Table 3
[O I] 63, 145 µm and FIR CO line luminosities toward the central emission (a size of ∼0.2 pc) of several high-mass star-forming regions.
| Source | Lbol (L⊙)a | d (kpc)a | LOI (L⊙) | LCO(PACS) (L⊙) | LCII (L⊙) | LOI/Lbol | LCO(PACS)/Lbol | I63/I158 (total line profile) |
|---|---|---|---|---|---|---|---|---|
| NGC7538-IRS1 | 1.1E+05 | 2.7 | 11d | 1.8d | 2.0d | 1.0E-04 | 1.6E-05 | ∼5d |
| W3-IRS5 | 2.1E+05 | 2.0 | 4.2d | 10.5d | 1.5e | 2.0E-05 | 5.0E-05 | ∼3e |
| DR21 (G81.7+0.6)† | 1.3E+04 | 1.5 | ≳10b | 1.2d | 2.5b | ≳7.7E-04 | 9.2E-05 | ∼5b |
| W28A (G5.89-0.39)† | 4.1E+04 | 1.3 | 5.7c | 3.9d | 0.42c | 1.4E-04 | 9.5E-05 | ∼13c |
| Orion BN/KL† | 1.1E+05 | 0.4 | 86.5 | 64f | 5.8 | 7.9E-04 | 5.8E-04 | ∼14 (map), ∼23 (Peak 1) |
Notes. [O I] 63, 145 µm, and [C II] 158µm, and CO line luminosities for the small sample of massive sources observed with Herschel/PACS that exhibit clear [O I] 63 µm line emission spectra (Karska et al. 2014), that is, with little contribution from foreground absorption (Gerin et al. 2015). †Hosts an explosive outflow. aFrom van der Tak et al. (2013), Karska et al. (2014), and references therein. bEstimated from SOFIA/FIFI-LS (Karska et al. 2025). cFrom SOFIA/GREAT velocity-resolved observations (Leurini et al. 2015). dFrom PACS observations toward the central spaxel (Karska et al. 2014). eFrom PACS observations toward the central spaxel (Gerin et al. 2015). f From PACS maps (Goicoechea et al. 2015a).
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