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Table 2
Characteristics of the CO lines. CO(2 − 1) (resp. CO(2 − 1)) spectra are reduced to a 2.6 kms-1 (resp. 3.2 kms-1) resolution.
| Position | 12CO Line | ICO (K km s-1) = | V0 (km s-1) | σ (km s-1) | Tpeak | Baseline | NH2 (cm-2) | ΣH2 |
| (beam size) |
|
(mK) | rms | (M⊙ pc-2) | ||||
| (mK) | ||||||||
|
|
||||||||
| M 31A | 1−0 (24″) | 0.75 ± 0.03 | −154.9 ± 0.6 | 28.7 ± 1.3 | 24.8 | 2.1 | 1.73 × 1020 | 2.94 |
| 2−1 (24″) | 0.88 ± 0.06 | −151.1 ± 0.7 | 22.9 ± 1.9 | 35.7 | 4.7 | − | ||
| 1−0 (21″) | 0.72 ± 0.04 | −153.6 ± 0.7 | 28.7 ± 1.7 | 23.7 | 2.4 | 1.67 × 1020 | 2.83 | |
| 2−1 (11″) | 0.78 ± 0.06 | −152.8 ± 1.0 | 24.9 ± 2.6 | 29.4 | 5.5 | − | ||
| M 31C | 1−0 (24″) | − | − | − | − | 3.7 | <2.55 × 1021 | <43.31 |
| 2−1 (24″) | − | − | − | − | 7.8 | − | ||
| M 31D | 1−0 (24″) | 2.43 ± 0.10 | −74.3 ± 0.4 | 23.7 ± 1.2 | 96.4 | 7.2 | 5.58 × 1020 | 9.49 |
| 2−1 (24″) | 3.45 ± 0.16 | −73.2 ± 0.5 | 19.7 ± 1.1 | 164.6 | 15.5 | − | ||
| 1−0 (21″) | 2.47 ± 0.11 | −74.9 ± 0.5 | 23.6 ± 1.4 | 98.0 | 8.7 | 5.68 × 1020 | 9.66 | |
| 2−1 (11″) | 2.12 ± 0.12 | −74.9 ± 0.6 | 21.1 ± 1.4 | 93.8 | 10.6 | − | ||
| M 31Ea | 1−0 (21″) | 0.18 ± 0.04 | −132.2 ± 1.9 | 15.8 ± 3.1 | 10.5 | 4.1 | 4.25 × 1019 | 0.72 |
| 2−1 (11″) | 0.33 ± 0.10 | −128.2 ± 3.1 | 15.3 ± 6.9 | 19.4 | 13.1 | − | ||
| M 31F | 1−0 (21″) | 1.56 ± 0.14 | −360.6 ± 3.3 | 68.0 ± 6.7 | 20.6 | 6.4 | 3.59 × 1020 | 6.11 |
| 2−1 (11″) | − | − | − | − | 16.3 | − | ||
| M 31G | 1−0 (24″) | 2.98 ± 0.18 | −147.4 ± 0.4 | 13.6 ± 1.0 | 205.9 | 4.9 | 6.86 × 1020 | 11.66 |
| 2−1 (24″) | 2.39 ± 0.14 | −146.7 ± 0.5 | 15.4 ± 1.1 | 145.2 | 9.8 | − | ||
| 1−0 (21″) | 3.01 ± 0.23 | −146.7 ± 0.6 | 15.3 ± 1.4 | 185.2 | 5.3 | 6.92 × 1020 | 11.77 | |
| 2−1 (11″) | 2.18 ± 0.20 | −146.6 ± 0.9 | 18.5 ± 1.9 | 110.6 | 15.9 | − | ||
| M 31GB | 1−0 (21″) | − | − | − | − | 7.7 | <5.29 × 1021 | <89.95 |
| 2−1 (11″) | − | − | − | − | 14.7 | − | ||
| M 31I | 1−0 (21″) | 3.22 ± 0.11 | −148.5 ± 0.2 | 9.3 ± 0.4 | 324.3 | 12.5 | 7.41 × 1020 | 12.60 |
| 1−0 (21″) | 4.60 ± 0.77 | −411.9 ± 1.0 | 34.1 ± 3.1 | 126.8 | 12.5 | 1.06 × 1021 | 17.99 | |
| 1−0 (21″) | 2.50 ± 0.31 | −278.7 ± 2.6 | 46.3 ± 5.4 | 50.7 | 12.5 | 5.75 × 1020 | 9.77 | |
| 1−0 (21″) | 3.69 ± 0.89 | −376.4 ± 11.1 | 88.5 ± 16.5 | 39.2 | 12.5 | 8.49 × 1020 | 14.44 | |
| 2−1 (11″) | 3.28 ± 0.12 | −148.6 ± 0.2 | 7.7 ± 0.4 | 400.9 | 29.0 | − | ||
| 2−1 (11″) | 7.28 ± 0.47 | −409.5 ± 1.3 | 40.0 ± 3.5 | 171.0 | 29.0 | − | ||
| 2−1 (11″) | 4.04 ± 0.47 | −283.4 ± 2.7 | 43.5 ± 5.0 | 87.7 | 29.0 | − | ||
| 2−1 (11″) | 2.96 ± 0.41 | −353.3 ± 5.7 | 46.6 ± 4.5 | 59.6 | 29.0 | − | ||
| M 31J | 1−0 (21″) | 12.81 ± 0.33 | −413.2 ± 0.2 | 33.3 ± 0.8 | 361.4 | 12.2 | 2.95 × 1021 | 50.08 |
| 1−0 (21″) | 1.06 ± 0.11 | −145.5 ± 0.6 | 11.9 ± 1.5 | 83.8 | 12.2 | 2.45 × 1020 | 4.16 | |
| 1−0 (21″) | 7.34 ± 0.57 | −350.1 ± 7.5 | 178.2 ± 13.2 | 38.8 | 12.2 | 1.69 × 1021 | 28.70 | |
| 2−1 (11″) | 15.22 ± 0.78 | −412.7 ± 0.9 | 35.1 ± 2.0 | 407.0 | 54.5 | − | ||
| 2−1 (11″) | 0.86 ± 0.41 | −142.1 ± 3.0 | 9.0 ± 5.2 | 88.5 | 54.5 | − | ||
| 2−1 (11″) | 1.94 ± 0.69 | −268.6 ± 7.1 | 35.4 ± 10.8 | 51.4 | 54.5 | − | ||
| M 31K | 1−0 (21″) | 2.66 ± 0.14 | −300.8 ± 1.1 | 41.7 ± 2.9 | 59.8 | 7.5 | 6.11 × 1020 | 10.38 |
| 2−1 (11″) | 2.61 ± 0.43 | −292.5 ± 4.9 | 58.5 ± 11.0 | 42.0 | 24.1 | − | ||
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