Table 1.
Properties of the sources studied in this paper.
| ID | Companion | Distance | Orbital period | Spin period | Super-orbital period | Tπ/2 | e | ω | a sin i/c | BNS | Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (kpc) | (d) | (s) | (d) | (MJD) | (deg) | (lt-s) | 1012 G | ||||
| IGR J11215−5952 | B0.5Ia |
 |
164.6 ± 0.1 | 186.78 ± 0.3 | – | 57925.5 ± 0.5 | – | – | – | – | SFXT |
| IGR J16393−4643 | OB (a) | 12 (a) | 4.2380 ± 0.0005 | 904.0 ± 0.1 | 14.9805 ± 0.0022 (a) | 53418.3 ± 0.1 | – | – | – | 2.5 ± 0.1 | Class. |
| IGR J17503−2636 | OB (a) | 10 (a) | – | – | – | – | – | – | – | 2.0 (a) | SFXT |
| IGR J18410−0535 | B1 Ib | 3.2 (a) | – | – | – | – | – | – | – | – | SFXT |
| XTE J1855−026 | BN0.2 Ia | 10 (a) | 6.0724 ± 0.0009 | 361.1 ± 0.4 | – | 51495.25 ± 0.002 | 0.04 ± 0.02 | 226 ± 15 | 80.5 ± 1.4 | – | Class. |
| 4U 1907+097 | O8/O9 Ia | 5 (a) |
 |
440.341 |
– |
 |
 |
330 ± 20 | 83 ± 4 | 2.1 | Class. |
| IGR J19140+0951 | B0.5Ia/d | 2–5 (a) | 13.5527 ± 0.0001 | 5937 ± 219 (a) | – | 52061.42 (b) | – | – | – | – | Class. |
Notes. Orbital epoch (Tπ/2) indicates either the mid-eclipse time or the reference orbital epoch used for the ephemerides if the source is not eclipsing. For IGR J11215−5952, Tπ/2 indicates the mid-time of the 2017 outburst as reported by Sidoli et al. (2017, but see also Romano et al. 2009). In the case of IGR J16393−4641 Tπ/2 corresponds to the epoch for which the minimum of the source light curve folded at the best-known orbital period is at phase zero. For IGR J19140+0951, the reported orbital period is the one derived in Appendix A. Also listed, when available: orbit eccentricity e, longitude of periastron ω, projected semi-major axis length a sin i/c, and estimated NS magnetic field strength (BNS, if derived from a confirmed CRSF). References are given in the text.
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