Table 4
Means of radial velocities of stellar Balmer lines Hγ, Hδ, Hϵ, and H8, of the shell absorption in Hα, and of other stellar lines (He I 4026, He I 4143, He I 4471, and Mg II 4481).
| Spectrogr. | HJD-2400000 | Radial velocity |
|||
|---|---|---|---|---|---|
| Hγ-H8 | Shell Hα | Other | |||
| (d) | (km s−1) | ||||
| C | 46085.621 | 37.5 | |||
| C | 46085.681 | 38.8 | |||
| C | 46086.647 | 34.6 | |||
| C | 46086.793 | 35.8 | |||
| H | 49861.975 | 33.8 | 34.5 | 30.7 | |
| H | 50160.065 | 44.6 | 34.5 | 45.9 | |
| H | 50172.030 | 42.9 | 31.4 | 46.5 | |
| H | 50220.962 | 38.5 | 32.8 | 35.9 | |
| H | 50224.964 | 33.4 | 33.1 | 33.8 | |
| H | 50227.943 | 32.7 | |||
| H | 50228.443 | 34.5 | 31.7 | ||
| H | 50230.957 | 34.2 | 33.2 | 29.4 | |
| H | 50236.952 | 33.5 | 32.1 | 29.5 | |
| H | 50238.953 | 32.8 | |||
| H | 50456.077 | 40.1 | 33.7 | 26.2 | |
| H | 50467.193 | 34.7 | |||
| H | 50471.181 | 36.6 | 34.5 | 27.9 | |
| H | 50477.171 | 36.1 | 32.8 | 28.2 | |
| H | 50516.011 | 34.9 | 33.9 | 24.0 | |
| H | 50531.059 | 36.2 | 33.4 | 29.0 | |
| H | 50551.041 | 33.8 | 35.0 | 29.8 | |
| F | 51183.230 | 32.9 | 31.8: | 32.1 | |
| H | 51299.959 | 30.6 | 36.2: | 26.3 | |
| H | 51311.004 | 29.1 | 35.4: | 20.2 | |
| H | 51328.976 | 31.4 | 37.6: | 19.6 | |
| H | 51341.955 | 35.5 | 37.3: | ||
| H | 51352.951 | 32.4 | |||
| F | 51382.446 | 29.3 | 32.8 | 32.6 | |
| F | 51384.440 | 31.4 | 31.9 | 30.6 | |
| F | 51564.289 | 34.0 | 30.3 | ||
| F | 53396.999 | 30.9 | 28.1 | ||
| F | 53397.000 | 30.2 | 25.4 | ||
| F | 53398.001 | 29.4 | 29.4 | ||
| E | 57411.391 | 33.7 | 31.0 | ||
Notes. For a description of the measurement procedures see Sect. 3.1. C, E, F, and H identify the spectrographs used: CES, ESPaDOns, FEROS, and HEROS, respectively. The ESPaDOns entry is the average over 40 spectra obtained within less than 1 h. The CES measurements are from Baade (1989a) and are based on He I 4471.5 and Mg II 4481.2 only. After ∼HJD 2451500, emission or shell absorption components of Hα were no longer visible. Colons (:) indicate uncertain measurements.
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