Table 4
Stellar samples targeting binary companions at ~2 au and 300 au separations.
| Embedded | PMS | MS | ||||
|---|---|---|---|---|---|---|
| MYSOs | Class I | Young OBs | YSOs | O-type | Solar type | |
| Sample | 6 | 267 | 16 | 152 | 279 | 454 |
| Mass (M⊙) | 8–16 | 0.5–100 (L⊙) | 6.7–39 | 0.25–2.5 | >15 | ~1 |
| Method | Interferometry (I) | AO imaging | Interferometry | Aperture masking (AM) | (I+AM) | All combined |
| Sensitivity | ΔK ~ 5 | ΔL ~ 4 | ΔK ~ 5 | ΔK ~ 4 | ΔH ~ 5 | ΔV < 3, ΔK < 2.5 |
| Binary fraction | 17 % |
15 ± 2% | 30 ± 11% | 55 ± 6% | 53 ± 5% | 28 ± 2% |
Notes. The binary fractions at those separations are also reported.
References. The references of each class of objects are: This study (MYSOs), Connelley et al. (2008, Class I), GRAVITY Collaboration (2018, Young OBs), Kraus et al. (2011, YSOs), Sana et al. (2014, MS OBs), Raghavan et al. (2010, MS Solar type).
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.