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Table 1
Targets in our sample.
| Sk − | HDE | SpT (revised) | SpT (literature) | (900–1160) | (1150–1700) | (1700–2370) |
|---|---|---|---|---|---|---|
| 66° 171 | 269 889 | O9 Ia | O9 Ia | FUSE | STIS E140M | STIS E230M |
| 68° 155 | – | O9 Ia | B0.5 I | FUSE | COS G130M+G160M | STIS E230M |
| 69° 279 | – | ON9.5 Ia+ | O9.2 Iaf | FUSE | STIS E140M | STIS E230M |
| 71° 41 | – | O9.5 Ib | O9.7 Iab | FUSE | STIS E140M | – |
| 68° 135 | – | ON9.7 Ia+ | ON9.7 Ia+ | FUSE | STIS E140M | STIS E230M |
| 67° 5 | 268 605 | B0 Ib | O9.7 Ib | FUSE | STIS E140M | STIS E230M |
| 68° 52 | 269 050 | B0 Ia | B0 Ia | FUSE | STIS E140M | STIS E230M |
| 69° 43 | 268 809 | B1 Ib | B0.5 Ia | FUSE | STIS E140M | STIS E230M |
| 68° 140 | – | B0.7 Ia | B0.7 Iab | FUSE | COS G130M+G160M | STIS E230M |
| 67° 2 | 270 754 | B1.5 Ia+ | B1 Ia+ | FUSE | STIS E140M | STIS E230M |
| 67° 14, | 268 685 | B1 Ib | B1.5 Ia | FUSE | COS G130M+G160M | STIS E230M |
| 69° 52, | 268 867 | B2 Ia | B2 Ia | FUSE | COS G130M+G160M | STIS E230M |
| 67° 78, | 269 371 | B3 Ia | B3 Ia | FUSE | COS G130M+G160M | STIS E230M |
| 70° 16 | – | B1.5 II | B4 I | – | COS G130M+G160M | COS G185M |
| 68° 8 | 268 729 | B5 Ia+ | B5 Ia+ | – | COS G130M+G160M | STIS E230M |
| 67° 195 | – | B8 Ib | B6 I | – | COS G130M+G160M | STIS E230M |
Notes. The last three columns are the wavelengths (in Å) of the UV ranges and the corresponding instruments that were used for observations. The literature spectral types were adopted from Vink et al. (2023). The revised classifications were adopted from Bestenlehner et al. (2025).
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