Table 1.
Binary fraction point estimates, q ≥ 0.6.
| Reference | Semi-major axis range (AU) | Primary mass range (M⊙) | Binary fraction estimate |
|---|---|---|---|
| Delfosse et al. (1999) | 0.00–4.63 | 0.13–0.44 | 0.04 ± 0.018 |
| Cortés-Contreras et al. (2017) | 3.28–37.17 (*) | 0.14–0.49 | 0.07 ± 0.012 |
| Janson et al. (2012) | 3.00–227.00 | 0.20–0.59 | 0.17 ± 0.015 |
| Ward-Duong et al. (2015) A | 3.78–126.00 (*) | 0.24–0.67 | 0.11 ± 0.022 |
| Ward-Duong et al. (2015) B | 126.00–12 600.00 (*) | 0.32–0.52 | 0.07 ± 0.017 |
Notes. This table depicts each of the M dwarf surveys used in this study alongside their respective ranges of semi-major axis over which the survey was at least 90% complete, ranges of primary star masses, and the point estimates of the binary fraction that we made after excluding companion detections outside the respective semi-major axis ranges and with q < 0.6. (*)Projected separations converted into physical separations by multiplying limits by 1.26 (Fischer & Marcy 1992).
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