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Table 1
Properties of newly discovered MWDs.
| WD name | WD 0004+122 | WD 0708−670 | WD 0810−353 | WD 1315−781 | WD 1703−267 | WD 2049−253 |
|---|---|---|---|---|---|---|
| Alt name | LP 464-57 | SCR J0708-6706 | UPM J0812-3529 | LAWD 45 | Gaia DR2 only | Gaia DR2 only |
| Spectral class | DCH | DCH | DAH | DAH | DAH | DC(H?) |
| V | 16.22 | 14.47 | 16.16 | |||
| G | 16.26 | 15.97 | 14.36 | 15.97 | 15.02 | 16.04 |
| α (J2000) | 00 07 20.55 | 07 08 52.28 | 08 12 26.98 | 13 19 25.56 | 17 06 41.33 | 20 52 13.51 |
| δ (J2000) | +12 30 21.16 | −67 06 31.43 | −35 29 43.8 | −78 23 28.17 | −26 43 36.2 | −25 04 17.5 |
| π (mas) | 57.31 ± 0.11 | 59.02 ± 0.04 | 89.52 ± 0.02 | 51.84 ± 0.04 | 76.62 ± 0.06 | 55.65 ± 0.06 |
| Teff (K) | 4885 ± 45 | 5020 ± 80 | 6093 | 5619 ± 193 | 6168 | 4895 |
| logg (cgs) | 8.09 ± 0.02 | 7.99 ± 0.04 | 8.09 | 8.17 ± 0.02 | 8.35 | 7.84 |
| Mass (M⊙) | 0.625 ± 0.014 | 0.56 ± 0.03 | 0.63 | 0.69 ± 0.02 | 0.82 | 0.48 |
| Age (Gyr) | 6.45 | 5.47 ± 0.34 | 2.7 | 4.39 | 4.2 | 4.4 |
| Reference | 1, 2 | 2, 5 | 2, 3, 6 | 2, 4 | 2, 3, 6 | 2, 3, 6 |
References. Key to references: (1) Blouin et al. (2019); (2) Gaia Collaboration (2018); (3) Gentile Fusillo et al. (2019); (4) Giammichele et al. (2012); (5) Subasavage et al. (2017); (6) http://www.astro.umontreal.ca/~bergeron/CoolingModels. Spectral classification is based on this work.
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