Table 2
Derived orbital parameters for the WR binary A+B.
| Parameter | Our resultsa | Foellmi et al. (2003) |
|---|---|---|
| Porb [days] | 6.53840 ± 0.00004 | 6.5364 ± 0.0007 |
| E0 [MJD] | 51924.17 ± 0.08b | 51920.9 ± 0.2c |
| KWR [km s−1] | 243 ± 4 | 290 ± 10 |
| KO [km s−1] | 109 ± 4 | 66 ± 10 |
| e | 0d (fixed) | 0.10 ± 0.03 |
 |
n/a | 103 ± 20 |
| MWR sin3i [M⊙] | 9.2 ± 0.5 | 5.6 ± 0.4 |
| MO sin3i [M⊙] | 20.4 ± 0.9 | 24.5 ± 1.6 |
| q = MO∕MWR | 2.2 ± 0.1 | 4.4 ± 0.4 |
| aWR sini [R⊙] | 31.5 ± 0.5 | 37.5 ± 1.3 |
| aO sini [R⊙] | 14.1 ± 1.1 | 8.5 ± 1.3 |
| V0 [km s−1] | 196 ± 4 | 199 ± 3 |
| i [°] |  |
65 ± 7f |
| Morb, WR [M⊙] |  |
7.5 ± 1.5 |
| Morb, O [M⊙] |  (adopted)g |
33 ± 6 |
| aWR [R⊙] | 40 ± 10 | 43 |
| aO [R⊙] | 18 ± 5 | 10 |
| RRL, WR [R⊙] | 18 ± 3 | 13 ± 2 |
| RRL, O [R⊙] | 26 ± 5 | 26 ± 10 |
Notes. (a) P obtained from the He IIλ4686 fit (left panel of Fig. 5). The remaining parameters are obtained from the N V fit (right panel of Fig. 5). (b) Defined so that ϕ = 0 is at inferior WR conjunction (WR star in front of O star). (c)Time of periastron passage. (d)Formal fit yielded e = 0.03 ± 0.02. (e) Implied from M2 sin3i by adopting M2 = 41±10 M⊙. (f) From unpublished polarimetric data. (g)From calibration with evolutionary masses (see text.)
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.