2008ApJS..177..238G

Query : 2008ApJS..177..238G

2008ApJS..177..238G - Astrophys. J., Suppl. Ser., 177, 238-254 (2008/July-0)

An X-ray survey of Wolf-Rayet stars in the Magellanic Clouds. II. The ROSAT PSPC and HRI data sets.

GUERRERO M.A. and CHU Y.-H.

Abstract (from CDS):

Wolf-Rayet (WR) stars in the Magellanic Clouds (MCs) are ideal for studying the production of X-ray emission by their strong fast stellar winds. We have started a systematic survey for X-ray emission from WR stars in the MCs using archival Chandra, ROSAT, and XMM-Newton observations. In Paper I, we reported the detection of X-ray emission from 29 WR stars using Chandra ACIS observations of 70 WR stars in the MCs. In this paper, we report the search and analysis of archival ROSAT PSPC and HRI observations of WR stars. While useful ROSAT observations are available for 117 WR stars in the MCs, X-ray emission is detected from only seven of them. The detection rate of X-ray emission from MCs WR stars in the ROSAT survey is much smaller than in the Chandra ACIS survey, illustrating the necessity of high angular resolution and sensitivity. LMC-WR 101-102 and 116 were detected by both ROSAT and Chandra, but no large long-term variations are evident.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Magellanic Clouds - Stars: Wolf-Rayet - Surveys - X-Rays: Stars

Simbad objects: 144

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Number of rows : 144
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 SMC AB 1 WR* 00 43 42.3082596960 -73 28 55.259220360 14.33 15.20 15.24   15.21 WN3+O4: 31 0
2 SMC AB 10 WR* 00 45 28.9085871312 -73 04 45.621712056 14.69 15.81 15.55   15.96 WN3ha 22 0
3 SMC AB 2 WR* 00 48 30.8447640360 -73 15 45.829848132 13.23 14.23 14.43   14.52 WN4.5/O3 49 0
4 LIN 143 WR* 00 49 59.3505485400 -73 22 14.121279948 13.48 14.43 14.56   14.57 WN3/4+O4 37 0
5 LIN 160 WR* 00 50 43.4248908624 -73 27 05.815089828 12.363 13.304 13.426   13.55 WN6 49 0
6 SMC AB 11 WR* 00 52 07.39 -72 35 38.6   15.593 15.816   16.011 WN4h:a 23 0
7 SMC AB 9 WR* 00 54 32.1559137576 -72 44 35.666609568 14.31 15.26 15.43   15.69 WN3ha 28 0
8 HD 5980 WR* 00 59 26.5838833944 -72 09 53.927337312   11.13 11.31   11.029 WN4+O7I: 393 1
9 SMC AB 12 WR* 01 02 52.4011237800 -72 06 52.532688348   16 16.08     WN3ha 21 0
10 RMC 31 WR* 01 03 25.2272050176 -72 06 43.857668340   12.11 12.30     WN3:h+O5.5V+O5.5If+O7.5V 114 0
11 SMC AB 7 WR* 01 03 35.9241336168 -72 03 22.118601312 11.933 12.954 13.016   13.32 WN4+O6I(f) 48 0
12 LIN 547 WR* 01 31 04.1367366432 -73 25 03.784411524   12.75 12.90     WO4+O4V 95 0
13 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7060 0
14 Brey 3 WR* 04 52 57.3970420344 -66 41 13.495924752 13.793 14.531 14.640   14.527 WN4b 40 0
15 Brey 4 WR* 04 54 28.0891890576 -69 12 50.797294596 15.957 16.715 16.742   16.363 WN2b 30 0
16 SK -67 18 WR* 04 55 14.9246934528 -67 11 23.535862980 10.990 11.803 11.95   12.072 O6-7n-nn+WN5-6-A 58 0
17 HD 32109 WR* 04 55 31.3415815464 -67 30 02.683346940 12.893 13.46 13.81 13.95 13.512 WN4b 74 0
18 HD 32125 WR* 04 56 11.0961328800 -66 17 33.052465428 13.704 14.295 14.33   14.618 WC 56 0
19 HD 32228 WR* 04 56 34.666 -66 28 26.34   10.685 10.830     WC4+O9.5II: 93 0
20 NGC 1761 As* 04 56 39 -66 29.0     9.94     ~ 99 0
21 HD 32402 WR* 04 57 24.0820685472 -68 23 57.120838692   12.53 12.69 13.24   WC 78 0
22 Brey 10a WR* 04 57 27.4544617632 -67 39 02.864000880 12.213 13.314 13.496   13.564 O2If*/WN5 57 1
23 LHA 120-S 9 WR* 04 57 41.0338477008 -66 32 42.553604940 12.191 12.91 12.82 12.91 11.781 WN10 53 0
24 HD 268856 WR* 04 58 56.3625896976 -68 48 04.732033356   12.130 10.827 10.34 9.33 WN4o(+OB) 45 0
25 HD 268847 WR* 04 59 51.5602106760 -67 56 55.438699560 13.658 14.21 14.58 14.75 14.426 WN4b 54 0
26 HD 33133 WR* 05 03 08.9126630616 -66 40 57.492259824   12.46 12.63 12.85   WN7h 93 0
27 HD 34169 WR* 05 09 40.4196726384 -68 53 24.752391396 12.773 13.47 13.65 14.02 13.697 WN4b+O5: 66 1
28 Brey 16a WR* 05 09 53.7665948424 -68 52 52.472362872   14.12 13.93     WC5+O 21 0
29 HD 34632 WR* 05 13 43.7713381440 -67 22 29.382994920 12.144 13.002 13.07 13.41 13.271 WN4+OB 30 0
30 HD 269227 WR* 05 13 54.2756276088 -69 31 46.665067440 11.429 11.98 11.918 12.13 10.557 WN9/10+M2Ia 160 0
31 BAT99 23 WR* 05 13 56.0309726688 -67 24 36.498713292   17.29 16.98     WN3(h) 14 0
32 HD 34783 WR* 05 14 12.7026762984 -69 19 26.110131672 13.668 14.115 14.49 14.55 14.150 WN4b 45 0
33 Brey 19a WR* 05 14 57.2842242120 -71 36 18.312615000   14.87 15.10 15.49   WN4ha 21 0
34 Brey 20 WR* 05 16 38.8431915960 -69 16 40.826569980 13.791 14.345 14.48 15.05 14.336 WN4b 39 0
35 HD 269333 WR* 05 18 19.2104631720 -69 11 40.657335684 10.375 11.23 11.29 11.47 11.412 WN+BI 59 0
36 HD 35517 WR* 05 19 16.3515868608 -69 39 20.012864004 11.193 11.754 11.58 12.36 11.953 WC4+O5/6III/V+O 88 0
37 Brey 23 WR* 05 20 44.7306962712 -65 28 20.441024040 13.774 14.43 14.65 14.87 14.534 WN4b+OB 39 0
38 LHA 120-S 28 WR* 05 21 57.6946827024 -65 49 00.222663684 12.395 13.12 13.32 13.62 13.295 WN6h 46 0
39 Brey 25 WR* 05 22 04.4095895424 -67 59 06.777660876 14.589 15.326 15.207   14.993 WN4b 38 0
40 HD 36063 WR* 05 22 22.5295596384 -71 35 58.154210736 11.583 12.43 12.66 12.85 12.602 WN7 71 0
41 HD 269445 WR* 05 22 59.7855849168 -68 01 46.635948408 10.79 11.77 11.520 11.41 10.979 Ofpe/WN9 124 0
42 HD 36156 WR* 05 23 10.0576745256 -71 20 50.843953284 11.732 12.54 12.74 12.97 12.960 WC 44 0
43 Brey 27 WR* 05 23 18.0136346784 -65 56 56.944850280 13.870 14.624 14.876   14.929 WN3(h) 39 0
44 HD 269485 WR* 05 24 24.1935093984 -68 31 35.592471948 13.593 14.40 14.46 14.39 14.574 WN4b/WCE+OB 58 0
45 Brey 30 WR* 05 24 54.3452003016 -66 14 11.166920160 16.080 16.545 16.328   15.915 WN3o 20 0
46 HD 36402 WR* 05 26 03.9637892880 -67 29 57.087864096   11.25 11.621 11.65   (WC) 138 0
47 HD 36521 WR* 05 26 30.2591541144 -68 50 27.500574192   12.156 12.317 12.529   WC4+O6III/V+O 84 0
48 Brey 33 WR* 05 26 36.8640 -68 50 59.640   14.591 14.77     WN4(h)a 31 0
49 HD 269549 WR* 05 26 42.5908088736 -69 06 57.344865912 14.308 14.53 14.76 15.11 14.589 WN4b 46 0
50 HD 269546 WR* 05 26 45.3202797576 -68 49 52.787839260 9.00 9.83 9.86 9.76 9.76 WN5b(h)+B3I 108 0
51 Brey 37 WR* 05 27 37.6898837256 -70 36 05.324162832 12.875 13.85 14.07 14.43 14.249 WN4o+OB 39 0
52 LHA 120-S 108 WR* 05 27 42.6930652824 -69 10 00.379546536 12.243 13.232 13.41 13.67 13.287 WN8ha 43 0
53 HD 269582 WR* 05 27 52.6621673400 -68 59 08.488879836 12.206 10.818 11.093 12.70 11.234 WN10h 108 0
54 Brey 38 WR* 05 28 17.9135754480 -69 02 35.894733612   15.22 15.26     WN4o 32 0
55 HD 269618 WR* 05 29 12.3651158016 -68 45 36.147697236 14.391 15.104 15.295 15.32 15.222 WN3b 31 0
56 HD 269624 WR* 05 29 31.6376299080 -68 54 28.817207028 14.008 14.491 14.781 14.81 14.703 WN4b 46 1
57 Brey 40a WR* 05 29 33.2070992328 -70 59 34.838770092 12.472 13.20 13.39 13.90 13.743 WN4:b+O8V 41 0
58 Brey 41 WR* 05 29 53.6514294768 -69 01 04.805719284   13.740 13.70     WN5h 20 0
59 Brey 42 WR* 05 30 02.4527669472 -68 45 18.387861660 14.146 14.939 15.201   15.213 WN3b 32 0
60 HD 37026 WR* 05 30 12.1637529576 -67 26 08.329055928 12.853 13.16 13.53 13.56 13.856 WC 76 0
61 HD 37248 WR* 05 30 38.703 -71 01 47.80 12.319 12.983 12.99 13.39 13.413 WC4+O9 56 0
62 Brey 44a WR* 05 31 18.0558143832 -69 08 45.425541264   14.55 14.26 14.26   WN8ha 26 0
63 HD 269687 WR* 05 31 25.5247745448 -69 05 38.556251700 10.86 11.78 11.87 12.05   WN11h 110 0
64 HD 269692 WR* 05 31 32.8704053376 -67 40 46.605246924 13.592 14.28 14.49 14.70 14.519 WN4b 46 0
65 Brey 45 WR* 05 31 34.3667195064 -67 16 29.329573872 14.146 14.696 14.897 15.02 14.835 WN4b 32 0
66 Brey 47 WR* 05 32 07.4960150664 -68 26 31.570497852 14.772 15.35 14.97 15.02 14.373 WN7h 34 0
67 HD 269748 WR* 05 33 10.5705227928 -67 42 43.053720228 12.093 13.054 13.186   12.828 WN4b+O8: 49 0
68 Brey 49 WR* 05 33 10.8684124200 -69 29 01.010415480 13.435 14.227 14.42   14.512 WN4(h)a 24 0
69 HD 37680 WR* 05 34 19.2493989720 -69 45 10.295445528 12.807 12.98 13.25 13.21 13.490 WC 74 1
70 Brey 51 WR* 05 34 37.4804641440 -66 14 37.993247196 14.196 15.041 15.312   15.273 WN3(h) 23 0
71 Brey 52 WR* 05 34 52.0245405048 -67 21 28.974967020 13.624 14.451 14.597 14.84 14.719 WN4ha: 44 0
72 HD 269784 WR* 05 34 59.3904949944 -69 44 06.296661528 13.347 14.081 14.073   14.321 WN4o+O9: 33 0
73 Brey 55 WR* 05 35 15.18 -69 05 43.1 15.612 15.542 15.389     WN4o 22 0
74 Brey 54 WR* 05 35 29.7912404064 -67 06 49.401360900 14.351 15.082 15.360   15.427 WN3(h) 24 0
75 Brey 56 WR* 05 35 42.1981380456 -69 12 34.589718936 12.969 13.708 13.587   13.325 WN5ha 38 1
76 Brey 58 WR* 05 35 42.2160 -69 11 54.240   14.62 14.13     O3If*/WN6 39 0
77 Brey 58a WR* 05 35 42.287 -69 11 52.57     16.5     WC 12 0
78 HD 269818 WR* 05 35 43.4946848112 -69 10 58.028050092 14.169 14.242 13.897 13.95 13.768 WR 41 0
79 Brey 60 WR* 05 35 44.279 -68 59 36.79 14.527 15.068 14.782 14.87 14.473 WN4+O8: 25 0
80 Brey 61 WR* 05 35 45.0258911688 -68 58 44.532708744 14.632 15.532 15.376   15.533 WN4h+O3: 26 0
81 Brey 63 WR* 05 35 50.6531355552 -68 53 39.203213352 13.730 14.578 14.59   14.841 WN5ha 22 0
82 Brey 63a WR* 05 35 52.4536264824 -68 55 08.629812120 14.703 15.438 15.584   15.670 WN3(h)a 20 0
83 HD 269848 WR* 05 35 54.0299886024 -67 02 48.969864816 13.694 14.06 14.34 14.65 14.440 WN4o 36 0
84 LHA 120-S 125 WR* 05 35 54.3748881672 -68 59 07.890914940 12.463 13.324 13.266 13.33 12.609 WN9ha 72 0
85 BAT99 77 WR* 05 35 58.889 -69 11 47.88           WN7 72 0
86 HD 269828 EB* 05 35 58.91 -69 11 47.3     13.031   12.837 WN7+O3 72 0
87 BAT99 78 WR* 05 35 59.085 -69 11 51.12   13.07 12.94     WN6(+O8V) 24 0
88 Brey 57 WR* 05 35 59.8168837680 -69 11 22.217610696 13.143 13.784 13.486   12.060 WN7ha+OB 35 0
89 BAT99 80 WR* 05 35 59.913 -69 11 50.70     13.0     O4If+OB 21 0
90 Brey 65a WR* 05 36 12.1333328856 -67 34 57.776239560 14.609 15.504 15.394   15.173 WN5h 20 0
91 Brey 66 WR* 05 36 33.6047711064 -69 09 17.324592156 15.636 15.937 16.108   15.627 WN3b 31 0
92 HD 269858 s*b 05 36 43.6936418088 -69 29 47.451149232   10.24 10.15 9.95 9.05 LBV 283 2
93 HD 38030 WR* 05 36 51.3798360240 -69 25 56.740737144 12.023 12.814 12.986 13.21 13.605 WC 40 0
94 HD 38029A WR* 05 36 54.633 -69 11 38.08           WC4 55 1
95 HD 38029 ** 05 36 55.16856 -69 11 37.6584 14.523     11.91 11.680 ~ 61 0
96 HD 38029B s*b 05 36 55.1865323232 -69 11 37.582606608           B1Ia+ 56 1
97 Brey 69 WR* 05 37 11.4810561480 -69 07 38.183877948 15.959 16.427 16.301   15.936 WN3o 25 0
98 Brey 70 WR* 05 37 29.2519905120 -69 20 47.580754164 12.862 13.975 13.686 14.02 14.140 WR 28 0
99 Brey 70a WR* 05 37 35.7045940032 -69 08 40.251941520 17.387 17.957 16.924   16.324 WN4b/WCE 29 0
100 HD 269883 WR* 05 37 40.4906298216 -69 07 57.672227892 13.454 14.184 14.077 14.03 13.492 WN7h 47 0
101 HD 269888 WR* 05 37 44.6348625936 -69 14 25.673976456 14.413 14.772 14.628 14.81 14.761 WR 46 0
102 Brey 73 WR* 05 37 46.3440 -69 09 09.360   12.222 12.11     WN6(h) 38 1
103 HD 269891 WR* 05 37 49.0343945856 -69 05 08.218283928 11.791 9.447 11.39 11.55   WN6+B1Ia 70 0
104 Brey 74a WR* 05 37 51.3386549880 -69 09 46.690186716 12.483 13.474 13.446 13.62 13.278 O3If* 36 0
105 HD 269908 WR* 05 38 27.7009045560 -69 29 58.546136796 14.243 14.40 14.29 14.59 14.230 WN4b 43 0
106 RMC 135 WR* 05 38 33.6193296576 -69 04 50.510501688   12.63 13.48     WN7h+OB 59 0
107 Brey 81 WR* 05 38 36.4071127800 -69 06 57.534295248   14.02 13.76   12.80 WN8 34 0
108 BAT99 97 WR* 05 38 38.8401788208 -69 06 49.549699584   14.23 13.74   13.20 O3.5If*/WN7 29 0
109 Brey 79 WR* 05 38 39.1442162640 -69 06 21.297619692     13.5 13.33   WN6 34 0
110 Brey 78 WR* 05 38 40.2960 -69 05 59.640           O2.5If*/WN6 39 0
111 Brey 75 WR* 05 38 40.53 -69 05 57.2   12.84 12.75   12.34 WN6h 62 0
112 RMC 140a WR* 05 38 41.5967462055 -69 05 13.457120148   12.18 12.12   12.40 WN4+WC5 35 0
113 RMC 140 WR* 05 38 41.61576 -69 05 13.9632   11.213 11.149 11.792   WN7+WC4/5pec 80 0
114 RMC 140b WR* 05 38 41.6202115352 -69 05 15.192382434   12.61 12.66   12.54 WN6 31 0
115 Brey 76 WR* 05 38 41.8800 -69 06 13.680     12.5     O2If*/WN5 33 1
116 Brey 77 WR* 05 38 42.1044150840 -69 05 55.335965424     12.86   12.79 O2If* 79 0
117 BAT99 106 WR* 05 38 42.338 -69 06 03.21   12.83 12.93     WN5h 67 0
118 RMC 139 WR* 05 38 42.3537501576 -69 04 58.196699796   12.04 11.94     O6.5Iafc+O6Iaf 93 0
119 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2018 2
120 BAT99 108 WR* 05 38 42.396 -69 06 02.87   12.78 12.77     WN5h 84 0
121 BAT99 111 WR* 05 38 42.745 -69 06 03.70   13.51 13.66     WN9ha 49 0
122 BAT99 112 WR* 05 38 42.9162 -69 06 04.938   12.95 12.86     WN5h 60 0
123 BAT99 113 WR* 05 38 43.12 -69 05 46.8   13.56 13.47   13.44 O2If*/WN5 44 0
124 BAT99 114 WR* 05 38 43.20 -69 06 14.6   13.52 13.40   13.31 O2If*/WN5 37 0
125 RMC 136a Cl* 05 38 43.3 -69 06 08           ~ 151 2
126 Brey 83 WR* 05 38 44.0630210280 -69 05 55.683258756           WC4 26 0
127 Brey 84 HXB 05 38 44.2508644296 -69 06 06.004573020     13.10   12.70 WN5h:a 68 0
128 HD 269926 WR* 05 38 47.5179121824 -69 00 25.287752196 11.953 12.974 13.116 13.16 12.926 WN4+OB 69 0
129 HD 38282 WR* 05 38 53.3783458680 -69 02 00.895545204   10.98 11.11 11.26   WN5/6h+WN6/7h 170 1
130 HD 269928 WR* 05 38 57.0667692816 -69 06 05.660419140   12.02 11.94 12.00 11.58 WN6/7 133 0
131 W61 3-8 WR* 05 38 58.0963884840 -69 29 19.558532292       12.51 12.43 WN9h 53 0
132 Brey 90a WR* 05 39 03.7764480936 -69 03 46.565761680 16.190 15.895 15.834   15.533 WC5 26 0
133 HD 38344 WR* 05 39 11.3190030600 -69 02 01.571056044 12.323 13.04 12.993 13.07 12.574 WN5h 73 0
134 Brey 93 WR* 05 39 34.3017622440 -68 44 09.155562972 14.291 15.626 15.204   15.620 WO3 66 0
135 Brey 93a WR* 05 39 36.1929497064 -69 39 11.174764248           WN4 17 0
136 HD 38448 WR* 05 39 56.1038237112 -69 24 24.256772136 12.073 12.894 12.996 13.42 13.150 WR 47 0
137 HD 269956 WR* 05 40 07.5344560704 -69 24 31.913547048 12.043 13.014 13.166 13.51 13.205 WN2.5-3+B1V+O4V+O6.5V 50 0
138 Brey 95a WR* 05 40 13.6760553072 -69 24 02.732485608   12.07 12.2     G: 20 0
139 Brey 96 WR* 05 40 50.7849505008 -69 26 31.687448928 14.965 15.549 15.718   15.494 WN3b 23 0
140 Brey 97 WR* 05 41 48.5696784312 -70 35 30.785347248 13.570 14.522 14.701 14.50 14.834 MN3ha+O5V 27 1
141 LHA 120-S 142 WR* 05 44 31.0203138528 -69 20 15.441467316 11.946 12.85 12.71 12.80 12.260 WN11h 34 0
142 Brey 98 WR* 05 44 53.7279459672 -67 10 36.132882708       14.571 14.45 WN3/5 32 0
143 Brey 99 WR* 05 45 24.1680967944 -67 05 56.733951696 14.221 14.69 14.81 14.88 14.371 WN4b(h) 38 0
144 LHA 120-S 61 WR* 05 45 51.9388258704 -67 14 25.937264544 10.870 11.86 11.95 12.09 11.931 WN11h 86 0

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