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Table 6.

Stellar atmospheric parameters for the blue stars derived from ISIS spectra.

Star Sp T v sin i Teff log g
(km s−1) (kK) (dex)
NGC 6649

9 B1 IIIe 170 25.0 ± 2.8 3.1 ± 0.2
14 B5 V 170 13.0 ± 1.0 3.0 ± 0.2
23 B7 III 210 13.0 ± 1.0 3.1 ± 0.2
28 B4 III 50 13.0 ± 1.0 2.8 ± 0.1
33 B6 IV 50 13.0 ± 1.6 3.1 ± 0.2
35 B5 V 130 14.0 ± 1.0 3.5 ± 0.1
42 B( * ), ( * *) B8 IV 310 13.0 ± 1.0 3.5 ± 0.2
48 B5 V 50 14.0 ± 1.0 3.6 ± 0.2
52 B5 V 250 14.0 ± 1.3 3.5 ± 0.2
58 B8 II 150 12.0 ± 1.0 3.2 ± 0.1

NGC 6664

50( * ) B9 IV 270 12.0 ± 1.0 4.1 ± 0.1
55 BN2 IV 50 21.0 ± 1.1 3.7 ± 0.1
56( * ) B6 IIIe 50 14.0 ± 1.0 3.6 ± 0.1
59( * ) B2.5 V 70 16.0 ± 1.0 3.8 ± 0.1
60 B6 IV 50 13.0 ± 1.0 3.6 ± 0.1
61 B3 IV 50 20.0 ± 1.0 3.9 ± 0.1
62 B6 IV 50 13.0 ± 1.0 3.7 ± 0.1
63 B5 III 90 14.0 ± 1.0 3.6 ± 0.1
64 B6 V 210 13.0 ± 1.0 3.7 ± 0.1
228 B5 Ve 290 15.0 ± 1.0 3.7 ± 0.1
A B6 IV 170 13.0 ± 1.0 3.7 ± 0.1

Berkeley 55

7 B4 IV 70 16.0 ± 1.0 3.3 ± 0.2
10 B6 IV 110 15.0 ± 1.1 3.6 ± 0.1
11 B6 IV 110 14.0 ± 1.0 3.5 ± 0.2
12 B6 IV 190 15.0 ± 1.0 3.3 ± 0.1
17 B5 V 70 16.0 ± 1.0 3.7 ± 0.1

Notes. ( * )Non-members. ( * *)Star observed with FEROS.

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