Table 1.
The DYNAMO-VLBA project targeted binaries in Orion .
| VLBA | VLBA | Binary | Spectral | YSO | Mass 1 | Mass 2 | Mass 3 | Ref. | Orion | |
|---|---|---|---|---|---|---|---|---|---|---|
| Name | Name 1 | Name 2 | type | type | class | (M⊙) | (M⊙) | (M⊙) | Region | |
| CXOU J054146.1–015622 | 61 | 62 | VLBI visual | … | YSO | 1.85 ± 0.58 | 0.95 ± 0.22 | … | 1, 2 | NGC 2024 |
| Brun 656 | 107 | 4 | VLBI visual | G2III | III | 2.72
|
… | … | 2, 3 | ONC |
| HD 294300a | 145 | 145B | VLBI visual | G1 | III | 2.47
|
… | … | 2, 10, 11 | σ Orionis |
| 2MASS J05414134–0153326b | 153 | 153B | VLBI visual | … | I/II | … | … | … | 12 | NGC 2024 |
| V* NU Ori | 27 | … | Hierarchical/Spectroscopic | B0.5V | Massive | 14.9 ± 0.5 | 3.9 ± 0.7 | 7.8 ± 0.7 | 4, 5 | ONC |
| θ1 Ori A | 11 | … | Hierarchical/Spectroscopic | B0.5+A0V+A? | Massive | 15.3 | 4.0 | 2.5 | 17,18,19 | ONC |
| θ1 Ori E | 9 | … | Spectroscopic | G2IV | … | 2.807 | 2.797 | … | 20, 21 | ONC |
| Parenago 1540c | 19 | … | Spectroscopic | K3V+K5V | WTTS | 1.7 | 1.25 | … | 13, 14 | ONC |
| HD 37017c | 34 | … | Spectroscopic | B2V | Massive | 3.5 to 8.5 | 1.8 to 4.5 | … | 15, 16 | ONC |
| COUP 450 [GMR A] | 5 | … | Astrometric | K5V | III | … | … | … | 6,7,8 | ONC |
| ALMA J053514.5010–052238.674 | 7 | … | Astrometric | … | … | … | … | … | 8 | ONC |
| V* MT Ori | 8 | … | Astrometric | K2 | … | … | … | … | 2, 8, 22 | ONC |
| V* V1399 Orid | GMR V | … | Astrometric | G8 | III | … | … | … | 8, 9 | ONC |
| CXOU J054145.8–015411 | 124 | … | Astrometric | … | YSO | … | … | … | 1, 12 | NGC 2024 |
| V* V1230 Ori | 149 | … | Astrometric | B1 | Massive | … | … | … | 1 | ONC |
Notes.a KHL17 only reported VLBA 145 and labeled as a probable binary. We have detected the companion in new VLBA observations.
b No previous suggestion of binarity prior to this work. However, our new VLBA observations uncovered a companion to this source.
c Not included in DYNAMO-VLBA observations; however, we did a new astrometric analysis and include it here for completeness.
d Not included in early VLBA observations of GOBELINS.
1 = Broos et al. (2013), 2 = KHL17, 3 = Valegård et al. (2021), 4 = Simón-Díaz et al. (2011), 5 = Shultz et al. (2019), 6 = Bower et al. (2003), 7 = (Großschedl et al. 2019), 8 = (Dzib et al. 2021), 9 = Hillenbrand (1997), 10 = Pinzón et al. (2021), 11 = Hernández et al. (2014), 12 = this work, 13 = Marschall & Mathieu (1988), 14 = Palla & Stahler (2001), 15 = Bolton et al. (1998), 16 = Hohle et al. (2010), 17 = Lloyd & Stickland (1999), 18 = Petr et al. (1998), 19 = Schertl et al. (2003), 20 = Costero et al. (2006), 21 = Morales-Calderón et al. (2012), and 22 = Jeffries (2007).
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.