Table 1.
Gaia DR2 astrometry, photometry, and tangential velocities, initial spectral types from CAFOS spectroscopy, and estimated effective temperatures and our corresponding adopted spectral types of ten new WDs from Gaia colours.
| CA No. | Alternative Names | RAa (degrees) | Deca (degrees) | Plxa (mas) | pmRAa (mas yr−1) | pmDeca (mas yr−1) | Ga (mag) | BP−RPa (mag) | Initial SpT | Teff (K) | Adopted SpT | νtanb (km s−1) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 037 | GD 277 | 22.350203 | +51.145903 | 26.19 ± 0.05 | +32.96 ± 0.09 | –110.58 ± 0.09 | 13.550 | –0.338 | DA2.5 ± 1.0 | 22857 ± 2200 | DA2.2 ± 0.2 | 21 |
| 054 | GD 28 | 37.170803 | +36.760490 | 24.41 ± 0.06 | +10.41 ± 0.10 | –171.67 ± 0.08 | 15.965 | +0.292 | DA5.0 ± 2.0? | 8301 ± 650 | DA6.1 ± 0.5 | 33 |
| 078 | 2MASS J05005185-0930549 | 75.215835 | –9.515829 | 13.97 ± 0.05 | –48.55 ± 0.07 | –121.87 ± 0.07 | 12.616 | –0.023 | DA3.0 ± 1.5? | 11884 ± 1100 | DA4.2 ± 0.5 | 45 |
| 082 | 2MASS J05280449+4105253 | 82.019148 | +41.090348 | 18.31 ± 0.08 | +66.30 ± 0.10 | –3.13 ± 0.08 | 15.124 | –0.117 | DA3.0 ± 1.0 | 13994 ± 1100 | DA3.6 ± 0.3 | 17 |
| 103 | 2MASS J07035743+2534184 | 105.988994 | +25.571520 | 39.06 ± 0.03 | –58.29 ± 0.06 | –55.69 ± 0.05 | 13.912 | –0.037 | DB3.5 ± 1.0? | 12168 ± 1100 | DB4.1 ± 0.4 | 10 |
| 305 | LP 740-47 | 220.824701 | –14.621474 | 34.89 ± 0.08 | –225.37 ± 0.14 | –128.43 ± 0.12 | 16.218 | +0.585 | DA8.0 ± 1.0 | 6704 ± 650 | DA7.5 ± 0.8 | 35 |
| 376 | HD 166435 B | 272.331404 | +29.956111 | 40.90 ± 0.04 | +66.93 ± 0.06 | +74.25 ± 0.07 | 13.143 | –0.344 | DA2.5 ± 1.0 | 23180 ± 2200 | DA2.2 ± 0.2 | 12 |
| 397 | LSPM J1919+4527 | 289.900277 | +45.463443 | 35.59 ± 0.04 | –108.92 ± 0.08 | +312.59 ± 0.09 | 16.452 | +1.194 | DC10.5 ± 1.0 | 4901 ± 300 | DC10.3 ± 0.7 | 44 |
| 399 | GD 221 | 291.858997 | +10.118643 | 12.53 ± 0.05 | –80.04 ± 0.07 | –188.03 ± 0.06 | 14.724 | –0.386 | DA2.5 ± 1.0 | 25771 ± 2200 | DA2.0 ± 0.2 | 77 |
| 400 | 2MASS J19293865+1117523 | 292.411127 | +11.298312 | 27.34 ± 0.05 | +19.15 ± 0.07 | +97.83 ± 0.06 | 13.508 | –0.313 | DA2.5 ± 1.0 | 21445 ± 2200 | DA2.4 ± 0.3 | 17 |
Notes. Gaia DR2 coordinates are for (J2000, epoch 2015.5) and were rounded to 0.000001 degrees, parallaxes and their errors were rounded to 0.01 mas, proper motions and their errors to 0.01 mas yr−1, magnitudes and colours were rounded to 0.001 mag. The initial spectral types with question marks were uncertain because of low S/N or possible problems in the flux calibration of the CAFOS spectra. Further notes on the data:
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