 2.8(−2) | 7.7(−4) |
| CH4 | 6.0(−2) | 1.4(−2) | 3.8(−4) |
| NH3 | 2.1(−1) | 4.9(−2) | 8.2(−4) |
| H2CO | 9.7(−3) | 2.2(−3) | 7.6(−6) |
| CH3OH | 2.6(−2) | 6.1(−3) | 2.1(−5) |
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