Table 1
Multiplicity properties for population I main-sequence stars used for this study (adapted from DK13).
| Mass range | Mult./comp. | Mass ratio | Orbital period |
| frequency | distribution | distribution | |
|
|
|||
| M⋆ ≲ 0.1 M⊙ |
|
γ = 4.2 ± 1.0 | Unimodal (log-normal?) |
|
 AU, σlog P ≈ 0.5 |
||
|
|
|||
| 0.1 M⊙ ≲ M⋆ ≲ 0.5 M⊙ | MF = 26 ± 3% | γ = 0.4 ± 0.2 | Unimodal (log-normal?) |
| CF = 33 ± 5% |  AU, σlog P ≈ 1.3 |
||
|
|
|||
| 0.7 M⊙ ≲ M⋆ ≲ 1.3 M⊙ | MF = 44 ± 2% | γ = 0.3 ± 0.1 | Unimodal (log-normal) |
| CF = 62 ± 3% |  AU, σlog P ≈ 2.3 |
||
|
|
|||
| 1.5 M⊙ ≲ M⋆ ≲ 5 M⊙ | MF ≥ 50% | γ = −0.5 ± 0.2 | Bimodal |
| CF = 100 ± 10% |  d and  AU |
||
Notes. Multiple systems are characterised by the frequency of multiple system MF and the companion frequency CF, i.e. the average number of companions per star. The latter can exceed 1. The two last columns present the parameters for mass ratio distribution and for orbital period distribution. See DK13 for more details.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.