Table 5
Infall velocities, mass infall rates, and timescales for the blue excess sources.
| Source | v in10 | Ṁ in10 | τ in10 | v in43 | Ṁ in43 | τ in43 | τ ff | |
| (km s-1) | (10-3 M⊙ yr-1) | (105 yr) | (km s-1) | (10-3 M⊙ yr-1) | (105 yr) | (105 yr) | ||
| | ||||||||
| Diffuse clouds | ||||||||
| G013.28–00.34... | MM1 | 1.09(0.15) | 1.5 | 0.6 | – | – | – | 1.5 |
| G013.97–00.44... | MM1 | 0.31(0.13) | – | – | – | – | – | – |
| Peaked clouds | ||||||||
| G013.91–00.51... | MM1 | 0.69(0.10) | 2.2 | 0.66 | – | – | – | 0.70 |
| G024.94–00.15... | MM1 | 1.34(0.12) | 3.3 | 0.32 | 0.34(0.66) | 0.85 | 1.2 | 0.74 |
| MM2 | 3.00(0.13) | 6.2 | 0.13 | – | – | – | 0.78 | |
| G030.90+00.00... | MM2 | 1.76(0.15) | 9.4 | 0.75 | – | – | – | 1.50 |
| G035.49–00.30... | MM1 | 7.4(0.13) | 16.6 | 0.06 | – | – | – | 0.78 |
| MM2 | 0.84(0.10) | 1.4 | 0.5 | – | – | – | 0.85 | |
| G053.81–00.00... | MM1 | 7.4(0.10) | 9.6 | 0.03 | – | – | – | 0.55 |
| Multiply peaked clouds | ||||||||
| G014.63–00.57... | MM1 | 2.7(0.14) | 22.0 | 0.15 | 1.30(0.35) | 10.6 | 0.30 | 0.38 |
| MM2 | – | – | – | 0.90(0.28) | 2.7 | 0.26 | 0.38 | |
| G017.19+00.81... | MM2 | 0.66(0.20) | 3.1 | 0.46 | – | – | – | 0.42 |
| MM3 | 1.65(0.13) | 2.8 | 0.26 | – | – | – | 0.85 | |
| G018.26–00.24... | MM3 | 6.1(0.18) | 16.0 | 0.08 | – | – | – | 0.80 |
Notes. Columns are (from left to right) source name, infall velocity; mass accretion rate; accretion timescale based on the HCO+(1–0) line, infall velocity; mass accretion rate; accretion timescale based on the HCO+(4–3) line, and free-fall timescale.
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