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Table 5

Comparison of mass-loss rates derived by Oskinova et al. (2011) from Si iv lines and the rates predicted from the stellar effective temperature using Eq. (1).

Star T eff [K] log (/1 M year-1)
Oskinova et al. Prediction Eq. (1)

τ Sco 30 700 –8.6 –8.6
β Cep 25 100 –9.1 –9.2
ξ1 CMa 27 000 –10 –8.9
V2052 Oph 23 000 –9.7 –9.6
ζ Cas 20 900 –9.7 –10.2

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