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Table 1

The star sample: id, spectral type, OB association membershipa, photometryb, and observational detailsc.

# Object Sp. Td Sp. Te OB Assoc. V B − V U − B Date T exp S/NV
mag mag mag s
FOCES  R = 40 000
1 HD 12301 B8 Ibf B8 Ib Field 5.589 ± 0.011 0.370 ± 0.014 −0.276 ± 0.009 30/09/2001 480 203
2 HD 12953 A1 Iaef A1 Iae Per OB1 5.691 ± 0.021 0.614 ± 0.007 −0.014 ± 0.009 26/09/2001 300 230
3 HD 13476 A3 Iab A3 Iab Per OB1 6.431 ± 0.020 0.600 ± 0.013 0.220 ± 0.028 30/09/2001 900 202
4 HD 13744 A0 Iab A0 Iab Per OB1 7.592 ± 0.014 0.741 ± 0.012 0.180 ± 0.000 27/09/2005 2700 182
5 HD 14433 A1 Iaf A1 Ia Per OB1 6.401 ± 0.019 0.567 ± 0.008 0.030 ± 0.010 30/09/2001 600 217
6 HD 14489 A2 Ia f A1 Iab Per OB1 5.178 ± 0.009 0.369 ± 0.004 −0.110 ± 0.000 26/09/2001 360 246
7 HD 20041 A0 Ia A0 Ia Cam OB1 5.795 ± 0.019 0.712 ± 0.020 0.090 30/09/2001 600 234
8 HD 21291 B9 Iaf B9 Ia Cam OB1 4.213 ± 0.019 0.412 ± 0.008 −0.234 ± 0.009 26/09/2001 2  ×  240 259
9 HD 39970 A0 Ia A0 Ia Field 6.018 ± 0.004 0.386 ± 0.005 −0.192 ± 0.010 30/09/2001 600 270
10 HD 46300 A0 Ibf A0 Ib Mon OB1 4.498 ± 0.008 0.007 ± 0.009 −0.217 ± 0.041 29/09/2005 180 206
11 HD 186745 B8 Ia B8 Ia Vul OB1 7.030 ± 0.008 0.930 ± 0.002 0.028 ± 0.007 25/09/2001 900 163
12 HD 187983 A1 Ia A1 Ia Field 5.590 ± 0.026 0.684 ± 0.017 0.173 ± 0.149 25/09/2001 300 187
13 HD 197345 A2 Iag A2 Ia Cyg OB7 1.246 ± 0.015 0.092 ± 0.007 −0.233 ± 0.008 21/09/2005 8  ×  20 798
14 HD 202850 B9 Iabf B9 Iab Cyg OB4 4.233 ± 0.009 0.123 ± 0.011 −0.386 ± 0.026 29/09/2001 120 231
15 HD 207260 A2 Iabf A2 Iab Cep OB2 4.289 ± 0.007 0.518 ± 0.011 0.119 ± 0.018 26/09/2001 120 370
16 HD 207673 A2 Ibf A2 Ib Field 6.467 ± 0.005 0.410 ± 0.000 0.060 29/09/2001 720 195
17 HD 208501 B8 Ibf B8 Ib Cep OB2 5.796 ± 0.004 0.724 ± 0.008 −0.022 ± 0.007 26/09/2001 480 231
18 HD 210221 A3 Ibf A3 Ib Field 6.140 ± 0.000 0.414 ± 0.017 0.240 ± 0.000 26/09/2001 720 271
19 HD 212593 B9 Iab f B9 Ib Field 4.569 ± 0.018 0.086 ± 0.004 −0.342 ± 0.006 29/09/2001 2  ×  180 403
20 HD 213470 A3 Ia A3 Iab Cep OB1 6.650 0.560 0.240 29/09/2001 900 249
21 BD+602582 B8 Iab B8 Iab Cas OB2 8.694 ± 0.261 0.770 ± 0.016 0.017 ± 0.011 27/09/2001 2400 140
22 HD 223960 A0 Ia f B9 Ia Cas OB5 6.895 ± 0.009 0.715 ± 0.009 −0.050 ± 0.047 25/09/2001 1200 226
FOCES  R = 65 000
23 HD 195324 A1 Ib A1 Ib Field 5.880 ± 0.000 0.524 ± 0.014 0.100 07/10/2001 2  ×  1000 618
FEROS  R = 48 000
24 HD 34085 B8 Iag B8 Ia Ori OB1 0.138 ± 0.032 −0.029 ± 0.004 −0.666 ± 0.018 14/11/1998 20 634
25 HD 87737 A0 Ibg A0 Ib Field 3.486 ± 0.053 −0.026 ± 0.015 −0.206 ± 0.028 21/01/1999 120 440
26 HD 91533 A2 Iab A2 Iab Car OB1 6.005 ± 0.019 0.318 ± 0.011 −0.075 ± 0.034 23/05/2007 100 229
27 HD 111613 A2 Iabe A1 Ia Cen OB1 5.741 ± 0.019 0.384 ± 0.022 −0.088 ± 0.026 23/01/1999 600 376
28 HD 149076 B8 Iab B9 Ib Ara OB1b 7.373 ± 0.018 0.485 ± 0.009 −0.118 ± 0.021 24/05/2007 280 230
29 HD 149077 B9 Ib A0 Ib Ara OB1a 7.433 ± 0.082 0.470 ± 0.021 0.097 ± 0.049 24/05/2007 310 261
30 HD 165784 A2/A3 Iab A2 Iab Sgr OB1 6.538 ± 0.016 0.856 ± 0.005 0.279 ± 0.056 09/07/2007 140 145
31 HD 166167 B9.5 Ib A0 Ib Sgr OB1 8.605 ± 0.009 0.560 ± 0.000 0.036 ± 0.047 09/07/2007 610 117
UVES  R = 80 000
32 HD 80057 A1 Ib A1 Iab Vela OB1h 6.044 ± 0.016 0.285 ± 0.006 −0.117 ± 0.021 24/02/2003 2  ×  50 293
33 HD 102878 A2 Iab A2 Iab Cru OB1 5.695 ± 0.017 0.265 ± 0.009 −0.119 ± 0.057 06/01/2002 54 + 139 442
34 HD 105071 B8 Ia/Iab B8 Iab Field 6.316 ± 0.024 0.200 ± 0.010 −0.436 ± 0.034 26/02/2002 2  ×  74 382
35 HD 106068 B8 Ia/Iab B8 Iab Field 5.920 ± 0.010 0.297 ± 0.007 −0.284 ± 0.151 20/07/2001 2  ×  53 415

Notes. 

(c)

note that the exposure times for UVES objects can vary in different wavelength bands;

(d)

adopted from the SIMBAD database at CDS, set in italics if a revision appears to be required (see next column);

(e)

this work;

(f)

MK standards from Johnson & Morgan (1953);

(g)

anchor points of the MK system (Garrison 1994);

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