Table 7
Spectrophotometric distances of individual early-type stars.
| ID | K s o | A K s | Spectral | Class | MK(I)b | MK(III)b | MK(V)b | DM Ia | DM IIIIa | DM Va | Region | ||
| [mag] | [mag] | [mag] | [mag] | [mag] | [mag] | [mag] | [mag] | ||||||
|
|
|||||||||||||
| 16 | 7.50 | 1.68 | O9-9.5e | I | –5.39 ± 0.83 | –4.47 ± 0.65 | –3.30 ± 0.76 | 12.89 ± 0.83 | 11.97 ± 0.65 | 10.80 ± 0.76 | REG4 | ||
| 15 | 7.93 | 1.59 | O6-7fK+ | I | –5.28 ± 0.66 | –4.84 ± 0.57 | –3.99 ± 0.65 | 13.21 ± 0.66 | 12.77 ± 0.57 | 11.92 ± 0.65 | GLIMPSE9 | ||
| 36 | 8.13 | 1.93 | O6-7fK+ | I | –5.28 ± 0.66 | –4.84 ± 0.57 | –3.99 ± 0.65 | 13.41 ± 0.66 | 12.97 ± 0.57 | 12.12 ± 0.65 | REG4 | ||
| 4 | 8.26 | 1.62 | O7-8.5fK+ | I | –5.39 ± 0.83 | –4.66 ± 0.61 | –3.63 ± 0.71 | 13.65 ± 1.17 | 12.92 ± 1.02 | 11.89 ± 1.08 | GLIMPSE9 | ||
| 14 | 8.32 | 1.86 | O6-7fK+ | I | –5.28 ± 0.66 | –4.84 ± 0.57 | –3.99 ± 0.65 | 13.60 ± 0.66 | 13.16 ± 0.57 | 12.31 ± 0.65 | GLIMPSE9 | ||
| 18 | 8.41 | 1.55 | O6-7fK+ | I | –5.28 ± 0.66 | –4.84 ± 0.57 | –3.99 ± 0.65 | 13.69 ± 0.66 | 13.25 ± 0.57 | 12.40 ± 0.65 | REG4 | ||
| 25 | 8.57 | 1.34 | O4fK+ | I | –5.16 ± 0.63 | –5.05 ± 0.63 | –4.41 ± 0.78 | 13.73 ± 0.63 | 13.62 ± 0.63 | 12.98 ± 0.78 | REG7 | ||
| 5 | 8.65 | 1.73 | O6-7fK+ | III | –5.28 ± 0.66 | –4.84 ± 0.57 | –3.99 ± 0.65 | 13.93 ± 0.66 | 13.49 ± 0.57 | 12.64 ± 0.65 | GLIMPSE9 | ||
| 9 | 8.65 | 1.75 | O7-8.5fK+ | III | –5.39 ± 0.83 | –4.66 ± 0.61 | –3.63 ± 0.71 | 14.04 ± 0.84 | 13.31 ± 0.62 | 12.28 ± 0.72 | GLIMPSE9 | ||
| 3 | 8.85 | 1.90 | O6-7fK+ | III | –5.28 ± 0.66 | –4.84 ± 0.57 | –3.99 ± 0.65 | 14.13 ± 0.66 | 13.69 ± 0.57 | 12.84 ± 0.65 | GLIMPSE9 | ||
| 23 | 9.04 | 1.39 | O6-7fK+ | III | –5.28 ± 0.66 | –4.84 ± 0.57 | –3.99 ± 0.65 | 14.32 ± 0.66 | 13.88 ± 0.57 | 13.03 ± 0.65 | REG4 | ||
| 17 | 9.21 | 1.37 | O9-9.5fK+ | III | –5.39 ± 0.83 | –4.47 ± 0.65 | –3.30 ± 0.76 | 14.60 ± 0.83 | 13.68 ± 0.65 | 12.51 ± 0.76 | REG4 | ||
|
|
|||||||||||||
| [MFD2010] 3 | 6.48 | 1.48 | B0-3 | I | –6.27 ± 0.92 | –3.47 ± 1.43 | –2.38 ± 1.27 | 12.75 ± 0.97 | 9.95 ± 1.46 | 8.86 ± 1.30 | GLIMPSE9 | ||
| [MFD2010] 4 | 7.48 | 1.66 | B0-3 | I | –6.27 ± 0.92 | –3.47 ± 1.43 | –2.38 ± 1.27 | 13.75 ± 0.92 | 10.95 ± 1.43 | 9.86 ± 1.27 | GLIMPSE9 | ||
| 6 | 9.02 | 1.51 | B0-3 | III | –6.49 ± 1.14 | –3.47 ± 1.43 | –2.38 ± 1.27 | 15.51 ± 1.15 | 12.49 ± 1.43 | 11.40 ± 1.27 | GLIMPSE9 | ||
| 31 | 9.05 | 1.26 | B0-3 | III | –6.49 ± 1.14 | –3.47 ± 1.43 | –2.38± 1.27 | 15.54 ± 1.14 | 12.52 ± 1.43 | 11.43 ± 1.27 | REG2 | ||
| 38 | 9.37 | 1.13 | B0-3 | III | –6.49 ± 1.14 | –3.47 ± 1.43 | –2.38± 1.27 | 15.86 ± 1.14 | 12.84 ± 1.43 | 11.75 ± 1.27 | REG4 | ||
| 21 | 9.64 | 1.11 | B7.5-A2 | III | –7.04 ± 0.65 | – | –0.41 ± 1.25 | 16.68 ± 0.65 | – | 10.05 ± 1.25 | REG4 | ||
| 8 | 10.34 | 1.67 | B0-3 | III | –6.49 ± 1.14 | –3.47 ± 1.43 | –2.38± 1.27 | 16.83 ± 1.14 | 13.81 ± 1.43 | 12.72 ± 1.27 | GLIMPSE9 | ||
|
|
|||||||||||||
| 2 | 6.10 | 0.51 | O9-9.5e | I | –5.39 ± 0.83 | –4.47 ± 0.65 | –3.30 ± 0.76 | 11.49 ± 0.83 | 10.57 ± 0.65 | 9.40 ± 0.76 | – | ||
| 19 | 9.94 | 0.42 | B4-A2 | V | –7.04 ± 0.65 | – | –0.41 ± 1.25 | 16.98 ± 0.65 | – | 10.35 ± 1.25 | REG5 | ||
| 12 | 10.07 | 0.32 | B4-A2 | V | –7.04 ± 0.65 | – | –0.41 ± 1.25 | 17.11 ± 0.65 | – | 10.48 ± 1.25 | REG5 | ||
| 13 | 10.08 | 0.29 | B4-A2 | V | –7.04 ± 0.65 | – | –0.41 ± 1.25 | 17.12 ± 0.65 | – | 10.49 ± 1.25 | REG5 | ||
| 32 | 10.19 | 0.37 | B4-A2 | V | –7.04 ± 0.65 | – | –0.41 ± 1.25 | 17.23 ± 0.65 | – | 10.60 ± 1.25 | REG5 | ||
| 26 | 10.42 | 0.31 | B4-A2 | V | –7.04 ± 0.65 | – | –0.41 ± 1.25 | 17.46 ± 0.65 | – | 10.83 ± 1.25 | REG5 | ||
| 28 | 10.48 | 0.30 | B4-A2 | V | –7.04 ± 0.65 | – | -0.41 ± 1.25 | 17.52 ± 0.65 | – | 10.89 ± 1.25 | REG5 | ||
| 7 | 10.54 | 0.42 | B4-A2 | V | –7.04 ± 0.65 | – | –0.41 ± 1.25 | 17.58 ± 0.65 | – | 10.95 ± 1.25 | REG5 | ||
| 20 | 11.95 | 0.47 | B4-A2 | V | –7.04 ± 0.65 | – | –0.41 ± 1.25 | 18.99 ± 0.65 | – | 12.36 ± 1.25 | REG4 | ||
Notes. Identification numbers from Table 2 are followed by de-reddened Ks, (Kso), AKs, spectral types, estimated luminosity classes, absolute magnitudes in the Ks-band for class I, III, V, distances, and regions. The table lists O-type stars with AKs> 0.8 mag, then B-stars with AKs> 0.8 mag, and finally star with AKs< 0.8 mag. Each block is ordered by de-reddened Ks.
Quoted errors on MK are calculated by assuming an error of 0.5 mag on a single type (e.g. Bibby et al. 2008; Humphreys & McElroy 1984). Note that the quoted MK values are used to derive spectrophotometric DMs. Later, in Table 9, we will assume a common distance and recalculate MK and Mbol .
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