Table 2
Estimation of the systemic velocity, the mean velocity gradient amplitude and its orientation from linear gradient fit of centroid velocity maps in C18O and N2H+ emission from the PdBI, the combined, and the 30m datasets for the CALYPSO sample sources.
| Source | Line | PdBI | PdBI+30m | 30m | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| G | v0 | Θ(a) | ΔΘ(b) | G | v0 | Θ(a) | ΔΘ(b) | G | v0 | Θ(a) | ΔΘ(b) | ||
| (km s−1 pc−1) | (km s−1) | (°) | (°) | (km s−1 pc−1) | (km s−1) | (°) | (°) | (km s−1 pc−1) | (km s−1) | (°) | (°) | ||
| L1448-2A | C18O (2-1) | 118 ± 3 | 4.06 ± 0.03 | 107 ± 2 | 69 | 13 ± 2 | 4.05 ± 0.04 | 81 ± 1 | 43 | 6 ± 1 | 4.12 ± 0.02 | −14 ± 2 | 52 |
| N2H+ (1-0) | 19 ± 1 | 4.09 ± 0.03 | −89 ± 2 | 53 | 2 ± 1 | 4.10 ± 0.04 | −177 ± 21 | 35 | 2 ± 1 | 4.16 ± 0.04 | −8 ± 3 | 46 | |
| L1448-NB | C18O (2-1) | 214 ± 1 | 4.71 ± 0.06 | 51 ± 1 | 41 | 75 ± 1 | 4.55 ± 0.05 | 50 ± 1 | 40 | 6 ± 1 | 4.45 ± 0.02 | 85 ± 4 | 75 |
| N2H+ (1-0) | 108 ± 1 | 4.55 ± 0.02 | 74 ± 1 | 64 | 13 ± 1 | 4.57 ± 0.02 | 100 ± 1 | 90 | 4 ± 1 | 4.51 ± 0.01 | 97 ± 1 | 87 | |
| L1448-C | C18O (2-1) | 218 ± 4 | 5.13 ± 0.05 | −119 ± 2 | 12 | 62 ± 1 | 5.03 ± 0.05 | −138 ± 1 | 31 | – | – | – | – |
| N2H+ (1-0) | 15 ± 2 | 4.92 ± 0.03 | −175 ± 4 | 68 | 13 ± 1 | 4.97 ± 0.03 | −179 ± 1 | 72 | 7 ± 1 | 4.85 ± 0.01 | −152 ± 1 | 45 | |
| IRAS2A | C18O (2-1) | 150 ± 5 | 7.75 ± 0.08 | 101 ± 2 | 14 | 17 ± 1 | 7.63 ± 0.06 | 97 ± 3 | 18 | 3 ± 1 | 7.66 ± 0.01 | −10 ± 1 | 55 |
| N2H+ (1-0) | 11 ± 1 | 7.57 ± 0.04 | −20 ± 6 | 45 | 4 ± 1 | 7.64 ± 0.03 | 20 ± 4 | 85 | 5 ± 1 | 7.61 ± 0.01 | −5 ± 1 | 60 | |
| SVS13-B | C18O (2-1) | – | – | – | – | 28 ± 4 | 8.19 ± 0.08 | 89 ± 10 | 12 | 7 ± 1 | 8.15 ± 0.02 | −33 ± 1 | 70 |
| N2H+ (1-0) | 16 ± 1 | 8.48 ± 0.03 | 74 ± 1 | 3 | 5 ± 1 | 8.31 ± 0.02 | 16 ± 4 | 61 | 7 ± 1 | 8.07 ± 0.02 | −4 ± 1 | 81 | |
| IRAS4A | C18O (2-1) | 105 ± 1 | 6.57 ± 0.04 | −79 ± 1 | 11 | 18 ± 4 | 6.72 ± 0.06 | −80 ± 17 | 10 | 1.2 ± 0.4 | 7.57 ± 0.04 | 8 ± 13 | 82 |
| N2H+ (1-0) | 43 ± 1 | 6.85 ± 0.05 | −69 ± 1 | 21 | 7 ± 1 | 6.90 ± 0.06 | 37 ± 2 | 53 | 3 ± 1 | 7.48 ± 0.02 | 51 ± 1 | 39 | |
| IRAS4B | C18O (2-1) | 65 ± 1 | 6.84 ± 0.03 | −89 ± 1 | 14 | 52 ± 5 | 6.89 ± 0.06 | −83 ± 8 | 20 | – | – | – | – |
| N2H+ (1-0) | 25 ± 2 | 6.94 ± 0.04 | 96 ± 6 | 19 | 3 ± 1 | 7.06 ± 0.05 | −71 ± 14 | 32 | 3 ± 1 | 7.47 ± 0.02 | 51 ± 5 | 27 | |
| IRAM04191 | C18O (2-1) | – | – | – | – | 25 ± 2 | 6.62 ± 0.07 | −42 ± 5 | 28 | 6 ± 1 | 6.59 ± 0.01 | 96 ± 1 | 14 |
| N2H+ (1-0) | 11 ± 2 | 6.76 ± 0.05 | 109 ± 3 | 1 | 15 ± 1 | 6.64 ± 0.03 | 92 ± 1 | 18 | 3 ± 1 | 6.61 ± 0.01 | 124 ± 1(⋆) | 14 | |
| L1521F | C18O (2-1) | – | – | – | – | 16 ± 1 | 6.57 ± 0.04 | −82 ± 2 | 52 | 2 ± 1 | 6.49 ± 0.01 | −8 ± 1 | 22 |
| N2H+ (1-0) | 26 ± 2 | 6.67 ± 0.04 | −76 ± 5 | 46 | 0.7 ± 0.1 | 6.48 ± 0.01 | −49 ± 2 | 19 | 0.4 ± 0.1 | 6.47 ± 0.01 | 6 ± 2 | 36 | |
| L1527 | C18O (2-1) | 171 ± 5 | 5.91 ± 0.06 | −9 ± 3 | 9 | 66 ± 1 | 5.84 ± 0.06 | 22 ± 2 | 22 | 2 ± 1 | 5.94 ± 0.01 | 113 ± 1 | 67 |
| N2H+ (1-0) | 17 ± 1 | 5.87 ± 0.03 | 9 ± 6 | 9 | 3 ± 1 | 5.91 ± 0.02 | 26 ± 5 | 26 | 2 ± 1 | 5.91 ± 0.01 | 123 ± 4 | 57 | |
| L1157 | C18O (2-1) | 104 ± 3 | 2.61 ± 0.06 | 13 ± 2 | 60 | 68 ± 2 | 2.63 ± 0.06 | 35 ± 2 | 38 | 2 ± 1 | 2.70 ± 0.15 | −125 ± 8 | 18 |
| N2H+ (1-0) | 51 ± 2 | 2.82 ± 0.04 | 35 ± 2 | 38 | 0.8 ± 0.4 | 2.69 ± 0.02 | 113 ± 65 | 40 | 1.0 ± 0.5 | 2.65 ± 0.04 | −131 ± 35 | 24 | |
| GF9-2 | C18O (2-1) | 126 ± 17 | −3.01 ± 0.06 | −154 ± 4 | 64 | 17 ± 1 | −2.83 ± 0.03 | −133 ± 5 | 43 | 2 ± 1 | −2.62 ± 0.01 | 102 ± 1 | 12 |
| N2H+ (1-0) | 18 ± 3 | −2.80 ± 0.01 | −123 ± 8 | 33 | 1.4 ± 0.1 | −2.56 ± 0.01 | −9 ± 5 | 81 | 0.5 ± 0.1 | −2.56 ± 0.01 | 40 ± 8 | 50 | |
Notes. (a) Position angle of the redshifted lobe of the velocity gradient defined from north to east. (b) Absolute value, between 0° and 90°, of the difference between the angle of the mean gradient and the angle of the equatorial axis. The equatorial axis is defined perpendicularly to the direction of the outflows (see Table 1). (⋆) For IRAM04191, the N2H+ emission in the 30m dataset was fit ignoring the pixels close to the Class I protostar IRAS 04191 in the field of view (see Appendix H).
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