Table 5
KeplerFit parameters and dynamical mass estimates.
| Source | MPV (M⊙) | υcont(a) (km s−1) | υfitted(b) (km s−1) | pfitted(c) (au) | pmasked(d) (au) | Best fitted transition |
|---|---|---|---|---|---|---|
| IRAS 23151 | 23 ± 2 | −53.9 | −54.8 | 120 | −400 → 500 | CH3CN (123,4,5−113,4,5) stacked |
| IRAS 23033 MMS 1b | 14 ± 1 | −54.4 | −53.6 | 88 | −400 → 400 | CH3CN (123−113) |
| AFGL2591 | 23 ± 1 | −5.6 | −5.8 | −623 | −1000 → 1000 | CH3CN (123−113) |
| G75.78 | 19 ± 3 | 0.7 | 0.0 | −1078 | −1800 → 2300 | CH3CN (125−115) |
| IRAS 21078 | 13±1 | −6.6 | −6.5 | 100 | −250 → 250 | CH3CN (125−115) |
| G094 | 20 ± 3 | −42.9 | −43.9 | 0 | −500 → 1800 | CH3CN(123−113) |
| CepA | 24 ± 1 | −7.3 | −8.3 | 10 | −500 → 500 | OCS(18−17) |
| NGC 7538IRS9 | 25 ± 3 | −56.7 | −57.1 | 370 | −200 → 700 | HC3N(24−23) |
| W3(H2O)E(*) | 9±1 | −51.0 | −51.3 | 0 | −500 → 500 | CH3CN(124−114) |
| W3(H2O)W(*) | 10±1 | −47.0 | −48.0 | 99 | −∞ → 200 | CH3CN(123−113) |
| IRAS 23385 | 17±2 | −50.7 | −51.0 | 1215 | −1200 → 2000 | HC3N(24−23) |
| Pilot study | ||||||
| NGC 7538IRS1 | 22 ± 2 | −56.0 | −55.1 | 310 | 0 → 900 | C2H5CN(2522,4−2422,3) |
| NGC 7538 S | 12±1 | −60.8 | −60.7 | 0 | −∞ → 950 | CH3CN(125−115) |
Notes. (a)The velocity of the line at the position of the continuum peak. (b)The fitted central velocity in the PV diagram. The central velocity of the PV diagram was initiated at the velocity of the line at the position of the continuum peak (pcont) and allowed to shift ±1 km s−1 in the fitting routine (see dashed horizontal lines in Fig. 4). (c)The fitted central position in the PV diagram. The central position of the PV diagram was initiated at the continuum peak position and allowed to shift ± a synthesised beam in the fitting routine (see dashed vertical lines in Fig. 4). (d)Masked out (i.e. excluded) positions with respect to the fitted position, pfitted (see dotted vertical lines in Fig. 4). (*)Based on A-array observations presented in Ahmadi et al. (2018).
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