2014ApJS..215...15S

Query : 2014ApJS..215...15S

2014ApJS..215...15S - Astrophys. J., Suppl. Ser., 215, 15 (2014/November-0)

Southern MAssive Stars at High angular resolution: observational campaign and companion detection.

SANA H., LE BOUQUIN J.-B., LACOUR S., BERGER J.-P., DUVERT G., GAUCHET L., NORRIS B., OLOFSSON J., PICKEL D., ZINS G., ABSIL O., DE KOTER A., KRATTER K., SCHNURR O. and ZINNECKER H.

Abstract (from CDS):

Multiplicity is one of the most fundamental observable properties of massive O-type stars and offers a promising way to discriminate between massive star formation theories. Nevertheless, companions at separations between 1 and 100 milliarcsec (mas) remain mostly unknown due to intrinsic observational limitations. At a typical distance of 2 kpc, this corresponds to projected physical separations of 2-200 AU. The Southern MAssive Stars at High angular resolution survey (SMaSH+) was designed to fill this gap by providing the first systematic interferometric survey of Galactic massive stars. We observed 117 O-type stars with VLTI/PIONIER and 162 O-type stars with NACO/Sparse Aperture Masking (SAM), probing the separation ranges 1-45 and 30-250 mas and brightness contrasts of ΔH < 4 and ΔH < 5, respectively. Taking advantage of NACO's field of view, we further uniformly searched for visual companions in an 8'' radius down to ΔH = 8. This paper describes observations and data analysis, reports the discovery of almost 200 new companions in the separation range from 1 mas to 8'' and presents a catalog of detections, including the first resolved measurements of over a dozen known long-period spectroscopic binaries. Excluding known runaway stars for which no companions are detected, 96 objects in our main sample (δ < 0°; H < 7.5) were observed both with PIONIER and NACO/SAM. The fraction of these stars with at least one resolved companion within 200 mas is 0.53. Accounting for known but unresolved spectroscopic or eclipsing companions, the multiplicity fraction at separation ρ < 8'' increases to fm= 0.91±0.03. The fraction of luminosity class V stars that have a bound companion reaches 100% at 30 mas while their average number of physically connected companions within 8'' is fc= 2.2±0.3. This demonstrates that massive stars form nearly exclusively in multiple systems. The nine non-thermal radio emitters observed by SMaSH+ are all resolved, including the newly discovered pairs HD 168112 and CPD-47°2963. This lends strong support to the universality of the wind-wind collision scenario to explain the non-thermal emission from O-type stars.

Abstract Copyright: ∼

Journal keyword(s): binaries: visual - stars: early-type - stars: imaging - surveys - techniques: high angular resolution - techniques: interferometric

VizieR on-line data: <Available at CDS (J/ApJS/215/15): table1.dat table2.dat table3.dat table5.dat table6.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD; there are some issues with cross-identifications or classifications.

Simbad objects: 198

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Number of rows : 198
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
2 * tet01 Ori C SB* 05 35 16.4662967280 -05 23 22.921811880 4.20 5.15 5.13 4.91 4.73 O7Vp 1479 1
3 HD 46056 Y*O 06 31 20.8608343776 +04 50 03.842554740 7.60 8.36 8.16 8.16 8.09 O8Vn 242 0
4 HD 46149 Y*O 06 31 52.5319291296 +05 01 59.178678024 7.03 7.80 7.61 7.54 7.36 O8.5V 288 0
5 HD 46150 Y*O 06 31 55.5205071744 +04 56 34.296516096 6.03 6.86 6.73 6.50 6.41 O5V((f))z 413 0
6 NGC 2244 OpC 06 32 06.9 +04 54 19           ~ 673 1
7 HD 46223 Y*O 06 32 09.3068103600 +04 49 24.705695568 6.73 7.50 7.28 6.95 6.79 O4V((f)) 406 0
8 HD 46202 bC* 06 32 10.4706981304 +04 57 59.764912343 7.60 8.332 8.269 7.98 7.86 O9.2V 300 0
9 HD 46485 Y*O 06 33 50.9566745256 +04 31 31.613196504 7.92 8.60 8.27   8.10 O7V((f))nzvar? 162 0
10 HD 46573 SB* 06 34 23.5692982800 +02 32 02.944339980 7.61 8.27 7.93     O7V((f))z 143 0
11 HD 46966 ** 06 36 25.8880460976 +06 04 59.474397540 5.91 6.83 6.87     O8.5IV 218 0
12 HD 47129 SB* 06 37 24.0420854544 +06 08 07.369104444 5.23 6.11 6.06     O8I+O7.5III 420 0
13 HD 47432 Pu* 06 38 38.1872868432 +01 36 48.675208608 5.67 6.44 6.31 6.11 6.04 O9.7Ib 194 1
14 * 15 Mon Be* 06 40 58.65963 +09 53 44.7229 3.360 4.45 4.68   4.88 O7V+B1.5/2V 823 0
15 HD 48099 Be* 06 41 59.2308626256 +06 20 43.532571372 5.38 6.32 6.37 6.30 6.35 O5V((f))z+O9:V 310 0
16 HD 48279 * 06 42 40.5471009337 +01 42 58.252284586 7.26 8.02 7.96 8.72   O8.5VzNstrvar? 173 0
17 HD 51480 Be* 06 57 09.3836145600 -10 49 28.065280368 6.66 7.24 6.93 7.78   B3/5Ibe 97 0
18 HD 51533 * 06 58 13.4521704192 +14 14 57.174182700   7.48 7.35     A5 14 0
19 HD 52266 SB* 07 00 21.0763468632 -05 49 35.954203044 6.32 7.22 7.23     O9.5IIIn 125 0
20 HD 52533 SB* 07 01 27.0486333888 -03 07 03.286283952 6.66 7.57 7.68     O8.5IVn 123 0
21 HD 53975 SB* 07 06 35.9651934840 -12 23 38.220633600 5.38 6.40 6.50 6.51   O7.5Vz 206 0
22 HD 54662 SB* 07 09 20.2493151288 -10 20 47.635088964 5.35 6.24 6.21 7.23   O6.5Vz(n)+O7.5Vz 354 0
23 HD 54879 SB* 07 10 08.1487629504 -11 48 09.838940004 6.8 7.60 7.65     O9.7V 98 0
24 HD 55879 * 07 14 28.2529558464 -10 18 58.483822572 4.88 5.85 6.03 7.35   O9.7III 180 0
25 * 29 CMa SB* 07 18 40.3789353696 -24 33 31.318248528 3.80 4.80 4.95 4.95 5.08 O7Iafpvar 433 0
26 * tau CMa SB* 07 18 42.4849951654 -24 57 15.700749738 3.26 4.25 4.40 4.44 4.62 O9II 439 0
27 HD 57682 * 07 22 02.0546074728 -08 58 45.766323408 5.20 6.24 6.43     O9.2IV 275 0
28 HD 58978 Be* 07 26 59.4826856664 -23 05 09.689679528 4.51 5.45 5.56 7.05   B0.5IVe 248 0
29 HD 60848 Be* 07 37 05.7325392528 +16 54 15.300327852 5.55 6.67 6.87     O8:V:pe 150 0
30 * zet Pup BY* 08 03 35.04754 -40 00 11.3321 0.89 1.98 2.25 2.36 2.58 O4I(n)fp 1190 1
31 HD 68450 * 08 11 01.6832319648 -37 17 32.549289720 5.58 6.42 6.44 7.43   O9.7II 142 0
32 HD 71304 * 08 24 55.7882010048 -44 18 03.006513144 8.52 8.98 8.45 7.93 7.51 O9II 78 0
33 HD 73882 ** 08 39 09.53412 -40 25 09.2608 7.07 7.59 7.19 6.67 6.30 O8.5IV 261 1
34 HD 74194 HXB 08 40 47.7915253032 -45 03 30.235569624 7.05 7.77 7.55 8.70   O8.5Ib-II(f)p 220 0
35 HD 74920 * 08 45 10.3405991688 -46 02 19.239667872 6.64 9.46 9.09 8.58   O7.5IVn((f)) 77 0
36 HD 75211 SB* 08 47 01.5921294816 -44 04 28.848481212 7.35 7.90 7.50 8.28   O8.5II((f)) 99 0
37 HD 75222 s*b 08 47 25.1378783304 -36 45 02.670440616 7.24 7.80 7.42 8.22   O9.7Iab 102 0
38 Ass Vel OB 1 As* 08 49.9 -45 00           ~ 104 0
39 HD 75759 SB* 08 50 21.0167636904 -42 05 23.247034188 4.95 5.90 6.00 7.18   O9V+B0V 147 0
40 HD 76341 Em* 08 54 00.6139723224 -42 29 08.763425340 6.88 7.392 7.163 8.08   O9.2IV 118 1
41 HD 76535 * 08 55 00.4504234680 -47 24 57.457226556 8.45 9.19 9.45 9.32   O9/B0 43 0
42 HD 76556 * 08 55 07.1436167808 -47 36 27.161751528 8.03 8.61 8.20 8.90   O6IV(n)((f))p 80 1
43 HD 76968 V* 08 57 28.8524478672 -50 44 58.197488784 6.53 7.33 7.21 7.01 6.87 O9.2Ib 99 1
44 CD-47 4551 s*b 08 57 54.6180604176 -47 44 15.708893424 9.11 9.41 8.54 8.92   O5Ifc 84 0
45 HD 91969 * 10 35 49.3174367088 -58 13 27.414688080 5.57 6.41 6.43 7.56   B0I+ 124 0
46 HD 92206 ** 10 37 22.245 -58 37 22.86 7.46         O6.5V((f))+O6.5V((f)) 83 0
47 HD 92206A * 10 37 22.2806454192 -58 37 22.852573968   8.315 8.219 9.014   O6V((f))z 19 0
48 HD 92206B * 10 37 22.9650846624 -58 37 22.959552000 8.48         O6V((f))z 28 0
49 HD 93128 SB* 10 43 54.3957741024 -59 32 57.497266716 8.82 8.97 8.77 9.40 8.71 O3.5V((fc))z 112 1
50 HD 93129A SB* 10 43 57.4587319296 -59 32 51.394897284 6.46 7.478 7.310 7.84   O2If* 180 0
51 HD 93129 ** 10 43 57.462360 -59 32 51.27000 6.26 7.840 7.884 7.839   O2If*+O3.5V((f)) 208 1
52 HD 93129B Y*? 10 43 57.6453994104 -59 32 53.765064780   10.40 8.84     O3.5V((f)) 78 0
53 Cl Collinder 228 OpC 10 44 00 -60 05.2           ~ 211 0
54 V* V661 Car SB* 10 44 00.3711575208 -59 52 27.521778900 7.60 8.31 8.04 8.75   O6.5III(f) 148 0
55 HD 93160 SB* 10 44 07.2603347496 -59 34 30.623536272 7.27 7.99 7.60 8.46   O7III((f)) 121 0
56 HD 93161A SB* 10 44 08.8380609288 -59 34 34.509718560 7.33 8.619 8.581 8.61   O7.5V+O9V 52 1
57 HD 93161 ** 10 44 08.97168 -59 34 34.8780 7.39 7.96 7.87     O8V+O9V+O6.5(f) 97 0
58 HD 93161B * 10 44 09.0755469120 -59 34 35.393294136   8.658 8.641     O6.5IV((f)) 24 1
59 HD 93190 Be* 10 44 19.6107364872 -59 16 58.802853324 8.12 9.10 8.84 9.24   O9.7:V:(n)e 68 0
60 HD 93206 * 10 44 22.9085235888 -59 59 35.970489960 5.53 6.37 6.24 7.42   O9.7Ibn 223 0
61 V* V560 Car SB* 10 44 33.7393258944 -59 44 15.434446956 6.89 7.80 7.75 7.56 7.46 O3.5V((f))+O8V 314 0
62 HD 93222 Y*O 10 44 36.2481200208 -60 05 28.890759120 7.26 8.18 8.10 8.91   O7V((f))z 212 0
63 HD 93250 ** 10 44 45.0275085072 -59 33 54.680974848 6.73 8.12 7.50 8.38   O4III(fc) 334 0
64 Cl Trumpler 16 OpC 10 45 01.9 -59 42 00           ~ 510 0
65 NGC 3372 HII 10 45 02.23 -59 41 59.8           ~ 1071 2
66 HD 93403 SB* 10 45 44.1198371784 -59 24 28.153300860 6.72 8.46 8.27 8.35   O5.5III(fc)var 203 1
67 HD 93632 * 10 47 12.6337916088 -60 05 50.814051396 7.89 8.69 9.10 9.04   O5Ifvar 97 0
68 HD 93843 Er* 10 48 37.7715351864 -60 13 25.518487656 6.37 7.29 7.33 8.23   O5III(fc) 184 0
69 HD 303492 Em* 10 51 52.7493254280 -58 58 35.267527560 9.00 9.45 8.85 9.40   O8.5Iaf 66 0
70 HD 94963 Em* 10 56 35.7867321168 -61 42 32.287821516 6.35 7.17 7.26 8.10   O7II(f) 93 0
71 HD 96670 HXB 11 07 13.9342973568 -59 52 23.180506824 6.86 7.60 7.43 8.38   O7V(f)n 109 1
72 HD 96917 V* 11 08 42.6179945208 -57 03 56.913146676 6.46 7.29 7.21 7.04 6.89 O8Ib(n)(f) 114 0
73 HD 97253 SB* 11 10 42.0464340864 -60 23 04.115936364 6.42 7.24 7.09 8.08   O5III(f) 96 0
74 HD 306097 * 11 11 19.0528578456 -60 55 12.244831212 9.27 9.58 8.91 9.40   O9V 59 0
75 HD 100099 * 11 30 24.3073215840 -63 49 02.021079000 7.36 8.17 8.08 8.90   O9III 86 1
76 V* TU Mus SB* 11 31 10.9241479224 -65 44 32.099167788 7.58 9.52 9.34 9.25   O8V(n)z+B0V(n) 185 0
77 HD 100444 s*b 11 32 53.3361313464 -63 38 48.446935656 7.88 8.63 8.42 9.22   O9II 60 0
78 V* V1051 Cen EB* 11 37 48.4343499072 -63 19 23.518561512 6.28 7.18 7.16 8.11   O5.5V((f))+O8:V 153 1
79 HD 101190 ** 11 38 09.9116823600 -63 11 48.614641440 6.58 7.37 7.33 8.48   O6IV((f)) 171 0
80 HD 101191 SB* 11 38 12.1672877688 -63 23 26.799724320 7.69 9.32 9.36 9.29   O8V 86 0
81 IC 2944 OpC 11 38 20.00 -63 22 22.0           ~ 191 0
82 HD 101205 ** 11 38 20.36114 -63 22 21.8889 5.64 6.53 6.54 7.41   O6V 164 0
83 HD 101223 * 11 38 22.7710327032 -63 12 02.800069956 8.12 9.55 9.51 9.41   O8V 84 0
84 HD 101298 * 11 39 03.2761321080 -63 25 47.052737472 7.33 8.15 8.07 8.84   O6.5IV((f)) 124 0
85 HD 101413 * 11 39 45.8384076768 -63 28 40.117629864 7.62 9.16 9.21 9.13   O8V 129 0
86 HD 101436 * 11 39 49.9553334624 -63 28 43.549419180 6.8 8.98 8.93 8.78   O6.5V((f)) 142 1
87 HD 101545A * 11 40 37.0025910815 -62 34 05.166468101   6.83 6.88     O9.2II 13 0
88 HD 104631 Pu* 12 02 56.3530654728 -62 10 31.034451684 6.08 6.808 6.771 7.91   O9.5/B0III/IV 54 0
89 HD 105056 s*b 12 05 49.8804411912 -69 34 22.996270632 6.57 9.07 8.74 8.45   ON9.7Iae 135 1
90 HD 110432 HXB 12 42 50.2663572384 -63 03 31.052981412 4.79 5.58 5.31     B0.5IVpe 334 0
91 HD 112244 s*b 12 55 57.1336250856 -56 50 08.900570292 4.49 5.33 5.32 5.21 5.21 O8.5Iab(f)p 217 0
92 * tet Mus B * 13 08 07.0496536968 -65 18 26.979989040   7.500 7.555     O9III 20 0
93 * tet Mus WR* 13 08 07.1531705448 -65 18 21.679426548 4.71 5.50 5.53 5.44 5.40 WC5+B0III 336 0
94 HD 114455 * 13 11 27.6626342136 -52 05 15.761872716   10.25 9.89     F0V 6 0
95 HD 114737 ** 13 13 45.5333080580 -63 35 11.718886112 7.43 8.19 8.00 8.92   O8.5III 67 0
96 HD 114886 ** 13 14 44.38260 -63 34 51.8077 6.15 6.98 6.89 7.76   O9-B0V 114 0
97 HD 114886A ** 13 14 44.3845174826 -63 34 51.846051647   7.12 7.04     O9III+O9.5III 5 0
98 V* V961 Cen SB* 13 16 04.8010592232 -62 35 01.490795556 7.51 9.16 9.32 8.82   O9.5III+B0Ib 111 0
99 HD 115455 SB* 13 18 35.3592390638 -62 29 28.407889555 7.40 8.17 7.97 8.81   O8III((f)) 109 1
100 HD 117856 * 13 34 43.4076221487 -63 20 07.617046801 6.92 7.57 7.44     O9.7II-III 54 0
101 HD 120678 Em* 13 52 56.4133904568 -62 43 14.260321632 7.04 9.45 8.20 9.02   O9.5Ve 76 0
102 HD 123590 * 14 10 43.9689754248 -62 28 44.450066712 6.93 9.21 8.84 8.68   O8Vz 45 0
103 HD 124314A * 14 15 01.6058626649 -61 42 24.393842714   6.99 6.86     O6IV(n)((f)) 7 0
104 HD 125206 * 14 20 09.0397470528 -61 04 54.621382980 7.47 8.18 7.92 8.89   O9.7IVn 70 1
105 HD 125241 Pu* 14 20 22.7843645064 -60 53 22.245268236 8.60 9.08 8.60 8.95   O8.5Ib(f) 89 0
106 * del Cir SB* 15 16 56.8959099600 -60 57 26.120078136 4.11 5.03 5.09 6.68   O8V 170 0
107 HD 135591 * 15 18 49.1432685384 -60 29 46.795963020 4.46 5.36 5.46 6.91   O8IV((f)) 169 0
108 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
109 HD 148546 Pu* 16 30 23.3122183296 -37 58 21.169697268 7.28 7.99 7.71 8.58   O9Iab 91 0
110 HD 148937 SB* 16 33 52.3869185520 -48 06 40.476418740 6.49 7.12 6.71 7.61   O6f?p 417 1
111 * mu. Nor s*b 16 34 05.0193637737 -44 02 43.120603946 4.05 4.99 4.94 6.36   O9.7Iab 286 0
112 HD 149404 s*b 16 36 22.5628499784 -42 51 31.902127776 5.23 5.88 5.52 6.90   O8.5Iab(f)p 265 0
113 * zet Oph Be* 16 37 09.5400587698 -10 34 01.509742704 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1908 0
114 HD 149452 * 16 37 10.5115048704 -47 07 49.828653588 9.2 10.39 9.40 9.54 8.73 O9IVn 59 0
115 HD 150135 * 16 41 19.4443334664 -48 45 47.568769200 6.19 7.00 6.88 7.33   O6.5V((f))z 130 0
116 HD 150136 SB* 16 41 20.4155898816 -48 45 46.730465028 4.98 5.78 5.65 6.93   O3.5-4III(f*)+O6IV 201 0
117 HD 151003 * 16 46 34.1955926208 -41 36 38.522639052 6.49 7.26 7.09 8.00   O8.5III 75 1
118 HD 150958A * 16 46 38.871 -47 05 24.63   7.82 7.53     ~ 2 0
119 HD 150958 ** 16 46 38.8728467256 -47 05 24.623668536 7.01 7.64 7.30 8.22   O6.5Ia(n)f 86 1
120 HD 151018 * 16 46 56.1174957336 -45 53 14.312361444 8.9 9.93 9.37 9.35   O9Ib 71 0
121 HD 151515 SB* 16 49 48.2512632192 -42 00 06.177451752 6.77 7.48 7.30 7.11 6.88 O7II(f) 129 0
122 HD 151804 s*b 16 51 33.7218052272 -41 13 49.919519496 4.45 5.29 5.22     O8Iaf 389 0
123 HD 152003 s*b 16 52 47.3744351712 -41 47 08.990966004 6.90 7.47 7.08 6.72 6.35 O9.7IabNwk 132 1
124 HD 152147 SB* 16 53 28.6179497064 -42 07 17.050155420 7.20 7.76 7.34 6.97 6.60 O9.7IbNwk 116 0
125 HD 152219 SB* 16 53 55.6078109256 -41 52 51.496403268 6.950 7.705 7.569   7.267 O9.5III(n) 114 0
126 HD 152218 Y*O 16 53 59.9905195488 -41 42 52.817214240 7.02 7.78 7.570   7.243 O9IV+B0:V: 160 0
127 HD 152234 s*b 16 54 01.8373785611 -41 48 22.987399147 4.92 5.64 5.45     B0.5Ia 201 0
128 HD 152233 SB* 16 54 03.5909222280 -41 47 29.841281484 5.93 6.72 6.59     O6II(f) 202 0
129 HD 152246 SB* 16 54 05.2976157264 -41 04 46.117795944 6.69 7.45 7.29 8.19   O9IV 132 1
130 HD 152248 Y*O 16 54 10.0618206816 -41 49 30.139291596 5.56 6.15 6.088     O7Iabf+O7Ib(f) 270 0
131 HD 152247 SB* 16 54 11.5173615984 -41 38 30.967835208 6.62 7.35 7.16 8.09   O9.2III 141 0
132 HD 152249 s*b 16 54 11.6395658856 -41 50 57.295111524 5.91 6.65 6.45     OC9Iab 254 0
133 CD-41 11037 SB* 16 54 13.2253067352 -41 50 32.518100184 7.21 8.08 7.90     O9IV 78 0
134 HD 326331 SB* 16 54 25.9691286216 -41 49 55.768191852 6.886 7.678 7.497   7.143 O8IVn((f)) 87 0
135 HD 152314 ** 16 54 32.0048577720 -41 48 18.848961036 7.256 7.974 7.749 9.01 7.446 O9IV 113 0
136 HD 152405 SB* 16 54 55.3693932960 -40 31 29.393197572 6.71 7.42 7.29 7.12 6.96 O9.7II 127 1
137 HD 152408 WR* 16 54 58.5051071856 -41 09 03.093075612 5.17 5.92 5.77 7.00   O8Iape 388 0
138 HD 152424 s*b 16 55 03.3294878112 -42 05 26.990821824 6.11 6.69 6.27 7.49   OC9.2Ia 210 0
139 HD 152386 WR* 16 55 06.4499424072 -44 59 21.364771956 8.15 8.64 8.13 8.84   O6:Iafpe 88 0
140 HD 152623 ** 16 56 15.0265311912 -40 39 35.892252936 5.95 8.70 8.64 7.68   O7V(n)((f))z 113 0
141 HD 152723 SB* 16 56 54.6694171728 -40 30 44.442698436 6.43 7.24 7.10 8.11 8.47 O6.5III(f) 163 0
142 HD 322417 * 16 58 55.3894193016 -40 14 33.377413884 10.65 10.90 10.22 10.02   O6.5IV((f)) 43 0
143 HD 153426 * 17 01 13.0078001616 -38 12 11.886304536 6.79 7.61 7.47 8.49   O8.5III 104 0
144 HD 153919 HXB 17 03 56.7725629224 -37 50 38.913331452 6.06 6.78 6.51 6.08 5.90 O6Iafcp 851 0
145 HD 154368 s*b 17 06 28.3687759224 -35 27 03.760593156 6.10 6.63 6.13 7.12   O9.5Iab 316 0
146 HD 154643 SB* 17 08 13.9817547216 -35 00 15.671611152 6.76 7.42 7.20 8.23   O9.7III 62 1
147 HD 154811 * 17 09 53.0865607752 -47 01 53.186262060 6.71 7.32 6.98 7.71   OC9.7Ib 94 0
148 HD 155806 Be* 17 15 19.2478670712 -33 32 54.299379012 4.61 5.52 5.53     O7.5V((f))z(e) 240 0
149 HD 155889 ** 17 15 50.7533188725 -33 44 13.256102872 5.68 6.54 6.55 7.60   O9.5IV 90 0
150 HD 155913 * 17 16 26.3328574536 -42 40 04.122580080 8.2 8.81 8.34 9.05   O4.5Vn((f)) 63 0
151 HD 156154 V* 17 17 27.0092259048 -35 32 12.001357572 8.19 8.64 8.04 8.94   O7.5Ib(f) 82 0
152 HD 156212 * 17 17 27.5962076424 -27 46 00.805226124 7.91 9.13 8.74 8.80   B0Iab 65 0
153 HD 156292 SB* 17 18 45.8116958160 -42 53 29.928425568 7.13 7.75 7.55 8.42   O9.7III 72 0
154 CD-38 11748 ** 17 19 05.556576 -38 48 49.68000 13.03 12.76 11.26 10.68   O4.5Ifpe 38 0
155 HD 319699 * 17 19 30.4178180256 -35 42 36.122104260 10.17 10.31 9.63 9.81 8.91 O5V((fc)) 70 0
156 HD 319703 * 17 19 46.1639892408 -36 05 52.337458248 11.9 11.73 10.92 10.46 9.30 O7V((f))z 63 0
157 HD 156738 * 17 20 52.6582094016 -36 04 20.565752484 10.06 10.27 9.35 9.65   O6.5III(f) 82 0
158 Cl Pismis 24 OpC 17 24 43.0 -34 12 23           ~ 130 0
159 HD 319718 ** 17 24 43.490 -34 11 57.03 12.28 11.94 10.44 10.05   O3.5If* 92 0
160 HD 319718B Y*O 17 24 43.490 -34 11 57.00           ~ 10 1
161 HD 319718A SB* 17 24 43.50 -34 11 56.8           ~ 11 1
162 HD 157857 Em* 17 26 17.3317676808 -10 59 34.785507480 7.16 7.95 7.78     O6.5II(f) 181 0
163 HD 158186 EB? 17 29 12.9252525072 -31 32 03.427372140 6.22 7.07 7.04 7.93   O9.5V(n) 97 0
164 HD 159176 Be* 17 34 42.4921337376 -32 34 53.995451196 4.88 5.74 5.70 7.19   O7V 261 0
165 * 63 Oph * 17 54 54.0432011904 -24 53 13.544140416 5.35 6.24 6.20 7.33   O8II((f)) 185 0
166 HD 163800 * 17 58 57.2584170624 -22 31 03.165347496 6.61 7.27 7.00 6.68 6.49 O7.5III((f)) 161 0
167 HD 163892 SB* 17 59 26.3102746896 -22 28 00.861673188 6.81 7.61 7.44 8.55   O9.5IV(n) 111 0
168 HD 163758 s*b 17 59 28.3669369416 -36 01 15.589420824 6.46 7.35 7.32 8.38   O6.5Iafp 163 0
169 HD 164438 SB* 18 01 52.2806275248 -19 06 22.079599596 7.37 8.89 8.76 8.28   O9.2IV 103 0
170 HD 164492 Y*O 18 02 23.5527520992 -23 01 50.999556180 6.49 7.49 6.80 7.52   O7.5Vz 240 0
171 HD 164740 ISM 18 03 38.3 -24 22 35     9.10     ~ 19 1
172 NAME Her 36SE Y*O 18 03 40.3201232304 -24 22 42.857540472 10.26 11.022 10.372 10.267   O8V+ 210 0
173 * 9 Sgr Y*O 18 03 52.4450051016 -24 21 38.632254012 5.08 5.97 5.97 5.72 5.70 O4V((f))z 563 0
174 HD 164816 Be* 18 03 56.8425865728 -24 18 45.118050552 6.17 7.006 6.986 8.08 6.989 O9.5V+B0V 162 0
175 HD 165052 SB* 18 05 10.5506592816 -24 23 54.847798080 6.16 6.98 6.87 7.77   O6.5V((f))z 282 1
176 HD 313846 WR* 18 05 25.7344895280 -23 00 20.334949992 10.48 10.69 9.89 9.89   WN9h+OB 143 0
177 HD 165246 SB* 18 06 04.6792554840 -24 11 43.890335448 6.90 7.70 7.60 8.77   O8V(n) 93 0
178 * 11 Sgr Or* 18 09 17.6999100192 -23 59 18.231196056 6.65 7.45 7.31 8.36   O7V(n)z+B0:V: 146 2
179 HD 166546 V* 18 11 57.0991622952 -20 25 24.149352324 6.40 7.26 7.22 8.36   O9.5IV 96 0
180 HD 166734 s*b 18 12 24.6551425392 -10 43 53.060750040 9.36 9.49 8.42 7.33 6.47 O7.5Iabf 193 0
181 * 15 Sgr s*b 18 15 12.9063291264 -20 43 41.767600368 4.64 5.42 5.37 5.27 5.19 O9.7Iab 268 0
182 * 16 Sgr SB* 18 15 12.9690278832 -20 23 16.691046360 5.25 6.05 6.02 5.94 5.86 O9.5III 198 0
183 HD 167633 * 18 16 49.6543599336 -16 31 04.308165588 7.69 9.16 9.07 8.91   O6.5V((f)) 85 1
184 HD 167659 * 18 16 58.5644126712 -18 58 05.194091496 6.87 7.54 7.40 8.41   O7II-III(f) 112 0
185 HD 167771 SB* 18 17 28.5570708120 -18 27 48.424975128 5.81 6.65 6.54 7.43   O7III((f))+O8III 189 0
186 BD-11 4586 s*b 18 18 03.3435555624 -11 17 38.830589016 10.26 10.33 9.52     O8Ib(f) 57 0
187 HD 167971 s*b 18 18 05.8947362832 -12 14 33.313601112 7.89 8.27 7.50 6.68 6.279 O8Iaf(n)+O4/5 324 0
188 HD 168075 Y*O 18 18 36.0418343184 -13 47 36.449731536 8.62 9.22 8.77 9.45   O7V(n)((f))z 149 0
189 HD 168076 Y*O 18 18 36.4205083536 -13 48 02.420915796 8.12 8.72 8.25 7.62 7.21 O4III(f) 209 0
190 BD-13 4927 Y*O 18 18 40.0938541704 -13 45 18.603231696 10.12 10.14 9.48 9.71   O7II(f) 82 0
191 HD 168112 SB* 18 18 40.8671461608 -12 06 23.367244644 8.81 9.21 8.52 9.24   O5III(f) 156 0
192 HD 168137 Y*O 18 18 56.1894798360 -13 48 31.092549588 8.72 9.36 8.94 9.55   O8Vz 131 0
193 V* RY Sct Be* 18 25 31.4771300232 -12 41 24.192361500 10.25 10.38 9.12 9.46   O9.7Ibep 311 2
194 HD 169582 s*b 18 25 43.1466928224 -09 45 11.033442216 8.74 9.24 8.70     O6Iaf 95 0
195 HD 171589 Em* 18 36 12.6382414200 -14 06 55.832938524 7.91 8.60 8.28 7.95 7.74 O7.5II(f) 86 0
196 HD 173010 s*b 18 43 29.7070060440 -09 19 12.606116772 9.64 9.866 9.207 9.54   O9.7Ia+ 49 1
197 HD 175754 Em* 18 57 35.7085336776 -19 09 11.264191704 5.99 6.96 7.03     O8II(n)((f))p 152 0
198 HD 175876 * 18 58 10.7660947512 -20 25 25.541961636 5.79 6.82 6.94 6.93   O6.5III(n)(f) 154 0

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