Table 1
Log of UVES observations and derived RVs for AB 6.
| MJDa | ϕb |  |
 |
 |
 |
 |
|---|---|---|---|---|---|---|
| (km s−1) | (km s−1) | (km s−1) | (km s−1) | (km s−1) | ||
| 57938.30 | 0.82 | 19 ± 10 | 32 ± 25 | 297 ± 10 | 211 ± 15 | 143 ± 3 |
| 57944.35 | 0.74 | − 8 ± 10 | − 55 ± 25 | 294 ± 10 | 205 ± 15 | 142 ± 3 |
| 57945.38 | 0.90 | 78 ± 10 | 184 ± 25 | 263 ± 15 | 213 ± 10 | 141 ± 3 |
| 57947.33 | 0.20 | 457 ± 10 | 428 ± 25 | 94 ± 10 | 218 ± 10 | 141 ± 3 |
| 57959.34 | 0.03 | 295 ± 10 | 328 ± 25 | 168 ± 15 | 214 ± 10 | 146 ± 3 |
| 57963.30 | 0.64 | 36 ± 10 | − 61 ± 25 | 291 ± 10 | 213 ± 10 | 148 ± 3 |
| 57974.32 | 0.33 | 437 ± 10 | 377 ± 25 | 101 ± 10 | 214 ± 10 | 158 ± 3 |
| 58001.23 | 0.44 | 336 ± 10 | 172 ± 25 | 159 ± 15 | 200 ± 10 | 178 ± 3 |
| 58025.16 | 0.10 | 380 ± 10 | 464 ± 25 | 127 ± 10 | 216 ± 10 | 205 ± 3 |
Notes. (a) Mid-exposure, in JD− 2 400 000.5. (b) Using ephemeris in Table 2. (c)Using the N V λλ4604, 4620 doublet. A shift of − 35 km s−1 should be applied for the estimated absolute RVs (Sect. 4). (d) Using the He II λ4686 line. (e) Using an average of the He I λ4472, 5875 lines. (f) Using the N IV λ4060 line, except for phases ϕ = 0.54, 0.60, where the N III λλ4634, 4642 doublet is used. (g)Using an average of the Si IVλλ4089, 4116 lines.
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