Table 2.
Radial velocity measurements for our sample of WNL stars together with an overview of their known multiplicity properties.
| WR# | Spectral type | Binary status |
Period | e | ΔRV | σRV | ΔRV > C | |
|---|---|---|---|---|---|---|---|---|
| (GCWR) | (GCWR) | This work | (d) | (km s−1) | (km s−1) | |||
| 108 | WN9ha | a, d.e.l. | – | – | – | 15.7 | 5.0 | No |
| 120 | WN7o | – | – | – | – | 40.5 | 15.7 | No |
| 123 | WN8o | SB1?, no d.e.l. | SB | – | – | 57.1 | 18.2 | Yes |
| 124 | WN8h | SB1?, no d.e.l. | – | – | – | 19.3 | 5.9 | No |
| 134 | WN6b | SB1?, no d.e.l. | – | – | – | 29.6 | 9.3 | No |
| 136 | WN6b(h) | SB1?, no d.e.l. | – | – | – | 15.4 | 3.0 | No |
| 148 | WN8h+ | SB1, d.e.l. | SB | 4.3 (a) | 0 (fixed) (a) | 171.8 | 54.5 | Yes |
| 153 | WN6o/CE+O3-6 + B0:I+B1:V-III | SB2 + SB2 | SB | 6.6887 (b) + 3.4663 ± 0.0011 | 0.0 (b) + 0.16 ± 0.03 | 576.6 | 150.3 | Yes |
| 155 | WN6o+O9II-Ib | SB2 | SB | 1.6412436 (c) | 0.034 ± 0.008 (c) | 609.5 | 212.0 | Yes |
| 156 | WN8h | d.e.l. | – | – | – | 16.1 | 4.4 | No |
| 158 | WN7h | d.e.l. | – | – | – | 15.0 | 4.1 | No |
Notes.ΔRV and σRV are calculated in this work and are used to identify tentative spectroscopic binaries. The spectral types are taken from the GCWR unless indicated otherwise, with ‘d.e.l.’ implying the dilution of emission lines, and ‘a’ indicating the presence of absorption lines. The binary status of this work is reported based on the spectroscopic observations.
P = 4.317336 ± 0.000026 d (Munoz et al. 2017),
Marchenko et al. (1995) fixed period.
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