Table 2
Mass properties by spectral type in our sample.
| Type | N | M̄ | M̃ | Merr | σ | Q16−Q84 |
|---|---|---|---|---|---|---|
| (M⊙) | (M⊙) | Merr | σ | Q16−Q84 | ||
| (1) | (2) | (3) | (4) | (5) | ||
| sdB | 32 | 0.48 | 0.46 | 13 | 30 | 0.40−0.54 |
| sdOB | 33 | 0.47 | 0.44 | 15 | 25 | 0.37−0.56 |
| pulsators | 15 | 0.49 | 0.47 | 12 | 23 | 0.40−0.61 |
| sdO | 5 | 0.43 | 0.36 | 19 | 32 | 0.26−0.48 |
| iHe-sdOB | 7 | 0.47 | 0.47 | 22 | 42 | 0.36−0.67 |
| eHe-sdOB | 3 | 0.41 | 0.48 | 20 | 25 | 0.32−0.50 |
| iHe-sdO | 5 | 0.73 | 0.80 | 18 | 34 | 0.56−1.08 |
| eHe-sdO | 18 | 0.80 | 0.79 | 24 | 34 | 0.53−1.07 |
| He-poor | 70 | 0.47 | 0.45 | 15 | 28 | 0.36−0.56 |
| iHe-rich | 12 | 0.58 | 0.55 | 19 | 50 | 0.42−0.95 |
| eHe-rich | 21 | 0.74 | 0.70 | 23 | 41 | 0.48−1.05 |
| All | 103 | 0.51 | 0.47 | 17 | 47 | 0.36−0.70 |
Notes. (1) Weighted average. (2) Median. (3) Median of the individual mass uncertainties. (4) Standard deviation. (5) Interquartile range, 16th−84th percentile. Both Merr and σ are expressed as a percentage to remove the correlation between the masses and their absolute uncertainties.
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