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Table 1

List of studied stars.

PDS 2MASS ST E(B − V) J − H H − K K −  [25]  J −  [18]   [9]  −  [18]   [12]  −  [25]   [25]  −  [60]  W Hα P
mag mag mag mag mag mag mag mag Å %
018 05534254-1024006 B7 1.42 2.17 1.68 7.41 10.26 2.04 0.42 0.10 40 –
027 07193593-1739180 B2 1.41 1.47 1.32 8.15 9.78 2.39 0.84 0.50 88 –
037 10100032-5702073 B2 1.60 1.86 1.40 8.28 10.34 2.55 1.04 1.00 105 2.76
067 13524285-6332492 B 1.56 1.59 1.49 6.23 8.56 1.51 0  −0.24 90 2.73
141 12531722-7707106 ? – 2.32 1.82 7.95 11.06 2.43 0.84 0.22 40
168 04305028+2300088 F0 2.14 1.74 1.19 6.51 8.53 1.87 0.19  −0.45 8 5.84
174 05065551-0321132 B3 1.01 0.76 0.65 10.38 – – 1.17 1.95 65 –
193 05380931-0649166 B9 1.34 0.97 0.99 7.20 8.18 1.86 0.16 0.52 12 2.25
198 05385862-0716457 F0 1.13 1.03 1.01 6.95 7.60 2.79 1.70 1.07 9 –
204 05501389+2352177 B1 1.10 1.24 1.22 9.68 10.73 3.31 2.00 0.96 245 –
207 06071539+2957550 B? 1.20 1.18 1.21 8.20 – – 0.62 1.77 5 –
216 06235631+1430280 B2 1.19 1.32 1.28 8.14 9.59 1.65 0.33 2.03 200 –
257 07414105-2000134 A 0.89 1.20 1.21 7.81 – – 0.35 1.77 15 –
290 09261107-5242269 A 0.66 0.35 0.28 10.9 – – 0.26 2.33  −7 1.74
353 12222318-6317167 B5 0.99 1.31 1.17 8.28 9.68 1.97 0.45 2.00 200 2.17
371 13473141-3639495 O9? 1.40 1.74 1.31 7.17 9.18 2.36 0.58  −0.1 40
394 15351712-6159041 F0 0.44 0.51 0.52 11.45 11.17 3.34 1.51  −0.7  −2 2.25
406 16050392-3945034 A5 0.40 1.08 1.05 8.33 9.19 1.95 0.79 1.94 13 3.20
431 16545918-4321496 A0 0.52 0.17 0.16 13.88 – – 2.00 2.29 8 0.23
465 17451419-1756469 B 1.23 1.36 1.48 8.37 9.73 – 1.51 0.88 110 7.88
477 18003031-1647259 B1 1.37 1.43 1.19 7.42 9.08 2.22 0.41  −0.01 120 1.40
518 18273952-0349520 OB 2.30 1.74 1.35 6.85 – – 0.37 1.53 600 3.80
520 18300616+0042336 F3 1.26 1.23 1.09 6.88 8.13 2.21 0.70 0.47 33 3.67
530 18413436+0808207 A5 0.47 1.59 1.66 7.93 9.92 2.12 0.52  −0.07 28 11.06
543 18480066+0254170 B0 1.79 0.48 0.40 8.91 8.93 3.82 1.92 0.41 0.8 1.14
551 18552297+0404353 B0 1.92 1.53 1.26 8.16 9.49 2.15 0.57 0.57 50 11
581 19361890+2932500 B1 0.89 1.98 1.72 8.58 10.82 – 1.33 0.74 200 12.22

Notes. Column description: (1) PDS name; (2) 2MASS identification; (3) spectral type; (4) B − V excess; (5–11) infrared colors; (12) Hα equivalent width (negative values represent absorption lines); (13) intrinsic polarization.

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