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Table 1

B-type supergiant sample.

ID# Object Sp. T.(a) Sp. T.(b) OB assoc.(c) V(d) mag BV(d) mag UB(d) mag Date of obs. YYYY-MM-DD Texp s S/N
FOCES R = 40 000
1 HD 7902 B6 Ib B6 Ia NGC 457 6.988 ± 0.023 0.414 ± 0.009 −0.380 ± 0.004 2001-09-27 896 320
2 HD 14818 B2 Ia B2 Ia Per OB1 6.253 ± 0.016 0.301 ± 0.007 −0.613 ± 0.009 2005-09-22 3 × 1200 320
3 HD 25914 B5 Ia B6 Ia Cam OB3 7.99 0.6 −0.28 2005-09-25 2700 180
4 HD 36371 B4 Ib B5 Ia Aur OB1 4.766 ± 0.014 0.345 ± 0.013 −0.445 ± 0.015 2001-09-30 240 480
5 HD 183143 B6 Ia B7 Ia(e) Field 6.839 ± 0.017 1.185 ± 0.018 0.165 ± 0.031 2001-09-25 900 220
6 HD 184943 B8 Ia/Iab B8 Iab Vul OB1 8.184 ± 0.016 0.725 ± 0.009 −0.073 ± 0.011 2005-09-25 1800 130
7 HD 191243 B6 Ib B5 Ib Cyg OB3 6.111 ± 0.022 0.151 ± 0.014 −0.447 ± 0.034 2005-09-21 900 350
8 HD 199478 B8 Ia B8 Ia NGC 6991 5.679 ± 0.018 0.461 ± 0.017 −0.341 ± 0.028 2001-09-26 1200 + 3 × 600 240
FEROS R = 48 000
9 HD 51309 B3 Ib/II B3 Ib(f) Field 4.380 ± 0.014 −0.064 ± 0.008 −0.704 ± 0.018 2011-12-09 2 × 45 440
10 HD 111990 B1/B2 Ib B2 Iab Cen OB1 6.792 ± 0.015 0.242 ± 0.006 −0.579 ± 0.008 2013-08-17 300 260
11 HD 119646 B1 Ib/II B1.5 Ib Field 6.602 ± 0.020 0.118 ± 0.007 −0.685 ± 0.022 2005-04-23 400 + 410 490
12 HD 125288 B5 Ib/II B5 II Field 4.336 ± 0.013 0.115 ± 0.007 −0.444 ± 0.007 2013-08-20 240 410
13 HD 159110 B4 Ib B2 II Field 7.578 ± 0.009 −0.022 ± 0.010 −0.685 ± 0.012 2005-04-23 2 × 1000 410
14 HD 164353 B5 I/Ib B5 Ib(e) Coll359 3.961 ± 0.019 0.023 ± 0.012 −0.606 ± 0.019 2013-08-20 135+180 540

Notes. (a)Adopted from SIMBAD. (b)This work. (c)Humphreys (1978). (d)Mermilliod (1997). (e)Gray & Corbally (2009). (f)Walborn’s B-type standards (Gray & Corbally 2009).

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