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Table 3.
Binary constraints assuming main-sequence companions.
| Object | Orbital period (h) from | Spectral type from | ||
|---|---|---|---|---|
| Outburst amplitude | Quiescent colors | Porb in column #2 | Quiescent colors | |
| MAXI J0637-430 | ≤4.5 | – | > M1 V | – |
| MAXI J1348-630 | ≤7.9 | ≤10.1 | > G8 V | > K2 V |
| SWIFT J1539.2-627 | ≤21.5 | ≤6.7 | > A0 V | > K0 V |
| XTE J1726-476 | ≤10.6 | – | > F8 V | – |
| 4U 1755-338 | 4.4a | ≈M1 Vb | ||
| MAXI J1803-298 | 7.02 ± 0.18c | ≈ K0 Vd | ||
| XTE J1817-330 | ≤8.2 | ≈6.6 | > G6 V | ≈K3 V |
| XTE J1818-245 | ≤20.8 | – | > A0 V | – |
| MAXI J1828-249 | ≤15.4 | – | > A6 V | – |
Notes. aWachter & Smale (1998); b Spectral type for a Roche lobe filling main sequence with Porb = 4.4 h; c Measured from X-ray dips (Jana et al. 2022); d Spectral type for a Roche lobe filling main sequence with Porb = 7.02 ± 0.18 h.
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