Table 1
Infall parameters.
 |
 |
 |
 |
 |
 |
|
|---|---|---|---|---|---|---|
| Source | (au) | (109 cm−3) | (km s−1) | (km s−1) | (10−2 M⊙ yr−1) | (10−4 M⊙ yr−1) |
| A | 414 ± 19 | 7.0 ± 1.2 | 1.9 ± 2.7 | 4.0 ± 0.33 | 2.4 ± 3.4 | 0.04–2.5 |
| B | 390 ± 22 | 7.6 ± 1.3 | 1.9 ± 2.7 | 3.7 ± 0.33 | 2.1 ± 3.0 | 0.014–0.9 |
| C | 535 ± 30 | 5.2 ± 1.1 | 2.8 ± 2.7 | 6.0 ± 0.33 | 4.4 ± 4.3 | 0.003–0.2 |
| D | 456 ± 41 | 8.2 ± 2.5 | 1.9 ± 2.7 | 8.3 ± 0.33 | 3.4 ± 4.9 | 0.04–2.7 |
Notes. (a)Estimated from dust continuum observations at 3.5 mm and ~ 0.′′075 resolution by Beltrán et al. (2021). (b)Mean value of the three transitions. (c)Calculated from CH3CN K = 3. (d)Calculated using 
. (e)For infall confined to a solid angle Ω, the infall rate scales linearly with Ω∕(4 π). (f)Estimated from the mass outflow rate assuming a gas temperature of 50 K, an SiO abundance range of 10−8 –10−7 (see Table 2), and a fraction of accreting gas that is launched in the jet in the range 0.1–0.3.
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