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Table 3

Upper limits to X-ray luminosities of undetected massive stars.

SBL Second Third Spectral lim. log LX
Ident. Ident. type (erg/s)

20 HW 19 HD 326326 B2V 30.50
113 Se 28 HD 326327 B1.5IVe+shell 30.09
134 Se 30 B7V 30.02
157 Se 34 HD 326328 B1V 29.93
164 Se 33 B7V 29.92
175 Se 14 NSV 20801 B4IV 30.10
262 Se255 B6V 29.86
268 Se282 B2V+B2V 29.72
272 Se284 B4.5V 29.83
275 Se249 B4.5V 29.84
301 Se276 B8Vp 30.48
323 Se194 B3.5V 29.99
340 Se274 B3V 29.66
346 SS 62 CPD-41 772 B1V 30.90
349 Se295 B1V 29.64
351 SS 56 B1V 29.81
364 Se 6 CD-41 11031 B0V 29.97
374 Se70 HD 326340 B0.5V 31.03
378 Se286 B0.5V 29.69
403 Se287 CD-41 1103 B1V 29.63
410 Se243 B8.5V 29.71
422 Se 95 B8.5V 30.06
437 Se 80 V963 Sco B0Vn 29.91
447 Se 78 B8.5III 30.07
452 Se235 B8.5V 29.62
464 Se189 B8.5V 29.89
476 Se234 B8Vn 29.62
480 Se213 B2IVn 29.67
486 Se238 HD 326330 B1V(n) 29.65
497 Se 73 HD 326339 B0.5III 30.21
513 Se227 B7Vn 29.65
515 SS129 B1Vn 29.81
521 Se232 CPD-41 774 B0.5V 29.65
528 Se223 B6Vn 29.66
529 Se217 B6Vn 29.66
547 Se108 B2V 29.78
572 Se184 B8.5V 29.88
587 Se222 B4Vn 29.71
643 Se115 B3V 30.10
648 Se152 B5V 29.99
651 SS165 HD 326332 B1III* 29.98
702 Se173 B9V 30.11
712 Se150 HD 326333 B1V(n) 29.97
717 Se123 B6.5V 30.21
726 B9V 30.20
773 Se147 B9.5V 30.18

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