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Table 6

Helium and nitrogen abundances for the LMC sample with stellar parameters from Table 4.

Star v   sin   i YHe [N] Δ[N] Δ[N]cl Literature

N11-026 72 0.10 7.801  + 0.40 0.25–0.30
7.752  + 0.40
N11-031 71 0.11 7.831  ± 0.15 8.00 ± 0.18
8.302  ± 0.15
N11-038 100 0.08 7.85  ± 0.15 0.05–0.10
Sk–66° 100 59 0.19 8.483  ± 0.15
N11-032 60 0.09 7.87  ± 0.15 0.05–0.10
N11-045 64 0.07 6.98  ± 0.20
BI253 230 0.08 7.90  ± 0.15 0.15–0.20
BI237 140 0.09 7.38  ± 0.15 0.05–0.10
N11-060 68 0.12 8.201 +0.30 0.05–0.10
8.152 +0.30
Sk–70° 69 131 0.14 8.053  ± 0.15 0.15–0.20
N11-051 350 0.08 7.583  ± 0.20
N11-058 62 0.10 8.09  ± 0.15
Sk–66° 18 75 0.14 8.483  ± 0.15
N11-065 60 0.13 8.173  ± 0.15 0.05–0.10
N11-066 59 0.10 8.17  ± 0.20 0.05–0.10
N11-068 30 0.10 7.85  ± 0.20 0.05–0.10
N11-061 54 0.09 7.18  ± 0.15
N11-123 115 0.09 7.00  ± 0.15
N11-087 260 0.10 7.38  −0.204

N11-029 46 0.08 7.43  ± 0.15 7.10 ± 0.35
N11-036 39 0.08 7.85  ± 0.17 7.76 ± 0.11
N11-008 46 0.10 8.08  ± 0.11 7.84 ± 0.11
N11-042 21 0.08 7.00  ± 0.15 6.92 ± 0.24
N11-033 256 0.10 7.28  −0.204
N11-072 14 0.10 7.68  ± 0.15 7.38 ± 0.06

Notes. [N] is our best-fitting value, Δ[N] the corresponding uncertainty, and Δ[N]cl the change in [N] (always positive) if clumping with f = 0.1 is included in the models (Sect. 4.5.1). Values displayed in italics were derived by the “curve-of-growth” method. Literature values are from Walborn et al. (2004) for N11-031 and from Hunter et al. (2009) for the B-stars and N11-029. When two entries are provided, the first one corresponds to our preferred solution, except for N11-031 where we consider both solutions to be possible.

(1)

From N iii/N iv, uncertainty from N v.

(2)

From N iv/N v, uncertainty from N iii.

(3)

Improvement of N ivλ4058 fit with weak clumping.

(4)

Uncertainty of upper limit.

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