Table 3
Comparison of the measured and modeled abundances with respect to the number of protons at three different positions across the PDR front.
| δx | C2H | c-C3H2 | C3H+ | ||||
| [′′] | Measureda | Modeled | Measureda | Modeled | Measuredb | Modeled | |
|
|
|||||||
| Cloud | 24.9 | (0.6−1.9) × 10-9 | 1.2 × 10-10 | (2.2−8.6) × 10-11 | 1.8 × 10-11 | – | 5.0 × 10-14 |
| IR peak | 13.2 | (0.9−2.7) × 10-8 | 2.7 × 10-9 | (0.5−2.6) × 10-9 | 5.7 × 10-12 | (1.9−4.2) × 10-11 | 1.0 × 10-11 |
| IR edge | 7.4 | (0.8−3.7) × 10-8 | 9.7 × 10-10 | (0.4−3.8) × 10-9 | 1.3 × 10-12 | – | 3.7 × 10-12 |
Notes.
(a)
Pety et al. (2005), deduced from observations at ~6′′-resolution.
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