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Table B.1

O/B stars I.

Id RA Dec ΔRA ΔDec KSa Colour Name Type Noteb S/N
[″] [″] [mag]
64 266.41745 −29.007652 −1.632 0.570 10.74 ... IRS16CC O9.5-B0.5 4,5 88.4
96 266.41437 −29.007425 6.613 1.387 10.44 ... ... ... 3 82.3
109 266.41724 −29.008343 −1.060 −1.916 10.57 ... MPE+1.0-7.4(16S) B0.5-1 4,5 92.7
166 266.41397 −29.009418 7.660 −5.788 11.26 ... ... ... 1,5,7 100.2
205 266.41882 −29.007736 −5.305 0.268 11.18 ... IRS1E B1-3 4 78.0
209 266.41571 −29.009912 3.014 −7.567 11.19 ... ... ... 3? 38.8
227 266.41742 −29.009571 −1.548 −6.338 11.43 ... ... ? 2 84.5
230 266.41681 −29.005444 0.082 8.521 11.19 ... ... O9-B 2,5 81.3
273 266.41684 −29.004976 −0.000 10.204 11.44 ... ... O9-B 2,5 95.8
294 266.41681 −29.008450 0.082 −2.300 11.14 ... IRS33N B0.5-1 4,5 85.4
331 266.41705 −29.008289 −0.571 −1.723 11.34 ... IRS16SSW O8-9.5 4 56.4
366 266.41705 −29.010412 −0.570 −9.366 11.62 ... ... ... 1,5 66.3
372 266.41827 −29.008778 −3.832 −3.481 11.81 ... ... ... 4 71.0
436 266.41968 −29.003155 −7.622 16.761 11.69 fg ... ... 1,7 70.4
443 266.41730 −29.008221 −1.224 −1.476 12.09 ... IRS16SSE1 O8.5-9.5 4 47.1
445 266.41647 −29.005707 0.981 7.574 11.67 ... ... O9-B 2,5 54.5
483 266.42029 −29.005968 −9.237 6.633 11.96 ... IRS 5SE B3 8 78.8
507 266.41632 −29.008602 1.386 −2.850 11.95 ... ... O8.5-9.5 2 66.2
508 266.41867 −29.007784 −4.897 0.096 12.23 ... ... O9.5-B2II 4 62.6
511 266.41458 −29.010035 6.027 −8.006 12.10 ... ... ... 1,5 61.4
516 266.41754 −29.006582 −1.879 4.422 11.44 ... ... B0-3 2 70.4
562 266.41690 −29.007578 −0.163 0.838 12.26 ... S1-3 ? 4 22.8
567 266.41855 −29.006989 −4.574 2.959 11.87 ... ... ... 3,5 75.4
596 266.41837 −29.009346 −4.075 −5.527 12.29 ... ... ... 1 71.7
610 266.41849 −29.009783 −4.399 −7.100 11.99 ... ... ... 1 54.4
617 266.41415 −29.009539 7.171 −6.221 12.51 ... ... ... 1 64.8
663 266.42368 −29.002535 −18.368 18.993 12.20 fg ... ... 1 73.8
668 266.41711 −29.008015 −0.734 −0.735 12.54 ... ... ... 4 40.3
707 266.41733 −29.008621 −1.305 −2.918 12.32 ... ... B0-3 4,5 28.3
716 266.41733 −29.009823 −1.303 −7.244 12.62 ... ... ... 3 48.4
718 266.41608 −29.010204 2.036 −8.617 12.71 ... ... ... 1 35.8
721 266.41904 −29.006376 −5.884 5.164 12.23 ... ... ... 1 41.4
722 266.41489 −29.010849 5.209 −10.938 12.72 ... ... ... 1 58.0
725 266.41602 −29.008396 2.202 −2.108 12.27 ... ... O9-B0 2 41.2
728 266.41425 −29.008633 6.932 −2.959 12.35 ... ... ... 3 26.8
757 266.41400 −29.008787 7.583 −3.516 12.12 ... ... ... 1,5 48.6
762 266.41788 −29.008120 −2.774 −1.112 12.17 ... IRS16SE3 O8.5-9.5 4 25.5
785 266.41705 −29.008959 −0.571 −4.134 12.30 ... ... B0-1 4 38.8
838 266.41455 −29.006830 6.126 3.529 12.28 ... ... ... 3 68.4
847 266.41595 −29.008617 2.365 −2.905 12.15 ... ... B0-1 2 46.2
853 266.41730 −29.010958 −1.221 −11.330 12.45 ... ... ... 1 74.2
890 266.42026 −29.006920 −9.148 3.207 12.86 ... ... ... 6 54.2
900 266.41632 −29.007969 1.387 −0.570 12.65 ... [GEO97]W14 O8.5-9.5 4 30.0
936 266.41479 −29.009893 5.458 −7.498 12.73 ... ... ... 1 26.1
941 266.41693 −29.007181 −0.245 2.266 12.53 ... ... O9-B0 4 45.4
951 266.41989 −29.006598 −8.170 4.367 13.00 ... ... OB 2 59.7
958 266.41415 −29.008760 7.176 −3.419 12.61 ... ... ... 3 24.7
973 266.41489 −29.008347 5.221 −1.929 14.17 ... ... ... 3? 50.9
974 266.41782 −29.009180 −2.608 −4.930 12.96 ... ... ... 3 45.0
982 266.40979 −29.010162 18.812 −8.466 12.84 ? ... ... 1 47.4
1048 266.41983 −29.007536 −8.000 0.989 13.11 ... ... ... 4 50.6
1103 266.41342 −29.008680 9.133 −3.131 15.97 ... ... ... 1 34.7
1104 266.42184 −29.004236 −13.427 12.868 13.14 fg ... ... 1 47.1
1123 266.41641 −29.007929 1.142 −0.426 12.92 ... [GEO97]W10 O8-9.5 4 26.2
1134 266.41507 −29.009359 4.727 −5.576 15.69 ... ... ... 1 24.1
1238 266.41629 −29.007799 1.469 0.041 13.34 ... [GEO97]W7 O9-9.5 2 24.9
1245 266.41968 −29.007692 −7.591 0.426 13.35 ... ... ... 4 32.6
1327 266.41507 −29.008177 4.732 −1.318 12.71 ... ... ... 3 44.9
1350 266.41626 −29.009369 1.548 −5.610 13.32 ... ... ... 3 34.2
1474 266.41684 −29.007048 −0.000 2.747 13.02 ... ... O8-9 4 28.0
1534 266.41632 −29.008284 1.387 −1.703 13.34 ... [RGH2007] GEN-1.70-1.65 O-B 4 29.0
1554 266.41446 −29.008282 6.363 −1.696 13.19 ... ... ... 3? 50.8
1619 266.41660 −29.008102 0.653 −1.051 14.18 ... S1-8 ... 4 19.7
1643 266.41641 −29.005293 1.145 9.064 13.78 ... ... O9-B0 2 32.9
1892 266.41644 −29.006804 1.062 3.625 13.45 ... ... O8-9 2 16.3
1935 266.41434 −29.006641 6.699 4.209 13.38 ... ... ... 1 27.0
2048 266.41342 −29.010553 9.118 −9.874 15.70 ? ... ... 1 16.7
2233 266.41656 −29.007904 0.734 −0.336 13.81 ... S0-14 O9.5-B2 4 23.1
2314 266.41681 −29.007795 0.082 0.055 14.38 ... S2,S0-2 B0-2 4 25.4
2420 266.41687 −29.009148 −0.082 −4.813 13.86 ... ... ... 4 19.9
2446 266.42099 −29.003845 −11.139 14.275 14.05 ... ... ... 1 22.4
3308 266.41364 −29.011532 8.540 −13.396 14.79 fg ... ... 1 16.9
3339 266.42307 −29.007935 −16.647 −0.446 14.50 fg ... ... 1 19.4
3578 266.41916 −29.009645 −6.192 −6.606 14.22 ... ... ... 1 20.2
3773 266.41422 −29.008575 7.014 −2.753 14.92 ? [RGH2007] GEN-1.70-1.65 O-B 2 34.4
11652 266.41449 −29.007727 6.285 0.302 ... ? ... ... 3? 15.2

Notes. The table lists the stellar identification number Id, the coordinates in RA and Dec, and the offset coordinates from Sgr A* ΔRA and ΔDec in arcseconds (RASgrA ∗ = 266.41684°, DecSgrA ∗ = −29.00781056°). The KS magnitude was extinction corrected and shifted to a common extinction of AKs = 2.70 mag. We list the five probable foreground stars in the colour column. If the star war previously listed and classified, we denote the name and type. Column “Note” lists the reference to the stellar identification as an early-type star. Column “S/N” denotes the signal-to-noise ratio.

(a)

KS magnitudes from Schödel et al. (2010), extinction corrected and shifted to a common extinction of AKs = 2.70 mag;

(b)

(1) first spectroscopic classification reported in this work; (2) spectral type from Paumard et al. (2006); (3) spectral type from Bartko et al. (2009); (4) spectral type from Do et al. (2013); (5) photometric early-type candidate from Nishiyama & Schödel (2013); (6) classified as early-type star by Støstad et al. (2015); (7) early-type star candidate from Feldmeier et al. (2014); (8) classified as early-type star by Perger et al. (2008). “fg” denotes a likely foreground star.

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