Table 1
Spectral lines of Br and Sb detected in three He-rich white dwarfs.
| Ion | Transition | J− J | λlab /Å | loggifik | Ei/cm−1 | RE 0503−289 | PG 0109+111 | HD 149499 B |
|---|---|---|---|---|---|---|---|---|
| Br VI | 4s2 1S–4s4p 3Po | 0–1 | 945.96 | −2.193 | 0.0 | × | × | |
| 4s4p 1Po–4p2 3P | 1–2 | 981.42 | −0.600 | 151 285.0 | × | × | ||
| 1–1 | 1050.55 | −0.275 | 151 285.0 | × | × | |||
| Sb V | 5s 2S–5p 2Po | 1/2–3/2 | 1104.20 | 0.052 | 0.0 | × | × | |
| 1/2–1/2 | 1225.98 | −0.232 | 0.0 | × | ||||
| Sb VI | 5s 3D–5p 3Fo | 3–4 | 999.40 | 0.440 | 242 916.8 | × | ||
| 5s 3D–5p 3Po | 1–0 | 1043.07 | 0.520 | 242 916.8 | × |
Notes. Excitation energies Ei for Br VI from Riyaz et al. (2012), for Sb V from Chan (1966), and for Sb VI from Churilov et al. (2000). Oscillator strengths fik for Br VI from Riyaz et al. (2012), for Sb V from Morton (2000). For Sb VI, we used the fik values of the respective lines in the isoelectronic Ge V ion from Rauch et al. (2012). gi is the statistical weight of lower level i. An entry “×” in the last three columns indicates which line was detected in which star.
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