Table 1
Overview of the targets studied in this paper.
| Object | Inst. | Epochs | Binary status | Previous SpT | New SpT |
|
|
|||||
| WR 20b | UVES | 8 | candidate | WN6ha | WN6ha |
| MSP 18 | UVES | 8 | candidate | O5-5.5 V-III((f)) | O5-5.5 V-III((f)) |
| MSP 44 | UVES | 8 | ecliping | O9.5 V | B1 V + PMS? |
| MSP 96 | UVES | 8 | eclipsing | OB | B1: + B1: |
| MSP 167 | GIRAFFE-ARGUS | 3 | unknown | O6 III | earlier than O6 |
| MSP 171 | GIRAFFE-IFU | 5 | unknown | O4-5 | O4-5 |
| MSP 182 | GIRAFFE-IFU | 5 | unknown | O4 | O4 |
| MSP 183 | GIRAFFE-ARGUS | 3 | unknown | O3 V((f)) | O3 V((f)) |
| MSP 199 | GIRAFFE-ARGUS | 3 | unknown | O3-4 V | O3-4 V |
| MSP 203+444 | GIRAFFE-IFU | 5 | unknown | O6 V-III | O4-5 V |
| MSP 223 | UVES | 8 | eclipsing? | OB | O7-8 |
| A | GIRAFFE-ARGUS | 3 | unknown | – | O8 V |
| B | GIRAFFE-ARGUS | 3 | unknown | – | O6-7 |
| C | GIRAFFE-ARGUS | 3 | unknown | – | O7 V |
| D | GIRAFFE-ARGUS | 3 | unknown | – | O9.5: |
| E | GIRAFFE-ARGUS | 3 | unknown | – | O6-7: |
Notes. The first column lists the designation of the star, the second and third columns yield the instrument and the number of epochs for each target. The last three columns provide the binary status and spectral types prior to our study and the current spectral type (determined in this paper).
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