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Table 7
Comparison of orbital and stellar parameters of VFTS698 derived here with those for known sgB[e] stars and interacting binary systems.
| System | Galaxy | Orb. period | Spectral type | log L/L⊙ | Teff | log g | Ref. | ||||
| (days) | (kK) | log (cm s-2) | |||||||||
| Pri. | Sec. | Pri. | Sec. | Pri. | Sec. | Pri. | Sec. | ||||
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| VFTS698 | LMC | 12.7 | mid B | early B | 5.0 | 5.3 | 18.0 | 26.0 | 3.0* | 3.3 | This work |
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| Comparison B[e] stars: | |||||||||||
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| Hen S22 | LMC | ... | B0 – B0.5 | ... | 5.9 | ... | 23.0 | ... | ... | ... | 1 |
| Hen S35 | LMC | ... | B1[e] Iab | ... | 5.2 | ... | 22.0 | ... | 3.0 | ... | 2 |
| R4 | SMC | 7774.5 | B0.5 | A | 5.0 | 4.2 | 27.0 | 9.5 | 3.2 | 2.5 | 3 |
| R50 | SMC | ... | B2 – B3 | ... | 5.7 | ... | 17.0 | ... | ... | ... | 1 |
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| Comparison interacting binaries: | |||||||||||
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| RY Scuti | MW | 11.1 | O9.7 Ibpe | B0.5 I | > 5.0 | > 5.0 | 27.0–30.0 | 27.0–30.0 | 3.0 | 3.0 | 4,5 |
| β Lyrae | MW | 12.9 | B? | B6-8 II | 4.4 | 3.8 | 30.0 | 15.0 | ... | ... | 6,7 |
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