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Table 3

Cep OB1 stars lying inside GS 100–02–41.

Star l b Sp. Type MS Sp. Type MS lifetime (Myr) log ( (M yr-1)) Vw (km   s-1) Ew(1050 erg)

HDE 235673 984 –16 O6.5 V O6.5 5.6 –6.27 2700  ≤2.2
HD 209678 993 –18 B2 I B0 12 –7.17 1600 0.2
HD 209900 997 –17 A0 Ib B1 26 –8.2 2500 0.2
HD 210809 999 –31 O9 Iab O7 6.4 –6.39 2700 2.1
BD +51 3135 1006 –21 B3 II B0.5 14 –7.3 1850 0.2
HDE 235781 1012 –26 B6 Ib B1 22 –8.2 2500 0.2
BD +53 2820 1012 –17 B0 IV B0 16 –7.17 1600 0.2
BD +52 2833 1014 –21 B1 III O9.5 10 –7.04 2500 0.5
BD +53 2837 1015 –21 B2 III B0.5 14 –7.3 1850 0.2
HDE 235783 1017 –19 B1 Ib B0.5 14 –7.3 1850 0.2
BD +53 2843 1018 –22 O8 III O7 6.4 –6.39 2700 2.1
BD +54 2718 1020 –09 B2 III B0.5 14 –7.3 1850 0.2
BD +54 2726 1022 –10 B1.5 II B0.5 14 –7.3 1850 0.2
HDE 235813 1024 –20 B0 III O6 6.3 –6.14 2700 2.6
HILTNER 1106 1025 –07 B0 III O8 6.9 –6.65 2600 0.9
BD +53 2885 1027 –29 B2 III B0.5 14 –7.3 1850 0.2
HD 212455 1028 –17 B6 Ib B0.5 14 –7.3 1850 0.2
HDE 235825 1029 –18 O9 V O9 8 –6.91 2500  ≤0.6
BD +54 2764 1030 –17 B1 Ib B0.5 14 –7.3 1850 0.2
BD +54 2761 1031 –14 O6 III O3* 4.3 –5.43 3200  ≤16.3

References. * The bolometric magnitude and effective temperature given by Garmany & Stencel (1992) lie outside the evolutionary tracks of Schaller et al. (1992). We adopted the earliest spectral type for this star.

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