Table 5: Projected rotational velocities inferred from the O-star absorption lines, assuming that the broadening of the lines is due only to Doppler broadening. Values have been corrected by the 2.6-pixel resolution.
Line FWHM (Å) Velocity (km s^-1)

H $\epsilon$ + HeII $\lambda$ 3968 6.72 195

HeII $\lambda$ 4025 + HeI $\lambda$ 4026 5.51 158

H $\delta$ + HeII $\lambda$ 4100 7.43 209

HeII $\lambda$ 4200 6.61 181

H $\gamma$ + HeII $\lambda$ 4338 7.19 191

**Table 5:** Projected rotational velocities inferred from the O-star absorption lines, assuming that the broadening of the lines is due only to Doppler broadening. Values have been corrected by the 2.6-pixel resolution.
Line	FWHM (Å)	Velocity (km s^-1)
H $\epsilon$ + HeII $\lambda$ 3968	6.72	195
HeII $\lambda$ 4025 + HeI $\lambda$ 4026	5.51	158
H $\delta$ + HeII $\lambda$ 4100	7.43	209
HeII $\lambda$ 4200	6.61	181
H $\gamma$ + HeII $\lambda$ 4338	7.19	191

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