Table 1
Known WDs in binary systems in the solar neighbourhood.
| WD name | Distance [pc] | Spectral | Mass [M⊙] | log L/L⊙ | Companion | Spectral | Angular | References |
| type | name | type | separation [′′] | |||||
|
|
||||||||
| Resolved WDMS | ||||||||
| 0148+641 | 17.35 (0.15) | DA5.6 | 0.66 (0.03) | –3.08 | GJ 3117 A | M2 | 12.1 | 1, 2, 3, 4, 5 |
| 0208−510 | 10.782 (0.004) | DA6.9 | 0.59 (0.01) | – | GJ86A | K0 | 1.9 | 3, 6, 7 |
| 0415−594 | 18.46 (0.05) | DA3.3 | 0.60 (0.02) | – | eps. Reticulum A | K2 | 12.8 | 7, 9,10 |
| 0426+588 | 5.51 (0.02) | DC7.1 | 0.69 (0.02) | –3.52 | GJ 169.1 A | M4.0 | 9.2 | 4, 5, 8, 11, 12, 13, 14 |
| 0628−020 | 20.49 (0.46) | DA7.2 | 0.62 (0.01) | – | LDS 5677B | M | 4.5 | 15, 16, 17 |
| 0642−166 | 2.631 (0.009) | DA2.0 | 0.98 (0.03) | –1.53 | Sirius A | A0 | 7.5 | 8, 10, 18 |
| 0736+053 | 3.50 (0.01) | DQZ6.5 | 0.63 (0.00) | –3.31 | Procyon A | F5 | 53 | 10, 19 |
| 0738−172 | 9.096 (0.046) | DZA6.6 | 0.62 (0.02) | –3.35 | GJ 238 B | M6.5 | 21.4 | 3, 8, 20, 21 |
| 0751−252 | 17.78 (0.13) | DA9.9 | 0.59 (0.02) | –4.02 | LTT2976 | M0 | 400 | 3, 4, 5, 22, 23 |
| 1009−184 | 18.3 (0.3) | DZ8.3 | 0.59 (0.02) | –3.74 | LHS 2031 A | K7 | 400 | 3, 10, 24, 25, 26 |
| 1043−188 | 19.01 (0.18) | DQpec8.7 | 0.53 (0.11) | –3.77 | GJ 401 A | M3 | 8 | 3, 4, 5, 15 |
| 1105−048 | 17.33 (3.75) | DA3.5 | 0.54 (0.01) | – | LP 672–2 | M3 | 279 | 2, 17, 27, 28 |
| 1132−325 | 9.560 (0.034) | DC10 | – | – | HD 100623 | K0 | 16 | 8, 10, 17, 29 |
| 1327−083 | 16.2 (0.7) | DA3.5 | 0.61 (0.03) | –2.16 | LHS 353 | M4.5 | 503 | 3, 28, 30, 31 |
| 1345+238 | 12.1 (0.3) | DC11.0 | 0.45 (0.02) | –4.08 | LHS 362 | M5 | 199 | 3, 31, 32 |
| 1544−377 | 15.25 (0.12) | DA4.8 | 0.55 (0.03) | –2.67 | GJ 599 A | G6 | 15.2 | 3, 4, 5, 8, 10, 33 |
| 1620−391 | 12.792 (0.062) | DA2.1 | 0.61 (0.02) | –1.12 | HD 147513 | G5 | 345 | 8, 10, 27, 31, 34 |
| 1917−077 | 10.1 (0.3) | DBQA4.8 | 0.62 (0.02) | –2.81 | LDS 678B | M6 | 27.3 | 3, 20, 31 |
| 2011+065 | 22.4 (1.0) | DC7.6 | 0.7 (0.04) | –3.68 | LHS 3533 | M3.5 | 101 | 13, 26, 35 |
| 2151−015 | 24.5 (1.0) | DA5.5 | 0.58 (0.03) | –2.96 | LTT 8747B | M8 | 1.082 | 3, 31, 36 |
| 2154−512 | 15.12 (0.12) | DQP8.3 | 0.60 (0.04) | –3.44 | GJ841 A | M2 | 28.5 | 3, 4, 5, 30, 37, 38 |
| 2307+548 | 16.2 (0.7) | DA8.8 | 0.58 (–) | – | G233–42 | M5 | 6 | 13, 17, 39, 40 |
| 2307−691 | 20.94 (0.38) | DA5 | 0.57 (–) | – | GJ 1280 | K3 | 13.1 | 17 |
| 2341+322 | 17.61 (0.55) | DA4.0 | 0.56 (0.03) | –2.3 | G130–6 | M3 | 175 | 20, 41, 42 |
|
|
||||||||
| Unresolved WDMS | ||||||||
| 0419−487 | 20.13 (0.55) | DA7.8 | 0.22 (0.05) | –3.14 | – | M4 | P = 0.3037 | 3, 16, 43, 44, 45 |
| 0454+620 | 21.6 (1.2) | DA4.6 | 1.14 (0.07) | – | – | – | – | 13, 39 |
|
|
||||||||
| Resolved DWD | ||||||||
| 0648+641 | 33.3 (5.9) | DA8.3 | 0.98 (0.09) | –4.09 | WD0649+639 | DA8.1 | 490 | 13, 28, 46, this work |
| 0747+073A | 18.3 (0.2) | DC10.4 | 0.48 (0.01) | –4.20 | WD0747+073B | DC12 | 16.4 | 27, 47 |
| 2126+734 | 21.2 (0.8) | DA3.2 | 0.60 (0.03) | –1.97 | – | DC10 | 1.4 | 13, 31, 48 |
| 2226−754 | 13.5 (0.9) | DC12.0 | 0.58 (0.00) | –4.32 | WD2226−755 | DC12.0 | 93 | 3, 49 |
|
|
||||||||
| Unresolved DWD | ||||||||
| 0135−052 | 12.3 (0.4) | DA6.9 | 0.24 (0.01) | –3.00 | – | DA6.9 | P = 1.56 | 27, 50 |
| 0532+414 | 22.4 (1.0) | DA6.5 | 0.52 (0.03) | –3.20 | – | – | – | 3, 49 |
| Unresolved DWD candidate | ||||||||
| 0108+277 | 28.0 (1.5) | DA7.8 | 0.59 (0.00) | –3.60 | – | – | – | 3 |
| 0121−429 | 18.3 (0.3) | DAH8.0 | 0.41 (0.01) | –3.46 | – | – | – | 3 |
| 0423+120 | 17.4 (0.8) | DC8.2 | 0.65 (0.04) | –3.75 | – | – | – | 3, 25 |
| 0503−174 | 21.9 (1.9) | DAH9.5 | 0.38 (0.07) | –3.75 | – | – | – | 3 |
| 0839−327 | 8.80 (0.15) | DA5.6 | 0.44 (0.07) | –2.84 | – | – | – | 3, 8 |
| 2048+263 | 20.1 (1.4) | DA9.9 | 0.24 (0.04) | –3.65 | – | – | – | 3 |
| 2248+293 | 20.9 (1.9) | DA9.0 | 0.35 (0.07) | –3.62 | – | – | – | 3 |
| 2322+137 | 22.3 (1.0) | DA9.7 | 0.35 (0.03) | –3.75 | – | – | – | 3 |
Notes. The distances, spectral types, masses, and luminosities are taken from Giammichele et al. (2012). References for the binarity of the system are given in the last column. For the unresolved systems, the period P is given in days instead of angular separation, if available. 1Greenstein (1970); 2Wegner (1981); 3Giammichele et al. (2012); 4Tremblay et al. (2017); 5Gaia Collaboration (2016); 6Mugrauer & Neuhäuser (2005); 7van Leeuwen (2007); 8http://www.DenseProject.com; 9Farihi et al. (2011a); 10Holberg et al. (2013); 11Liebert (1976); 12Heintz (1990); 13Limoges et al. (2015); 14Dieterich et al. (2012); 15Oswalt et al. (1988); 16Subasavage et al. (2009); 17Holberg et al. (2016); 18Gatewood & Gatewood (1978); 19Liebert et al. (2013); 20Luyten (1949); 21Davison et al. (2015); 22Subasavage et al. (2008); 23Luyten & Hughes (1980); 24Henry et al. (2002); 25Holberg et al. (2008b); 26Hawley et al. (1996); 27Sion et al. (2014); 28van Altena et al. (1995); 29Poveda et al. (1994); 30Eggen (1956); 31Farihi et al. (2005); 32Dahn & Harrington (1976); 33Wegner (1973); 34Alexander & Lourens (1969); 35Giclas et al. (1959); 36Farihi et al. (2006); 37Vornanen et al. (2010); 38Tamazian & Malkov (2014); 39Limoges et al. (2013); 40Newton et al. (2014); 41Sion & Oswalt (1988); 42Garcés et al. (2011); 43Bessell & Wickramasinghe (1979); 44Bruch & Diaz (1998); 45Maxted et al. (2007); 46Lépine & Shara (2005); 47Greenstein (1970); 48Zuckerman et al. (1997); 49Scholz et al. (2002); 50Saffer et al. (1998)51Zuckerman et al. (2003).
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