Table 2
Parameters of the eclipsing pair in the δ Velorum system.
| BF fitting | ROCHE | ||
| Assumed parameters | |||
|
|
|||
| P | [days] | 45.15023(7) | 45.15023(7) |
| βAa = βAb | – | 0.25 | |
| AAa = AAb | – | 1.00 | |
| π | [mas] | – | 40.90(38) |
| L3 = lB/(lAa + lAb) | – | 0.048 | |
|
[K] | – | 9420 |
|
|
|||
| Optimized parameters | |||
| T0 | [HJD] | 529.185(11) | 528.950(5) |
| e | 0.2899(16) | 0.2881(8) | |
| i | [deg] | – | 89.00(3) |
| ω | [deg] | 112.43(16) | 109.69(5) |
| ΩAa | – | 34.3(4) | |
| ΩAb | – | 35.7(4) | |
| FAa | – | 43.2(7) | |
| FAb | – | 50.3(9) | |
| q = MAb/MAa | 0.938(11) | 0.937(10) | |
| KAa + KAb | [km s-1] | 104.8(2) | 106.0(15) |
| VA | [km s-1] | −12.07(5) | −10.4(5) |
| vsiniAa | [km s-1] | 139.48(10) | 139.4 |
| vsiniAb | [km s-1] | 146.84(13) | 146.5 |
 (LC) |
– | 0.852 | |
| (BF) |
2.710 | 1.945 | |
|
|
|||
| Computed parameters | |||
| Asini | [R⊙] | 89.5(2) | 90.6(9) |
| MAasin3i | [M⊙] | 2.44(2) | 2.53(11) |
| MAbsin3i | [M⊙] | 2.29(2) | 2.37(10) |
| LAa | [L⊙] | – | 56.3(17) |
| LAb | [L⊙] | – | 47.1(25) |
| lAb/lAa | 0.813(3) | 0.822(4) | |
| R Aa | [R⊙] | – | 2.83(4) |
| RAb | [R⊙] | – | 2.54(5) |
| log gAa | [cgs] | – | 3.90(2) |
| log gAb | [cgs] | – | 3.97(3) |
Notes. In both cases (rotational profile fitting to BFs, Sect. 3.2, and full ROCHE modelling, Sect. 3.3), the orbital period, P, corresponds to the best linear fit to the Galileo and SMEI secondary minima (see Sect. 2.1). Third light L3 has been estimated for the SMEI passband using model atmospheres. Heliocentric Julian date of the periastron passage is − 2 452 000. Reduced is separately given for LCs and BFs. Generalized equipotentials are given for the mean distance (not in the periastron passage). Projected rotational velocities in the case of the combined ROCHE solution were not optimized but computed from other parameters. The ratio of fluxes, lAb/lAa, is given in the SMEI passband.
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