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Table 6

Stellar parameters measured from modelling X-Shooter spectra with FASTWIND.

Parameter Value err- err+

Teff 26 000 K –1700 +1200
log (g) 3.10 –0.15 +0.15
ξt 13km s-1 –2 +2
YHe 0.25 –0.1 + 0.1

Notes. According to standard notation, YHe is the abundance of He ratio ().

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