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Table 4
Temporal evolution of the atmospheric parameters as derived from our spectral analysis.
| Year | Teff | log g | log Ṁ | v∞ | Code | |
| [kK] | [cm/s2] | [M⊙/yr] | [km s-1] | |||
|
|
||||||
| 1988 | 38 | 4.8 | −9.0 | 1800 | PoWR | |
| 1992 | 43 | 5.0 | −9.0 | 1800 | PoWR | |
| 1993 | 44 | 5.0 | −9.1 | 2100 | PoWR | |
| 1994 | 48 | 5.2 | −10.0 | 2100 | PoWR | |
| 1995 | 50 | 5.2 | −10.0 | 2400 | PoWR | |
| 1996 | 50 | 5.2 | −10.0 | 2800 | PoWR | |
| 1997 | 50 | 5.5 | TMAP | |||
| 1999 | 55 | 6.0 | TMAP | |||
| 2002 | 60 | 6.0 | −11.3 | 2800 | TMAP/PoWR | |
| 2006 | 55 | 6.0 | −11.6 | 2800 | TMAP/PoWR | |
Notes. Typical errors are ΔTeff = ± 5 kK, Δlog g = ± 0.5, ΔṀ = ± 0.2 dex, and Δv∞ = ± 200 km s-1.
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