Table 3
Offset between the CO snowline and the N2H+ column density and J = 4−3 emission peak in the different models.
| Offset | Offset J = 4−3 emission | |||||||
| Model | column density |
|
|
|||||
| (AU) | (AU) | (AU) | ||||||
|
|
||||||||
| CH | 6–18 | 4–53* | 2–50* | |||||
| CH-Eb1 | 5–10 | 2–45* | 8–43 | |||||
| CH-Eb2 | 13–26 | 5–40 | 8–35 | |||||
| CH-CR1 | 10–31 | 12–53 | 12–55 | |||||
| CH-CR2 | 4–17 | 2–50* | 2–53* | |||||
| CH-χ0.8 | 6–2 | 1–28* | 4–22* | |||||
Notes. The CO snowline is located at 19 AU in models CH, CH-CR1 and CH-CR2, at 10 AU in models CH-Eb1 and CH-Eb2, and at 25 AU in models CH-χ0.8. A value of “0” means coincidence with the CO snowline in the respective model. A star (*) indicates models for which the emission peaks inside the snowline for CO abundances ≤ 2 × 10-7.
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