Table 4.
Summary of the statistical properties of the Galactic BeXRB sample.
| Short Ps pop. | Long Ps pop. | |
|---|---|---|
| Mean vpec, BJ (km s−1) | 29 ± 11 | 16 ± 8 |
| Mean vpec, iso (km s−1) | 28 ± 11 | 16 ± 8 |
| p | 0.004 | |
| piso | 0.007 | |
| Pop. vpec, BJ difference | (4.4, 22.0) | |
| Pop. vpec, iso difference | (3.5, 20.9) | |
| dC | 1.43 | |
| dC, iso | 1.32 | |
Notes. p indicates the significance of the subpopulation split as obtained from the Anderson-Darling test, pop. vpec difference is the difference between the short-spin and long-spin subpopulation velocity means obtained from bootstrapping, and dC is the value of Cohen’s d, indicating the effect size. The difference between the subpopulation velocity means, pop. vpec, is characterized using a 95% credibility interval as resulting from the bootstrap testing.
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