Table 7
Overview of mass estimates and Toomre Q results.
| Source | Mgas (M⊙) | MPV(a) (M⊙) | Mium(b) (M⊙) | M*(c) (M⊙) | Qmin | Qmedian |  |
Toomre stable |
|---|---|---|---|---|---|---|---|---|
| IRAS 23151 | 3.6 | 23 ± 2 | 24 | 24 | 1.2 | 4.4 | 0.16 | No |
| IRAS 23033 MMS 1b | 3.9 | 14±1 | 21 | 0.5 | 2.0 | 0.15 | No | |
| AFGL2591 | 6.2 | 23 ± 1 | 40 | 24 | 1.2 | 2.7 | 0.21 | No |
| G75.78 | 8.1 | 19±3 | 34 | 22 | 0.3 | 2.1 | 0.23 | No |
| IRAS 21078 | 3.3 | 13±1 | 19 | 14 | 0.4 | 3.3 | 0.23 | No |
| G094 | 3.0 | 20 ± 3 | 25 | 23 | 0.8 | 6.4 | 0.23 | No |
| CepA | 0.6 | 24 ± 1 | 21 | 21 | 5.1 | 11.9 | 0.17 | Yes |
| NGC 7538IRS9 | 1.2 | 25 ± 3 | 24 | 24 | 4.4 | 15.0 | 0.24 | Yes |
| W3(H2O)E | 9.4 | 9±1 | 33 | 10(†) | 0.1 | 0.9 | 0.23 | No |
| W3(H2O)W | 7.0 | 10±1 | 33 | 11(†) | 0.1 | 1.0 | 0.23 | No |
| IRAS 23385 | 19.1 | 17±2 | 21 | 9(‡) | 0.1 | 0.9 | 0.25 | No |
| Pilot study | ||||||||
| NGC 7538IRS1 | 31.7 | 22 ± 2 | 41 | 24 | 0.3 | 0.7 | 0.16 | No |
| NGC 7538 S | 1.8 | 12±1 | 21 | 13 | 0.9 | 4.2 | 0.26 | No |
Notes. (a)Dynamical mass estimates from fitting Keplerian curves to the 6σ edges of emission in the PV diagrams shown in Fig. 4 (see Sect. 5.3.) (b)Luminosity mass extrapolated from Table 1 of Crowther (2005) using luminosities reported in Table 1. (c)Protostellar mass used in the Toomre Q analysis. (d)Median ratio of disk scale height to radius. (*)Based on Bosco et al. (2019) using data from the CORE survey. (†)Based on A-array observations presented in Ahmadi et al. (2018) using data from the CORE survey. (‡)Based on Cesaroni et al. (2019) using data from the CORE survey.
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