Table 4
Values of Sgas (in ppm) in eachsource based on Fig. 4.
| C/O | 0.4 | 0.6 | 0.8 | 1.0 | 1.2 |
|---|---|---|---|---|---|
| ζ17 = 3, n4 = 1 | |||||
| L1521E | ≫14 | 14 | 14 | ≥14 | >14 |
| L1521B | >4.4 | >1.4 | >1.4 | >3 | >4.4 |
| L1498 | 3 | 1.4 | 1.4 | 2 | 3 |
| L1544-1(†) | 0.14 | <0.14 | <0.14 | <0.14 | 0.14 |
| L1544-3(†) | 1 | 0.3 | 0.3 | 0.3 | 1 |
| ζ17 = 3, n4 = 10 | |||||
| L1521E | ≫ 14 | ≈14 | ≈14 | ≈14 | ≈14 |
| L1521B | > 8 | > 3 | > 1.4 | > 1 | > 3 |
| L1498 | 6 | 2 | 1 | 0.8 | 2 |
| L1544-1 | 0.3 | < 0.14 | < 0.14 | < 0.14 | < 0.14 |
| L1544-3 | 0.6 | 0.14 | <0.14 | <0.14 | 0.14 |
| ζ17 = 3, n4 = 100 | |||||
| L1544-1 | 0.6 | 0.2 | <0.14 | <0.14 | <0.14 |
Notes. Predictions from models with n4 = 1 and 10 and ζ17 = 3 are compared to all sources, while models with n4 = 100 are compared to L1544 only. The quoted values are roughly estimated adopting a linear (C/O-dependent) correlation between NS:N2H+ and Sgas from the models. (†)L1544-1 and L1544-3correspond to positions labeled 1 and 3 in Table 2.
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