Open Access
Table 7
Column density ratios across the positions observed in NGC1333-C7.
| Position | C7-1 | C7-2 | C7-3 | C7-4 | C7-5 | ||||
|---|---|---|---|---|---|---|---|---|---|
| nH (cm−3) | 1.4 × 105 | 4 × 105 | 106 | 4 × 105 | 106 | 4 × 105 | 106 | 4 × 105 | 106 |
| Deuterium fraction | |||||||||
| D13CN/H13CN | <0.142 | <0.202 | <0.242 | <0.604 | <0.717 | <0.217 | <0.252 | <0.229 | <0.273 |
| DN13C/HN13C | 0.095 ± 0.034 | <0.204 | <0.213 | <0.163 | <0.179 | <0.087 | <0.096 | 0.067 ± 0.024 | 0.074 ± 0.026 |
| DCN/H13CN | 2.25 ± 0.80 | 0.69 ± 0.24 | 0.81 ± 0.29 | 1.80 ± 0.64 | 2.09 ± 0.74 | 1.88 ± 0.67 | 2.17 ± 0.77 | 2.72 ± 0.96 | 3.16 ± 1.12 |
| DNC/HN13C | 3.44 ± 1.21 | 2.58 ± 0.91 | 2.59 ± 0.92 | 3.00 ± 1.06 | 3.12 ± 1.10 | 3.19 ± 1.13 | 3.13 ± 1.10 | 3.53 ± 1.25 | 3.54 ± 1.25 |
| DCN/HCN | (3.17 ± 1.11) × 10−2 | (1.30 ± 0.46) × 10−2 | (1.78 ± 0.63) × 10−2 | (2.05 ± 0.72) × 10−2 | (3.06 ± 0.11) × 10−2 | (1.58 ± 0.56) × 10−2 | (2.70 ± 0.95) × 10−2 | (4.48 ± 1.58) × 10−2 | (6.67 ± 0.24) × 10−2 |
| DNC/HNC | 0.29 ± 0.10 | – | – | – | – | – | – | – | – |
| C and N isotopic ratios | |||||||||
| DCN/D13CN | >15.83 | >3.40 | >3.33 | >2.98 | >2.92 | >8.68 | >8.61 | >11.89 | >11.58 |
| DNC/DN13C | 27.36 ± 12.73 | >11.76 | >9.00 | >18.45 | >13.28 | >30.00 | >21.35 | 34.52 ± 18.65 | 25.39 ± 17.00 |
| HCN/H13CN | 71.05 ± 25.12 | 53.05 ± 18.76 | 45.22 ± 15.99 | 88.00 ± 31.11 | 68.33 ± 24.16 | 119.01 ± 42.08 | 80.25 ± 28.37 | 60.73 ± 21.47 | 47.44 ± 17.78 |
| HNC/HN13C | 11.91 ± 4.21 | – | – | – | – | – | – | – | – |
| HCN/HC15N | 556.70 ± 196.82 | 370.00 ± 130.82 | 331.43 ± 117.18 | 396.00 ± 140.01 | 304.96 ± 107.82 | 551.72 ± 195.06 | 372.61 ± 131.74 | 299.47 ± 105.88 | 235.71 ± 83.34 |
| HNC/H15NC | 46.15 ± 16.32 | – | – | – | – | – | – | – | – |
| H13CN/HC15N | 7.84 ± 2.77 | 6.98 ± 2.47 | 7.33 ± 2.59 | 4.50 ± 1.59 | 4.46 ± 1.58 | 4.64 ± 1.64 | 4.64 ± 1.64 | 4.93 ± 1.74 | 4.97 ± 1.76 |
| HN13C/H15NC | 3.88 ± 1.37 | 3.17 ± 1.12 | 3.06 ± 1.08 | 3.27 ± 1.16 | 3.21 ± 1.14 | 3.87 ± 1.37 | 3.68 ± 1.30 | 4.28 ± 1.51 | 4.13 ± 1.46 |
| Isomeric ratios | |||||||||
| H13CN/HN13C | 1.16 ± 0.41 | 3.49 ± 1.23 | 2.38 ± 0.84 | 1.67 ± 0.59 | 1.14 ± 0.40 | 1.38 ± 0.49 | 0.95 ± 0.34 | 0.85 ± 0.30 | 0.59 ± 0.21 |
| HC15N/H15NC | 0.57 ± 0.20 | 1.58 ± 0.56 | 0.99 ± 0.35 | 1.21 ± 0.43 | 0.82 ± 0.29 | 1.15 ± 0.41 | 0.75 ± 0.27 | 0.74 ± 0.26 | 0.49 ± 0.17 |
| HCN/HNC | 6.92 ± 2.45 | – | – | – | – | – | – | – | – |
| DCN/DNC | 0.76 ± 0.27 | 0.93 ± 0.33 | 0.74 ± 0.26 | 1.00 ± 0.35 | 0.76 ± 0.27 | 0.81 ± 0.29 | 0.66 ± 0.23 | 0.66 ± 0.23 | 0.53 ± 0.19 |
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