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Table 4

Astrophysical parameters and chemical abundances derived from our analysis.

Star log gS log gP ξ [Fe i/H] [Fe ii/H] [Na/Fe] [Al/Fe] [Si/Fe] [Ca/Fe] [Ti i/Fe] [Ti ii/Fe]  ⟨ [Ti/Fe] ⟩  [Ni/Fe]
(K) (K) (km s-1)

ONC
JW373 4924  ±  90 5200 3.2 3.2 1.8 −0.15  ±  0.17(18) −0.18  ±  0.25(4) 0.18  ±  0.20 0.13  ±  0.23 0.10  ±  0.20(1) 0.04  ±  0.18(3) 0.00  ±  0.17(2) ... ... −0.07  ±  0.24(3)
JW589 4620  ±  44 4750 3.5 3.5 1.9 −0.16  ±  0.01(29) −0.16  ±  0.07(3) 0.17  ±  0.10 0.21  ±  0.20 0.14  ±  0.11(3) 0.02  ±  0.09(2) 0.00  ±  0.10(5) 0.14  ±  0.09 0.07  ±  0.13 −0.08  ±  0.13(9)
JW601 4821  ±  60 4800 4.0 4.1 2.3 −0.14  ±  0.10(38) −0.12  ±  0.13(5) 0.11  ±  0.09 0.14  ±  0.07 0.14  ±  0.12(5) −0.02  ±  0.08(2) −0.08  ±  0.08(7) 0.18  ±  0.07 0.05  ±  0.11 −0.03  ±  0.07(13)
JW733  <4159  ±  121 ... ... 3.1 ... ... ... ... ... ... ... ... ... ... ...
JW868 4033  ±  84 4100 ... 3.8 1.0 −0.15  ±  0.20(32) ... −0.14  ±  0.23 −0.03  ±  0.24 0.15  ±  0.36(2) −0.19  ±  0.22(3) −0.22  ±  0.21(4) 0.40  ±  0.21 0.09  ±  0.29 0.03  ±  0.23(7)
JW157 4630  ±  33 4700 3.1 3.0 1.9 −0.15  ±  0.08(40) −0.12  ±  0.05(7) 0.12  ±  0.09 0.12  ±  0.14 0.14  ±  0.13(4) 0.02  ±  0.13(4) −0.05  ±  0.11(8) 0.20  ±  0.10 0.08  ±  0.15 −0.10  ±  0.13(19)
P1455 5826  ±  88 5950 4.1 3.8 1.8 0.11  ±  0.09(32) 0.11  ±  0.07(5) 0.03  ±  0.10 0.08  ±  0.11 0.01  ±  0.13(2) 0.00  ±  0.13(3) 0.02  ±  0.13(6) −0.13  ±  0.10 −0.06  ±  0.16 −0.10  ±  0.13(12)
ONCa −0.11  ±  0.11 −0.09  ±  0.12 0.12  ±  0.06 0.14  ±  0.05 0.11  ±  0.05 0.01  ±  0.02 0.05  ±  0.06 −0.06  ±  0.05
ONCb −0.15  ±  0.01 −0.15  ±  0.03 0.15  ±  0.04 0.15  ±  0.04 0.13  ±  0.02 0.02  ±  0.03 0.07  ±  0.01 −0.05  ±  0.05
ONCc −0.11  ±  0.08
ONCd −0.13  ±  0.03

OB1b
CVSO118 4222  ±  45 4300 ... 4.3 1.5 0.01  ±  0.12(39) ... −0.19  ±  0.12 −0.10  ±  0.12 0.11  ±  0.13(2) −0.19  ±  0.16(3) −0.30  ±  0.14(6) 0.43  ±  0.14 0.07  ±  0.20 −0.03  ±  0.16(19)
CVSO125 4226  ±  63 4300 ... 4.2 1.7 −0.03  ±  0.12(42) ... −0.15  ±  0.12 −0.04  ±  0.12 0.15  ±  0.16(2) −0.16  ±  0.12(2) −0.33  ±  0.13(6) 0.47  ±  0.13 0.07  ±  0.19 0.03  ±  0.15(11)
CVSO159 4139  ±  116 4000 ... 3.9 1.9 −0.12  ±  0.23(21) ... −0.09  ±  0.24 −0.09  ±  0.23 ... −0.10  ±  0.23(1) −0.36  ±  0.32(3) ... ... −0.01  ±  0.23(2)
CVSO165 4191  ±  127 4250 ... 3.7 1.4 −0.06  ±  0.06(22) ... −0.18  ±  0.07 0.02  ±  0.06 ... −0.06  ±  0.12(2) −0.22  ±  0.21(5) ... ... 0.04  ±  0.31(7)
CVSO56 4002  ±  38 4000 ... 4.0 1.2 −0.08  ±  0.15(33) ... ... ... ... ... ... ... ... ...
CVSO58 4047  ±  42 ... ... 4.0 ... ... ... ... ... ... ... ... ... ... ...
CVSO65 4180  ±  79 4100 ... 4.2 1.6 ... ... ... ... ... ... ... ... ... ...
OB1b −0.05  ±  0.05 0.12  ±  0.01 0.07  ±  0.01 0.01  ±  0.03

Notes. 

(a)

Mean abundances with P1455.

(b)

Mean abundances without P1455.

(c)

Mean abundances with P1455 and the D’Orazi et al. re-analysis (see Table 5).

(d)

Mean abundances without P1455 and the D’Orazi et al. re-analysis (see Table 5).

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