Table 3
Appearance of the Hα line in ν Pup at various times.
| Time | Spectrogr. | n | Appearance of Hα |
|---|---|---|---|
| 1995 May | HEROS | 1 | Very weak E, clear S |
| 1996 Mar | HEROS | 2 | Very weak E, clear S |
| 1996 May–Jun | HEROS | 6 | As in 1996 Mar |
| 1997 Jan–Apr | HEROS | 7 | Extrem. weak E, |
| Weakened S | |||
| 1999 Jan | FEROS | 1 | Extremely weak E, |
| Very weak S | |||
| 1999 May–Jun | HEROS | 5 | Almost no E, |
| Very weak S | |||
| 1999 Jul | FEROS | 2 | E and S weaker than |
| in 1999 Jan | |||
| 2000 Jan | FEROS | 1 | No E, no S |
| 2005 Jan | FEROS | 3 | No E, no S |
| 2016 Jan | ESPaDOns | 40 | No E, no S |
Notes. Significant variations in the Hα profile were only seen between the time intervals listed, not within any of them. Notations: n = number of spectra, E = emission, S = shell absorption. Julian Dates of the individual spectra (except for ESPaDOns) are presented in Table 4.
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