2024A&A...688A.105H

Query : 2024A&A...688A.105H

2024A&A...688A.105H - Astronomy and Astrophysics, volume 688A105 (2024/8-1)

X-Shooting ULLYSES: Massive stars at low metallicity III. Terminal wind speeds of ULLYSES massive stars.

HAWCROFT C., SANA H., MAHY L., SUNDQVIST J.O., DE KOTER A., CROWTHER P.A., BESTENLEHNER J.M., BRANDS S.A., DAVID-URAZ A., DECIN L., ERBA C., GARCIA M., HAMANN W.-R., HERRERO A., IGNACE R., KEE N.D., KUBATOVA B., LEFEVER R., MOFFAT A., NAJARRO F., OSKINOVA L., PAULI D., PRINJA R., PULS J., SANDER A.A.C., SHENAR T., ST-LOUIS N., UD-DOULA A. and VINK J.S.

Abstract (from CDS):

Context. The winds of massive stars have a significant impact on stellar evolution and on the surrounding medium. The maximum speed reached by these outflows, the terminal wind speed v∞, is a global wind parameter and an essential input for models of stellar atmospheres and feedback. With the arrival of the ULLYSES programme, a legacy UV spectroscopic survey with the Hubble Space Telescope, we have the opportunity to quantify the wind speeds of massive stars at sub-solar metallicity (in the Large and Small Magellanic Clouds, 0.5 Z⊙ and 0.2 Z⊙, respectively) at an unprecedented scale.
Aims. We empirically quantify the wind speeds of a large sample of OB stars, including supergiants, giants, and dwarfs at sub-solar metallicity. Using these measurements, we investigate trends of v∞ with a number of fundamental stellar parameters, namely effective temperature (Teff), metallicity (Z), and surface escape velocity vesc.
Methods. We empirically determined v∞ for a sample of 149 OB stars in the Magellanic Clouds either by directly measuring the maximum velocity shift of the absorption component of the C IVλλ1548-1550 line profile, or by fitting synthetic spectra produced using the Sobolev with exact integration method. Stellar parameters were either collected from the literature, obtained using spectral-type calibrations, or predicted from evolutionary models.
Results. We find strong trends of v∞ with Teff and vesc when the wind is strong enough to cause a saturated P Cygni profile in C IVλλ1548-1550. We find evidence for a metallicity dependence on the terminal wind speed v∞ ∝ Z0.22±0.03 when we compared our results to previous Galactic studies.
Conclusions. Our results suggest that Teff rather than vesc should be used as a straightforward empirical prediction of v∞ and that the observed Z dependence is steeper than suggested by earlier works.

Abstract Copyright: © The Authors 2024

Journal keyword(s): stars: atmospheres - stars: early-type - stars: massive - stars: winds, outflows - Magellanic Clouds - techniques: spectroscopic

Simbad objects: 171

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Number of rows : 171
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 2dFS 163 s*b 00 36 58.2381836400 -73 23 33.167140224 13.84 14.95 15.11   15.14 O7.5Ib(f) 12 0
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 AzV 6 Ev* 00 45 18.198504 -73 15 23.54220   13.436 13.405 13.337   O9III 36 0
4 SK 10 s*b 00 46 42.1591125672 -73 24 55.494317340 11.903 12.984 13.176   13.35 O6.5III(f) 56 0
5 LHA 115-S 6 s*b 00 46 55.0295765376 -73 08 34.136808252 12.14 13.02 12.91   12.52 BI[e] 100 1
6 SK 13 s*b 00 47 12.2164410744 -73 06 33.111710784   12.52 12.48     B1.5Ia 83 0
7 BBB SMC 259 s*b 00 47 38.7409708152 -73 07 48.851948496   12.17 12.24     B3Ia 43 0
8 BBB SMC 266 s*b 00 47 50.0484011088 -73 08 21.054056928   12.35 12.55 12.36   O6I(f)+O7.5 78 0
9 AzV 43 * 00 48 47.8983993528 -72 46 24.890763828   13.76 13.88     O9II 28 0
10 AzV 47 * 00 48 51.4911440520 -73 25 58.537753356 12.263 13.314 13.496   14.00 O8III((f)) 45 0
11 OGLE J004942.75-731717.7 Em* 00 49 42.7430092944 -73 17 18.162584196   14.338 14.453   14.404 O6V((f))ne 12 0
12 BBB SMC 1 * 00 50 17.2067283312 -72 53 30.259838832 12.093 13.144 13.326 13.39 13.47 OC7III 52 0
13 SK 35 s*b 00 50 18.1229621664 -72 38 10.034313252 11.04 10.96 12.40   12.12 O9.5Iab 48 0
14 LIN 156 s*b 00 50 32.4050818488 -72 52 36.441355908 11.553 12.604 12.756   12.89 O5.5I(f) 58 0
15 HD 5045 s*b 00 50 38.3868754296 -73 28 18.256667052   11.02 11.04     B1Ia+ 94 0
16 AzV 80 * 00 50 43.8139294080 -72 47 41.547243120 12.22 13.24 13.376   13.59 O6IIInn(f)p 42 0
17 AzV 83 s*b 00 50 52.0015192368 -72 42 14.940550980 12.233 13.244 13.366   13.67 O7Iaf 58 0
18 AzV 95 * 00 51 21.6002057448 -72 44 14.875230300 12.67 13.64 13.83   13.95 O7.5III((f)) 53 0
19 AzV 104 s*b 00 51 38.4279675528 -72 48 06.081643404 12.053 13.064 13.226   13.57 B0.5Ia 43 0
20 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
21 2dFS 5066 * 00 53 12.8532467064 -72 36 59.964415632 12.94 14.00 14.14   14.44 O6.5V((f)) 6 0
22 AzV 170 s*b 00 55 42.4299731736 -73 17 30.523500780 12.86 13.82 14.11   14.25 O9.7I 41 0
23 Cl* NGC 330 ARP 45 s*b 00 56 10.0781111880 -72 27 32.553003924 13.2 14.15 14.29   14.444 B2IIe 26 0
24 Cl* NGC 330 ARP 8 s*b 00 56 20.8056348480 -72 28 34.134249540 12.043 12.364 12.656   13.62 B2.5Ib 32 0
25 Cl* NGC 330 ARP 14 s*b 00 56 24.8626714248 -72 27 41.928918516 12.07 12.85 12.93   12.972 B3Ib 26 0
26 Cl* NGC 330 ARP 13 * 00 56 25.8972816504 -72 27 53.471397096   14.52 14.71 14.967 14.883 B0.5Ve 20 0
27 SK 64 * 00 56 38.0776029912 -72 36 35.278875108 12.61 13.50 13.586   13.74 B1IIw 22 0
28 AzV 177 * 00 56 44.1036082560 -72 03 31.678578504 13.22 14.39 14.62   14.90 O4Vz 32 0
29 AzV 189 * 00 57 32.5145162232 -72 28 51.133365372 13.29 14.34 14.47   14.67 B0(IV) 15 0
30 Cl* NGC 346 MPG 11 Y*O 00 58 13.9512028416 -72 09 19.107879408 14.02 15.12 15.27   15.46 B0.2IV 20 0
31 Cl* NGC 346 MPG 12 * 00 58 14.0865065520 -72 10 44.292892764   19.15 17.98   16.72 B0III 43 0
32 Cl* NGC 346 ELS 28 * 00 58 31.7543622456 -72 10 57.965696544 13.58 14.73 14.94   15.23 OC6Vz 33 0
33 AzV 207 * 00 58 33.1896798552 -71 55 46.721984016 12.99 14.13 14.35   14.58 O7V((f))z 48 0
34 SK 73 s*b 00 58 35.7838206672 -72 16 25.018020660 11.73 12.63 12.66   12.69 B1Iab-Ib 38 0
35 Cl* NGC 346 ELS 50 * 00 58 55.2212724984 -72 09 06.692331348 14.07 15.24 15.49   15.80 O8Vn 17 0
36 SK 76 s*b 00 58 55.6254525024 -72 32 08.467356804 11.64 12.65 12.75   12.84 BN0Ia 52 0
37 Cl* NGC 346 ELS 7 * 00 58 57.3961905528 -72 10 33.660822720 12.68 13.82 14.13   14.28 O4V((f+)) 61 0
38 AzV 216 EB* 00 58 59.1397025928 -72 44 34.125224352 13.11 14.15 14.32 14.49 14.56 B0IIw 43 0
39 Cl* NGC 346 W 4 EB* 00 59 00.0525662904 -72 10 37.962442344 11.82 12.93 13.13   13.77 O5-6V((f)) 43 0
40 Cl* NGC 346 W 3 * 00 59 00.7591806336 -72 10 28.171806492 11.46 12.61 12.80   13.63 O2III(f) 69 0
41 Cl* NGC 346 NMC 28 * 00 59 01.8187292184 -72 10 31.216864152   13.95 14.18     O5.5V((f+)) 38 0
42 Cl* NGC 346 MPG 396 Y*O 00 59 02.92 -72 10 34.8   14.17 14.39     O7V 17 0
43 NGC 346 Cl* 00 59 04.4000 -72 10 39.000           ~ 547 0
44 Cl* NGC 346 NMC 17 * 00 59 06.7498587648 -72 10 41.262204828 13.05 14.19 14.33   14.60 O8V 26 0
45 Cl* NGC 346 ELS 51 * 00 59 08.6965433496 -72 10 14.136149136 14.03 15.17 15.40   15.62 O7Vz 23 0
46 AzV 220 s*b 00 59 09.9690896976 -72 05 48.278525460 13.13 14.24 14.51   14.73 O7If 43 0
47 Cl* NGC 346 SSN 25 * 00 59 12.3217064059 -72 11 07.909334452   14.49 14.68     O7V 8 0
48 AzV 224 s*b 00 59 16.0401743304 -72 04 44.512604868 13.03 14.04 14.21   14.36 B1Iab 16 1
49 Cl* NGC 346 ELS 22 * 00 59 18.6176208672 -72 11 09.887619084   14.65 14.91     O9V 23 0
50 SK 80 s*b 00 59 31.9751731656 -72 10 46.106730444   12.12 12.31     O7Iaf 117 0
51 SK 81 s*b 00 59 43.5064718376 -72 04 18.839976816 12.023 12.894 12.996   12.44 B2.5Ib 22 0
52 RMC 17 s*b 00 59 45.7300850520 -72 44 56.416111080   12.02 12.2     B0Ia 70 0
53 2dFS 1418 EB* 00 59 46.6473470640 -72 05 32.504410896 13.98 14.85 15.06   15.62 B1V 14 0
54 SK 84 * 01 00 06.7253852112 -72 47 19.124459916 12.58 13.71 13.91   14.16 O6.5V 51 0
55 RMC 18 s*b 01 00 06.8830919184 -72 13 57.371461032   11.7 11.5     B1Ia 76 0
56 SK 95 s*b 01 01 09.3913651632 -72 27 28.543237812 11.47 12.48 12.61   12.67 B0.7Ia 36 0
57 AzV 267 * 01 01 15.6926628168 -72 06 35.367953616   14.58 14.84     O7.5Vn 25 0
58 SK 101 s*b 01 01 57.2236302768 -72 12 42.217658100 11.853 12.774 12.536   13.65 O9.2Ib(n) 23 0
59 AzV 304 * 01 02 21.4823289456 -72 39 14.587308576   14.66 14.77     B0.5V 57 0
60 AzV 307 * 01 02 32.1812082792 -72 39 42.569272548 13.34 13.88 14.02   14.26 B0.5II 21 0
61 SK 107 s*b 01 02 51.9499143600 -71 48 24.790164336 11.643 12.744 12.936   13.02 B0Iw 34 0
62 AzV 321 s*b 01 02 57.0821742960 -72 08 09.112126884 12.49 13.66 13.82   14.10 O9.5Ibn 34 0
63 Dachs SMC 2-8 s*b 01 03 03.2237598384 -72 11 15.851870556 12.11 12.84 12.90   12.98 B8Iab 13 0
64 AzV 326 * 01 03 09.308 -72 25 56.69   13.84 13.92 14.07 14.40 O9.7V 16 0
65 RMC 28 s*b 01 03 10.5480205584 -72 02 14.335031256 11.833 12.924 13.086   13.60 O9.7Ib 52 0
66 MOA J010321.3-720538 SB* 01 03 21.3011685264 -72 05 38.152558428 12.06 13.15 13.36   13.95 O5V(n)+O6.5(n) 31 0
67 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
68 RMC 36 s*b 01 04 49.3494336384 -72 06 21.746153556 10.57 11.34 11.36     B3Ia 58 0
69 SK 116 s*b 01 04 55.7398901040 -72 46 48.146591280 11.413 12.494 12.646     O9.2Iab 43 0
70 AzV 377 * 01 05 07.3821781944 -72 48 18.712907748 13.18 14.34 14.59   14.83 O5V((f)) 22 0
71 AzV 388 * 01 05 39.5306276568 -72 29 26.938329540 12.79 13.86 14.12   14.37 O5V 51 0
72 LHA 115-S 45 s*b 01 05 56.3185112880 -72 19 44.760359424   11.44 11.47     B2Ia 47 0
73 SK 132 s*b 01 07 40.3905611664 -72 51 00.061708428 12.08 13.13 13.31 13.30 13.45 O9.5II(n) 49 0
74 AzV 440 * 01 08 56.0209984488 -71 52 46.695754200 13.42 14.30 14.58   14.76 O7.5III((f)) 30 0
75 AzV 446 * 01 09 25.4274489696 -73 09 29.906782668 13.37 14.38 14.61   14.91 O6.5Vz 28 0
76 SK 142 * 01 10 45.0341568408 -72 43 09.087901644 12.44 13.49 13.60   13.57 O8.5III 18 0
77 SK 143 s*b 01 10 55.7567270880 -72 42 56.223094032 12.15 12.98 12.89 12.78 11.64 O9.7Ib 91 0
78 SK 150 s*b 01 13 01.8742585512 -72 45 48.441989592 11.593 12.564 12.676   11.42 B1.5Ia 41 0
79 Dachs SMC 3-10 EB* 01 13 42.4497160176 -73 17 29.516706528 12.49 13.54 13.48 13.72 13.54 O2-3V 45 0
80 SK 155 s*b 01 14 50.2614192144 -73 20 17.851206156 11.35 12.33 12.48     O9Iab(ff) 63 0
81 LIN 508 Em* 01 14 55.0195828176 -72 21 38.101370184 13.26 14.41 14.3   14.25 O4-7Ve 22 0
82 SK 159 s*b 01 15 58.8782034384 -73 21 24.351532740 10.80 11.77 11.90     B0.2Ia 84 0
83 2dFS 3694 * 01 24 34.4453455008 -73 09 08.884877616   13.67       B1IV: 6 0
84 SK 173 s?b 01 25 38.2224140928 -73 07 39.333334008   13.54 13.72     B1-2(Ib)e? 13 0
85 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
86 WDG 1 s*b 01 41 42.0683863272 -73 50 38.183979624   11.86 11.84     B1.5Ia 74 0
87 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
88 HD 270754 s*b 04 47 04.4509965192 -67 06 53.121123648 10.351 11.219 11.26   10.992 B1.5Ia 92 0
89 HD 268605 s*b 04 50 18.9258130824 -67 39 38.036838240 10.244 11.2 11.377   11.322 O9.5/B0Ia 99 0
90 HD 268729 s*b 04 53 43.2832436568 -68 42 53.288900892 10.195 11.05 10.93   10.970 B5Ia+ 48 0
91 HD 268723 * 04 53 47.1194430840 -68 35 16.397777112   12.67 12.10     K2 10 0
92 HD 268685 s*b 04 54 31.8862673064 -67 15 24.584925456 10.616 11.376 11.541   11.599 B1Ia 55 0
93 SK -70 16 s*b 04 54 57.3613579704 -70 02 28.153512888   13.05 13.14     B2II 13 0
94 SK -66 16 * 04 55 29.4146271192 -66 23 12.244739964 11.605 12.361 12.461   11.908 O9.7Ib 15 0
95 SK -66 19 * 04 55 53.951 -66 24 59.35   14.98 14.87     O7V 27 0
96 RMC 63 * 04 56 00.8925890544 -66 26 16.589782356 12.309 13.191 13.327   13.454 O6.5II(f)var 11 0
97 [L72] LH 9-89 * 04 56 11.0176066200 -66 28 24.363611436 12.580 13.531 13.645   13.837 B0IIIn 16 0
98 SK -66 25 * 04 56 17.2873778904 -66 31 03.974335824 11.719 12.591 12.638   12.852 O8Ib(f) 6 0
99 SK -66 27 s*b 04 56 23.4938412192 -66 29 52.089824112 11.099 11.832 11.779     B3Ia 23 0
100 [ELS2006] N11 051 Pu* 04 56 29.6988034392 -66 21 38.860019604 12.909 13.812 13.990   14.173 O5Vn((f)) 14 0
101 PGMW 3053 * 04 56 41.0475516240 -66 24 40.537858536   13.04 13.13     O6II(f+) 19 0
102 PGMW 3058 Pu* 04 56 42.1339871825 -66 24 54.713617412 12.901 14.092 14.089   13.991 O3V((f*)) 25 0
103 PGMW 3100 * 04 56 45.2033296872 -66 25 10.776628056 13.007 13.736 13.648   13.547 O5III(f+) 20 0
104 BI 37 s*b 04 56 45.2839666824 -66 29 37.008656520 11.768 12.585 12.766   12.031 O8.5Iaf 12 0
105 PGMW 3120 * 04 56 46.7984540280 -66 24 46.862515368 11.700 12.496 12.466   12.464 O5.5V((f*)) 37 0
106 BI 39 s*b 04 56 50.5859606808 -66 24 35.122236480 11.691 12.356 12.438   10.895 B1Ia 18 0
107 [ELS2006] N11 026 * 04 56 52.5287243472 -66 19 56.230847832 12.646 13.405 13.580     O2.5III(f*) 19 0
108 PGMW 3224 EB* 04 57 00.8732045736 -66 23 57.319318284 13.369 14.167 14.043   13.820 O6III 14 0
109 BI 42 Ro* 04 57 00.8846599752 -66 24 25.206714576 11.998 12.768 12.896 13.210 12.663 O8V 33 0
110 PGMW 1519 EB* 04 57 01.0669799736 -66 28 30.334803924 12.927 13.754 14.015   14.149 O7III+B0: 7 0
111 HD 268732 s*b 04 57 04.4395141656 -66 34 38.571040380 10.652 11.494 11.587     BC1Iab 60 0
112 SK -69 50 s*b 04 57 15.0943771440 -69 20 19.952673936 12.163 13.204 13.366 12.86 13.385 O7(n)(f)p 26 0
113 [ELS2006] N11 028 * 04 57 16.2396 -66 23 20.784   13.73 13.63     O6-8V 4 0
114 Brey 10a WR* 04 57 27.4544617632 -67 39 02.864000880 12.213 13.314 13.496   13.564 O2If*/WN5 63 1
115 [ELS2006] N11 035 * 04 57 28.6954905696 -66 31 02.690283540 13.025 13.732 13.755   13.516 O9II(f) 8 0
116 SK -68 16 * 04 57 37.7906705568 -68 24 35.919929952 11.683 12.714 12.906   13.052 O7III 20 0
117 HD 270952 WR* 05 01 23.0763876936 -65 52 33.206008764 10.944 11.871 12.07   12.187 O6Iaf 61 0
118 SK -68 26 s*b 05 01 32.2453117296 -68 10 42.937181508 10.822 11.728 11.85     BC2Ia 41 0
119 SK -70 79 * 05 06 37.2738884832 -70 29 24.192350448 11.703 12.704 12.766   12.723 B0III 27 0
120 HD 269050 s*b 05 07 20.4218668824 -68 32 08.569322196 10.593 11.581 11.54 11.46 11.55 B0Ia(e?) 89 0
121 SV* HV 5622 EB* 05 09 29.2077023784 -68 55 02.610801516   14.81 14.798 15.08 14.929 B0V 19 0
122 HD 269357 s*b 05 18 59.4790204920 -69 12 54.801550908   11.89 12.10     O6Ib(f) 63 0
123 SK -65 47 s*b 05 20 54.7193542416 -65 27 17.880205176 11.451 12.270 12.466   12.741 O4If 25 0
124 SK -71 19 * 05 22 15.7474585104 -71 21 39.298224096 13.153 14.031 14.227   14.436 O6IΠ 18 0
125 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
126 SK -67 101 * 05 25 56.2422042240 -67 30 28.813234608   12.46 12.63     O8II((f)) 41 1
127 HD 269525 * 05 26 15.2190917352 -67 29 59.904231972   11.564 11.758 12.126   O8II 33 0
128 SK -67 107 s*b 05 26 20.6747956344 -67 29 55.652908164   12.38 12.50     O8.5II 25 0
129 SK -67 108 * 05 26 26.4631628832 -67 37 20.458414380   12.320 12.525     O4-5III 26 0
130 SK -67 111 s*b 05 26 48.0782169672 -67 29 29.782796892   12.33 12.42     O6Iaf(n)pv 53 0
131 BI 173 * 05 27 09.9440507208 -69 07 56.452079568 11.85 12.86 13.00     O7.5III((f))p 36 0
132 SK -67 118 * 05 27 33.3079203168 -67 17 30.344613648   12.79 12.99     O7V 15 0
133 SK -69 140 s*b 05 27 39.3876530592 -69 12 41.859841896   12.598 12.696     B1Ib 10 0
134 BI 184 * 05 30 30.6622260408 -71 02 31.604520048 13.033 13.830 13.926   13.954 B0.5V 28 0
135 SK -71 41 s*b 05 30 40.1497148784 -71 05 37.084358652 11.906 12.643 12.775   12.769 O9.7Iab 23 0
136 RMC 109 s*b 05 30 40.4069468208 -67 16 08.942376000   12.19 12.59 11.98 12.06 B5Ia 24 0
137 [RHH2018] 170 * 05 31 02.9915577792 -70 49 56.466220440           B1IV 7 0
138 SK -71 46 s*b 05 31 49.5879641544 -71 03 38.064684456 12.467 13.147 13.241   13.066 O4If 24 0
139 SK -67 167 s*b 05 31 51.9123196824 -67 39 41.372080308 11.243 12.364 12.586   11.819 O4If+n 45 0
140 HD 269702 s*b 05 31 52.1192227056 -67 34 20.768696508   11.69 11.99     O8I(f)p 35 0
141 X LMC X-4 HXB 05 32 49.5556042296 -66 22 13.202721768   13.9 14.0 14.290   O8III 714 0
142 SK -67 191 * 05 33 34.0158776232 -67 30 19.741489992 12.153 13.214 13.436   14.838 O8V 35 0
143 W61 28-5 * 05 34 28.4650523832 -69 43 56.833403844 12.795 13.630 13.774   14.063 O4V(f+) 17 0
144 W61 28-23 * 05 34 50.1539297904 -69 46 32.544537024 12.698 13.596 13.702   13.752 O3.5V(f+) 18 0
145 HD 269810 Em* 05 35 13.8977747136 -67 33 27.542449260   12.08 12.22 12.53   O3III(f*) 113 0
146 BI 237 * 05 36 14.6333257920 -67 39 19.168082640 12.865 13.790 13.830   13.948 O2V(f*) 47 0
147 W61 27-56 s*b 05 36 26.7746241720 -68 57 32.036561136 11.973 12.864 12.836   11.827 B1I 32 0
148 SK -66 172 * 05 37 05.3893162560 -66 21 34.989059484   13.01 13.1     O2III(f*)+OB 45 0
149 MCPS 084.37367-69.24772 s*b 05 37 29.6204974056 -69 14 51.935383068 12.493 13.464 13.486   13.651 O5.5Iaf 8 0
150 2MASS J05373309-6904343 SB* 05 37 33.0871994376 -69 04 34.689561744   15.64 15.54     O9.5III(n) 23 0
151 BI 253 * 05 37 34.4595697440 -69 01 10.178659452 12.765 13.650 13.669   13.742 O2V(f*) 60 0
152 2MASS J05373664-6907318 s*b 05 37 36.6560452584 -69 07 31.823879304   13.44 13.58     O9.7Ib-II 16 0
153 HD 269896 s*b 05 37 49.1356176384 -68 55 01.639049016 11.338 9.493 11.449 11.49   ON9.7Ia+ 102 0
154 Brey 74a WR* 05 37 51.3386549880 -69 09 46.690186716 12.483 13.474 13.446 13.62 13.278 O3If* 43 0
155 2MASS J05381396-6907477 SB* 05 38 13.9613816664 -69 07 47.728274376   13.44 13.49     O3.5III(f) 23 0
156 Cl* NGC 2070 MEL 47 SB* 05 38 37.718 -69 05 20.97 11.913 12.764 12.046   12.344 O6-6.5II(f) 24 0
157 Cl* NGC 2070 MH 57 s*b 05 38 40.2160044288 -69 05 59.915264352   12.97 13.0   12.91 O3If*/WN6-A 46 1
158 Brey 78 WR* 05 38 40.2960 -69 05 59.640           O2.5If*/WN6 42 0
159 Brey 77 WR* 05 38 42.1044150840 -69 05 55.335965424     12.86   12.79 O2If* 90 0
160 SK -68 140 s*b 05 38 57.1713887928 -68 56 53.151615708   12.81 12.71 12.89   B0.7Ib-IabNwk 53 0
161 W61 4-4 s*b 05 39 50.6881270464 -69 24 27.480143052 12.694 13.614 13.639   13.651 O5If 13 0
162 MCPS 085.03420-69.65476 * 05 40 08.2148352720 -69 39 17.255518956 12.867 13.562 13.629   13.637 O4III(f) 8 0
163 SK -71 50 * 05 40 43.1738709600 -71 29 00.676536072 12.479 13.142 13.445   13.537 O6.5III 28 0
164 SK -69 279 s*b 05 41 44.6553703752 -69 35 14.905767516 12.079 12.787 12.842 13.03 12.619 ON9.5Ia+ 70 0
165 SK -68 155 s*b 05 42 54.9424084824 -68 56 54.480574752   12.75 12.72     O9Ia 37 0
166 [L72] LH 114-7 * 05 43 13.0005 -67 51 16.007   13.41 13.66     O2III(f*)+OV 21 0
167 BI 272 * 05 44 23.1088099248 -67 14 29.211340416 12.163 13.127 13.201   13.524 O7II 29 0
168 HD 270145 s*b 05 48 49.6513961040 -70 03 57.837376476 10.903 12.110 12.166     O6.5Iaf 59 1
169 MCG+09-19-035 H2G 11 18 20.7414994848 +53 45 09.968904540   17.0       ~ 33 0
170 Z 243-24 Sy2 11 53 41.7732361680 +46 12 42.174375120   16.24 15.45     ~ 224 0
171 Mrk 47 G 12 15 59.2232132549 +40 34 21.508454967   16.0       ~ 17 0

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