Table 1.
The properties of the six currently known pulsar/massive star binaries.
| PSR name | P | Pb | e | Mc | l | b | Ref. |
|---|---|---|---|---|---|---|---|
| (s) | (d) | (M⊙) | |||||
| J0045−7319 | 0.926 | 51 | 0.81 | 8.8 |
 |
 |
[1, 2] |
| B1259−63 | 0.048 | 1237 | 0.87 | 20 |
 |
 |
[3, 4] |
| J1638−4725 | 0.764 | 1941 | 0.96 | 8( † ) |
 |
 |
[5] |
| J1740−3052 | 0.570 | 231 | 0.58 | 20 |
 |
 |
[6, 7] |
| J2032+4127 | 0.143 | 16 835 | 0.96 | 15 |
 |
 |
[8] |
| J2108+4516 | 0.577 | 269 | 0.09 | 17.5–23 |
 |
 |
[9] |
Notes. Shown are the pulsar names, their spin period (P), orbital period (Pb), eccentricity (e), companion mass (Mc), Galactic longitude (l), and latitude (b). The references used are: [1] Kaspi et al. (1996), [2] Bell et al. (1995), [3] Shannon et al. (2014), [4] Johnston et al. (1994), [5] Lorimer et al. (2006), [6] Bassa et al. (2011), [7] Madsen et al. (2012), [8] Lyne et al. (2015), and [9] Andersen et al. (2023). ( ⋆ )PSR J0045−7319 is located in the Small Magellanic Cloud, hence, the high Galactic latitude. ( † )The companion of J1638−4725 has not been identified. The mass estimate is the median mass calculated from the orbital period and projected-semi major axis, assuming an inclination of 60°.
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