Table 1
Spectroscopic atmospheric parameters for confirmed magnetic He-sdOs (upper), new magnetic stars (centre), and He-sdOs showing the 4630 Å feature (lower).
| Star | Teff(K) | log ɡ (cm s−1) | log n(He)/n(H) | Bav (kG) | υrad (km s−1) | S/N | ||
|---|---|---|---|---|---|---|---|---|
| J0415+2528(*) | 46 580 ± 1500 | 5.98 ± 0.25 | −0.10 ± 0.15 | 305 ± 20 | −17 ± 10 | – | ||
| J0809–2627(†) | 44900 ± 1000 | 5.93 ± 0.15 | 0.28 ± 0.10 | 353 ± 10 | 33 ± 2 | – | ||
| J1303+2646(*) | 47 950 ± 1500 | 5.97 ± 0.30 | 0.25 ± 0.15 | 450 ± 20 | −37 ± 8 | – | ||
| J1603+3412(*) | 46450 ± 1500 | 6.06 ± 0.20 | 0.07 ± 0.15 | 335 ± 15 | 6 ± 5 | – | ||
| J1233–6749 | 47 680 ± 1000 | 5.60 ± 0.13 | 0.11 ± 0.05 | 222 ± 10 | 82 ± 15 | 110 | ||
| J1256–5753 | 46980 ± 1000 | 5.75 ± 0.16 | 0.00 ± 0.05 | 216 ± 24 | 5 ± 12 | 110 | ||
| J1444–6744 | 45 990 ± 1000 | 5.55 ± 0.15 | 0.17 ± 0.06 | 184±14 | 1 ± 10 | 90 | ||
| EC20577–5504 | 46610 ± 1000 | 6.09 ± 0.12 | 0.19 ± 0.05 | ≤ 59 ± 3 | −42 ± 10 | 180 | ||
| EC22332–6837 | 46990 ± 1000 | 5.93 ± 0.12 | 0.28 ± 0.06 | ≤ 82 ± 5 | −101±10 | 100 | ||
| PG1625–034 | 46 570 ± 1100 | 5.67 ± 0.16 | 0.49 ± 0.09 | ≤128 ± 9 | −84± 11 | 40 | ||
| J0714–2245 | 44400 ± 1000 | 5.61 ± 0.13 | −0.26 ± 0.05 | ≤107± 4 | 33 ± 10 | 70 | ||
| J1346–4025 | 45 070 ± 1000 | 5.83 ± 0.12 | 0.13 ± 0.05 | ≤ 68 ± 4 | −17±10 | 130 | ||
| J1946–4756 | 46730 ± 1100 | 5.84 ± 0.16 | 0.12 ± 0.08 | ≤129± 9 | −41 ± 11 | 40 | ||
Notes.(*) From Pelisoli et al. (2022).(†) From Dorsch et al. (2022). J0714–2245 ≡ Gaia DR3 2927944940172059648, J1346-4025 ≡ UCAC4 248-062759, and J1946–4756 ≡ GALEX J194618.8–475617. The last column lists the mean signal-to-noise ratio (S/N) of the RSS spectra. For J1233–6749, J1256–5753, and J1444–6744, the four available spectra were co-added to obtain average magnetic field strengths, while Teff, log ɡ, and log n(He)/n(H) were derived from the individual spectra. Estimated systematical uncertainties are stated for one sigma confidence.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.