Table 1
Binary systems found from common parallaxes and proper motions, with at least a UCD candidate in their components.
| Name | Spectral type | RA deg | Dec deg | μRA mas yr−1 | μDec mas yr−1 | Parallax mas |
|---|---|---|---|---|---|---|
| 2MASS J23495194-2627594(a) | M5.0 | 357.4676880 | −26.4661806 | 237.744 | 72.853 | 23.274 |
| J2349-2627 | L2.5 | 357.4723326 | −26.4647437 | 237.085 | 73.130 | 21.905 |
| 2MASS 07215434-3104365 | M3.0 | 110.4767231 | −31.0778963 | 52.475 | −227.870 | 41.1380 |
| J0721-3105 | M6.5 | 110.4802981 | −31.0885526 | 57.029 | −229.768 | 41.048 |
| J0943-2009 | M7.5 | 145.8666910 | −20.1648161 | −221.041 | 180.053 | 19.937 |
| J0943-2010 | M8.5 | 145.8661622 | −20.1676840 | −219.376 | 179.819 | 19.932 |
| Gaia DR2 4757030391786232576 | WD | 82.3906350 | −63.9487136 | 166.109 | −4.879 | 14.048 |
| J0529-6357 | M7.5 | 82.4196342 | −63.9525915 | 165.976 | −3.968 | 14.122 |
| J0945-4120 | M8.0 | 146.3288956 | −41.3450184 | −144.533 | 83.965 | 17.139 |
| 2MASS 09450332-4115209 | M5? | 146.2629519 | −41.2554272 | −145.015 | 84.615 | 17.357 |
| J1456-5059 | M8.5 | 224.1588143 | −50.9860720 | −419.117 | −128.584 | 31.110 |
| 2MASS 14563857-5059174 | M3? | 224.1576894 | −50.9887596 | −420.868 | −146.202 | 30.799 |
| J0347+0417 | M8 | 56.7820854 | 4.2981726 | 113.323 | −49.331 | 30.928(b) |
| Gaia DR3 3271777035212786944 | M9.5? | 56.7820761 | 4.2983795 | 121.010 | −45.425 | 31.00 |
Notes. “?” denotes an unconfirmed spectral type, issued from photometric relations of Reylé (2018) or Hawley et al. (2002). (a)Identified in the RAVE survey (RAVE DR6, Steinmetz et al. 2020) as a 0.10 M⊙, 9 Gyr star, with a radial velocity of 12.00 ± 3.85 km s−1.(b) Analysed as a spectral binary, see Sect. 4.4.
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