Table 1
Atmospheric parameters of Hyades white dwarf candidates.
| Star No. | WD name | Other name | SpT | T eff | log g | M/M⊙ | M V | log τ | dist | Ref. | |
| (K) | (cm s-2) | (mag) | (yr) | (pc) | |||||||
|
|
|||||||||||
| 1 | 0347+171 | V471 Tau | DA+dK | 34 100 (100) | 8.25 (0.05) | 0.84 (0.04) | 10.20 (0.12) | 7.07 (0.13) | − | 1 | |
| 2 | 0352+096 | HZ 4 | DA | 14 670 (380) | 8.30 (0.05) | 0.80 (0.03) | 11.76 (0.09) | 8.53 (0.05) | 36 | 2 | |
| 3 | 0406+169 | LB 227 | DA | 15 810 (290) | 8.38 (0.05) | 0.85 (0.03) | 11.76 (0.09) | 8.50 (0.04) | 52 | 2 | |
| 4 | 0418+137 | HD 27483 | DA+dF | 21 410 (210) | 8.00 (0.50) | 0.63 | 10.65 | 7.70 | − | 3 | |
| 5 | 0421+162 | LP 415-46 | DA | 20 010 (320) | 8.13 (0.05) | 0.70 (0.03) | 10.96 (0.08) | 7.97 (0.06) | 47 | 2 | |
| 6 | 0425+168 | LP 415-415 | DA | 25 130 (380) | 8.12 (0.05) | 0.71 (0.03) | 10.53 (0.08) | 7.49 (0.08) | 50 | 2 | |
| 7 | 0429+176 | HZ 9 | DA+dM | 17 620 (350) | 8.02 (0.06) | 0.63 (0.04) | 11.02 (0.09) | 8.08 (0.06) | 39 | 2A | |
| 8 | 0431+126 | HZ 7 | DA | 21 890 (350) | 8.11 (0.05) | 0.69 (0.03) | 10.78 (0.08) | 7.78 (0.07) | 49 | 2 | |
| 9 | 0437+138 | LP 475-242 | DBA | 15 120 (360) | 8.25 (0.09) | 0.74 (0.06) | 11.65 (0.15) | 8.47 (0.07) | 45 | 4 | |
| 10 | 0438+108 | HZ 14 | DA | 27 540 (400) | 8.15 (0.05) | 0.73 (0.03) | 10.40 (0.08) | 7.30 (0.09) | 49 | 2 | |
|
|
|||||||||||
| 11 | 0120−024 | LP 587-53 | DA | 5880 (80) | 8.12 (0.16) | 0.66 (0.10) | 14.53 (0.24) | 9.51 (0.15) | − | 5 | |
| 14 | 0230+343 | GD 30 | DA | 15 270 (250) | 7.98 (0.05) | 0.60 (0.03) | 11.21 (0.08) | 8.26 (0.04) | 91 | 2 | |
| 15 | − | LP 246-14 | − | 9680 (2600) | 8.00 (0.50) | 0.60 | 12.31 | 8.82 | − | 6 | |
| 16 | 0259+378 | GD 38 | DA | 32 040 (470) | 7.84 (0.05) | 0.57 (0.03) | 9.59 (0.09) | 6.89 (0.02) | 174 | 2 | |
| 17 | 0312+220 | GD 43 | DA | 18 600 (300) | 7.89 (0.05) | 0.56 (0.03) | 10.74 (0.08) | 7.86 (0.06) | 105 | 2 | |
| 18 | 0339−035 | LP 653-26 | DA | 13 000 (210) | 8.06 (0.05) | 0.65 (0.03) | 11.60 (0.07) | 8.51 (0.04) | 52 | 2 | |
| 19 | 0348+339 | GD 52 | DA | 14 820 (350) | 8.31 (0.05) | 0.80 (0.03) | 11.76 (0.09) | 8.52 (0.05) | 49 | 2 | |
| 20 | − | HS 0400+1451 | DA | 14 620 (60) | 8.25 (0.01) | 0.76 (0.01) | 11.69 (0.02) | 8.50 (0.01) | − | 7 | |
| 21 | 0433+270 | LP 358-525 | DA | 5630 (100) | 8.06 (0.04) | 0.62 (0.02) | 14.65 (0.10) | 9.51 (0.06) | 18 | 8 | |
| 22 | 0437+122 | LP 475-249 | DA | 13 260 (350) | 8.08 (0.08) | 0.66 (0.05) | 11.60 (0.12) | 8.50 (0.06) | 165 | 2 | |
| 23 | 0625+415 | GD 74 | DA | 17 610 (280) | 8.07 (0.05) | 0.66 (0.03) | 11.10 (0.08) | 8.12 (0.05) | 60 | 2 | |
| 24 | 0637+477 | GD 77 | DAP | 14 650 (590) | 8.30 (0.06) | 0.80 (0.04) | 11.76 (0.12) | 8.53 (0.06) | 40 | 2B | |
| 25 | 0641+438 | LP 205-27 | DA | 16 400 (270) | 8.00 (0.05) | 0.62 (0.03) | 11.12 (0.08) | 8.17 (0.05) | 76 | 2 | |
| 26 | 0743+442 | GD 89 | DA | 15 220 (350) | 8.47 (0.05) | 0.91 (0.03) | 11.98 (0.09) | 8.61 (0.05) | 39 | 2 | |
| 27 | 0816+376 | GD 90 | DAP | 11 000 (630) | 8.00 (0.50) | 0.60 | 11.87 | 8.67 | − | 9 | |
|
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| 28 | 0233−083.1 | SDSS J023614.44−080804.9 | DQA | 10 000 (1000) | 8.00 (0.50) | 0.60 | 12.18 | 8.78 | − | 10 | |
| 29 | 0300−083.1 | SDSS J030325.22−080834.9 | DA | 11 550 (200) | 8.55 (0.08) | 0.96 (0.05) | 12.62 (0.15) | 9.00 (0.09) | − | 11 | |
| 30 | − | LP 652-342 | − | 10 940 (2840) | 8.00 (0.50) | 0.60 | 11.88 | 8.68 | − | 6 | |
| 31 | 0533+322 | G98-18 | DA | 16 970 (280) | 7.59 (0.05) | 0.43 (0.02) | 10.47 (0.08) | 8.09 (0.03) | 159 | 2 | |
| 32 | 0543+436 | G96-53 | DAZ | 8260 (130) | 7.46 (0.13) | 0.36 (0.05) | 12.19 (0.19) | 9.03 (0.07) | 99 | 2 | |
| 33 | 0557+237 | G104-10 | DA | 8360 (120) | 8.18 (0.06) | 0.70 (0.04) | 13.15 (0.11) | 9.10 (0.05) | 56 | 2 | |
| 35 | 0758+208 | SDSS J080114.02+204340.3 | DA | 7640 (70) | 8.68 (0.20) | 1.03 (0.12) | 14.35 (0.38) | 9.56 (0.04) | − | 12 | |
| 36 | 0816+387 | G111-71 | DA+dM | 7700 (110) | 8.07 (0.07) | 0.64 (0.04) | 13.31 (0.12) | 9.12 (0.05) | 45 | 2A | |
| 37 | 0820+250.1 | SDSS J082346.14+245345.6 | DA | 34 050 (100) | 7.74 (0.02) | 0.53 (0.01) | 9.29 (0.03) | 6.80 (0.01) | − | 11 | |
|
|
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| 38 | 0231−054 | PHL 1358 | DA | 17 470 (270) | 8.58 (0.05) | 0.98 (0.03) | 11.94 (0.09) | 8.52 (0.04) | 29 | 2 | |
| 39 | 0548−001 | G99-37 | DQP | 6130 (100) | 8.18 (0.04) | 0.69 (0.03) | 14.42 (0.10) | 9.56 (0.05) | 11 | 8 | |
| 40 | 0648+368 | GD 78 | DC | 5700 (1000) | 8.00 (0.50) | 0.59 | 14.51 | 9.42 | − | 13 | |
Notes. Star Nos. and categories are the same as in Paper II. Nos. 1 to 10 are the so-called classical Hyades white dwarfs. Nos. 11 to 27 are new candidates (including star Nos. 23 to 27 that are more than 20 pc away from the centre in the Z direction). Nos. 28 to 37 are rated probable non-Hyades members. Nos. 38 to 40 are new candidates identified in Sect. 2 with a residual velocity upper limit of 8 km s-1.
References. (1) Sion et al. (2012); (2) Gianninas et al. (2011); (2A) same as previous but with a M-dwarf component removed; (2B) same as previous but magnetic white dwarf fitted with non-magnetic models; (3) Burleigh et al. (1998); (4) Bergeron et al. (2011); (5) photometric fit for Teff, this work, and mass from Silvestri et al. (2001); (6) photometric fit, this work; (7) Koester et al. (2009b); (8) Giammichele et al. (2012); (9) Limoges & Bergeron (2010); Jordan (1993); (10) Vanlandingham et al. (2005); (11) Tremblay et al. (2011a); (12) Eisenstein et al. (2006); (13) Angel et al. (1981).
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