Open Access
Table 4
Hydrogen number density and CH3OH column density in IC 348.
| Offset (″) | Av (mag)(1) | Tdust (K)(2) | Gas density nH2 (cm-3) | N(A-CH3OH) (cm-2) | N(E-CH3 OH) (cm-2) | N(CH3OH) (cm-2) | N(CH3OH)/N(H) | E/A Ratio |
|---|---|---|---|---|---|---|---|---|
| 30 | 24.0 | 17.5 | (4 ± 1) × 105 | (9 ± 2) × 1012 | (9 ± 2) × 1012 | (1.9 ± 0.3) × 1013 | (4.2 ± 0.7) × 10-10 | 1.0 ± 0.3 |
| 45 | 23.1 | 17.6 | (2.5 ± 0.6) × 105 | (6 ± 1) × 1012 | (8 ± 2) × 1012 | (1.4 ± 0.2) × 1013 | (3.3 ± 0.5) × 10-10 | 1.3 ± 0.4 |
| 60 | 20.0 | 17.7 | (3 ± 1) × 105 | (9 ± 2) × 1012 | (9 ± 4) × 1012 | (1.8 ± 0.4) × 1013 | (5 ± 1) × 10-10 | 1.0 ± 0.5 |
| 75 | 17.6 | 17.9 | (2.7 ± 0.7) × 105 | (8 ± 2) × 1012 | (7 ± 2) × 1012 | (1.5 ± 0.2) × 1013 | (4.5 ± 0.7) × 10-10 | 0.9 ± 0.3 |
| 90 | 14.0 | 18.0 | (1.7 ± 0.6) × 105 | (5 ± 1) × 1012 | (4 ± 1) × 1012 | (9 ± 2) × 1012 | (3.5 ± 0.6) × 10-10 | 0.9 ± 0.3 |
| 105 | 11.2 | 18.1 | (8 ± 4) × 104 | (3.1 ± 0.6) × 1012 | (2 ± 1) × 1012 | (6 ± 1) × 1012 | (2.6 ± 0.7) × 10-10 | 0.8 ± 0.5 |
| 120 | 10.1 | 18.2 | (9 ± 5) × 104 | (2.3 ± 0.5) × 1012 | (1.8 ± 0.9) × 1012 | (4 ± 1) × 1012 | (2.2 ± 0.5) × 10-10 | 0.8 ± 0.4 |
| 135 | 9.4 | 18.3 | (5 ± 2) × 104 | (1.4 ± 0.3) × 1012 | (1.1 ± 0.3) × 1012 | (2.6 ± 0.4) × 1012 | (1.4 ± 0.2) × 10-10 | 0.8 ± 0.3 |
| 150 | 8.7 | 18.6 | (4 ± 2) × 104 | (7 ± 2) × 1011 | (5 ± 1) × 1011 | (1.2 ± 0.2) × 1012 | (8 ± 1) × 10-11 | 0.7 ± 0.3 |
| 165 | 8.3 | 18.8 | (3 ± 1) × 104 | (3 ± 1) × 1011 | (3 ± 1) × 1011 | (6 ± 2) × 1011 | (4 ± 1) × 10-11 | 0.8 ± 0.4 |
| 180 | 8.1 | 18.9 | (2 ± 1) × 104 | (5 ± 2) × 1011 | (4 ± 2) × 1011 | (9 ± 2) × 1011 | (6 ± 2) × 10-11 | 0.9 ± 0.5 |
| 195 | 8.1 | 19.1 | (1.7 ± 0.8) × 104 | (3 ± 1) × 1011 | (3 ± 1) × 1011 | (6 ± 2) × 1011 | (4 ± 1) × 10-11 | 0.9 |
| 210 | 7.5 | 19.2 | (1.4 ± 0.7) × 104 | (3 ± 1) × 1011 | (2 ± 1) × 1011 | (5 ± 1) × 1011 | (4 ± 1) × 10-11 | 0.9 |
| 225 | 7.1 | 19.2 | (1.2 ± 0.6) × 104 | <7 × 1011 | <6 × 1011 | <1 × 1012 | <1 × 10-10 | — |
| 240 | 6.7 | 19.3 | (1.1 ± 0.5) × 104 | <1 × 1012 | <8 × 1011 | <2 × 1012 | <2 × 10-10 | — |
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