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Table 3

NGC 3766: stellar fundamental parameters of the BCD system.

ID Other D λ1 S.T Teff log    g Mv Mbol E(B−V) (mv−Mv)0 Vsin(i)
Ahmed designation [dex] [Å] [K] [dex] [mag] [mag] [mag] [mag] [km s-1]
1 ALS 2 398 0.203 32.07 B5 III 16 170 2.81  −4.05  −4.55 0.23 11.97 110
5 HD 306 794 0.110 41.75 B2 III 22 780 3.06  −4.56  −6.09 0.23 12.02 000
15 ALS 2 408 0.190 35.08 B4 III 17 660 2.80  −4.09  −4.51 0.29 11.72 110
24 CPD−60 3131 0.278 60.07 B5 V 15 110 4.24  −0.02  −1.58 0.25 10.54 370
26 CPD−60 3125 0.172 49.45 B2 IV 21 040 3.81  −2.51  −4.01 0.00 11.57 370
27 CPD−60 3128 0.202 45.05 B3 III 20 580 3.49  −2.58  −3.59 0.25 10.28pnm 180
30 CPD−60 3135 0.249 54.43 B4 V 18 080 4.11  −1.08  −2.20 0.07 11.97 300
55 CPD−60 3138 0.356 49.78 B7 IV 12 590 4.02  −0.54  −1.03 0.28 10.01pnm ···   
97 CPD−60 3098 0.193 46.92 B3 IV 20 250 3.62  −2.59  −3.68 0.16 11.70 60
151 CD−60 3626 0.224 52.17 B3 V 17 950 4.01  −1.56  −3.13 0.13 10.56 200
169 HD 100 969 0.148 37.06 B2 II 20 480 2.80  −4.60  −5.23 0.27 12.79 165
209 HD 306 800 0.206 54.51 B3 V 20 600 4.03  −1.65  −3.04 0.37 11.31 270
232 HD 100 943 dd 0.105 19.02 B3 Ia 15 680  <2.80  −7.00B  −8.37F 0.21 13.50pnm 75
239 HD 306 798 0.182 46.84 B3 IV 20 300 3.62  −2.53  −4.07 0.37 10.76 120
240 ALS 2 401 dd 0.217 30.94 B5 II 15 380  ~2.80  −4.01  −4.57 0.31 12.65 215
243 HD 308 740 0.245 61.60 B5 V 17 970 4.24  −1.11  −2.09 0.42 10.91 110
264 HD 306 657 dd 0.150 57.66 B2 V 25 740 4.04  −2.62  −4.13 0.43 11.78 170
291 HD 306 793 0.216 54.36 B3 V 18 490 4.04  −1.53  −3.10 0.34 11.14 360
301 CPD−60 3087 0.221 52.68 B3 V 18 150 4.01  −1.57  −3.12 0.00 12.47 335
316 BF Cen 0.138 46.60 B2 III 22 580 3.45  −3.60  −5.08 0.22 11.73 175
317 HD 306 785 0.177 47.10 B2 III 20 580 3.62  −2.59  −4.00 0.31 11.35 350
326 HD 100 840 0.179 32.86 B4 II 17 740  < 2.80  −4.61  −5.01 0.28 11.94 90
···    HD 306 644 0.314 36.53 B6 III 15 660 3.26  −2.10  −2.53 0.38 ···    115
···    HD 306 778 0.195 53.87 B3 V 20 310 4.00  −2.10  −3.61 0.00 11.90 140
···    HD 306 784 0.341 48.53 B7 IV 13 150 4.03  −0.01  −1.17 0.22 ···    ···   
···    HD 306 787 0.257 55.47 B5 V 16 220 4.11  −1.06  −2.03 0.35 ···    265
···    HD 306 788 0.191 53.50 B3 V 20 090 4.01  −2.06  −3.57 0.00 12.06 130
···    HD 308 743 0.227 52.99 B3 V 17 780 4.01  −1.52  −2.66 0.07 ···    430
···    HD 308 852 dd 0.273 45.36 B5 IV 15 570 3.83  −1.54  −2.21 0.14 11.19 ···   
···    NGC 3766 MG 29 0.221 55.77 B3 V 18 210 4.11  −1.58  −2.70 0.08 ···    415
···    NGC 3766 MG 116 0.245 60.61 B5 V 17 980 4.22  −1.10  −2.12 0.15 10.93 ···   
···    NGC 3766 MG 177 0.179 47.32 B3 IV 20 450 3.60  −2.53  −4.04 0.00 ···    190

Notes. g stellar surface gravity given in cm s-2.

(dd)

Stars with double Balmer discontinuity.

(B)

Values of Mv were adopted from Balona & Crampton (1974).

(F)

Mbol values were calculated using the bolometric correction given by Flower (1996).

(pnm)

Possible non-member stars.

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