2000A&A...359..573H

Query : 2000A&A...359..573H

2000A&A...359..573H - Astronomy and Astrophysics, volume 359573-585 (2000/7-2)

Doubling the number of Be/X-ray binaries in the SMC.

HABERL F. and SASAKI M.

Abstract (from CDS):

A correlation of X-ray source and Hα emission-line object catalogues in the Small Magellanic Cloud (SMC) shows that more than two thirds of the optically identified Be stars in Be/X-ray binaries are found as emission-line objects in the catalogues. On the basis of this result we propose up to 25 X-ray sources mainly from recent ROSAT catalogues as new Be/X-ray binaries and give their likely optical counterparts. Also for the five yet unidentified X-ray pulsars in the SMC we propose emission-line stars as counterparts. This more than doubles the number of known high mass X-ray binary systems in this nearby galaxy. The spatial distribution of the new candidates is similar to that of the already identified Be/X-ray binaries with a strong concentration along the SMC main body and some systems in the eastern wing. The new candidates contribute mainly to the low-luminosity end of the X-ray luminosity distribution of Be/X-ray binaries. A comparison with the luminosity distribution in the Milky Way reveals no significant differences at the high-luminosity end and the large number of low-luminosity systems in the SMC suggests that many such systems may still be undetected in the Galaxy. The overall ratio of known Be to OB supergiant X-ray binaries in the SMC is an order of magnitude larger than in the Galaxy, however, might show spatial variations. While in the eastern wing the ratio is comparable to that in the Galaxy no supergiant X-ray binary is currently known in the main body of the SMC. Possible explanations include a different star formation history over the last ∼15My.

Abstract Copyright: ∼

Journal keyword(s): galaxies: Magellanic Clouds - galaxies: stellar content - stars: variables: general - X-rays: stars

Nomenclature: Table 1: [HS2000] NN (Nos 1-60).

CDS comments: in ref list: Inoue 1983IAUS..101..535 instead of p.237

Simbad objects: 116

goto View the references in ADS

Number of rows : 116
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 RX J0032.9-7348 HXB 00 32 56.1 -73 48 19           ~ 15 0
2 [MA93] 22 PN 00 41 09.23 -73 06 46.2   17.706 17.769   17.725 ~ 7 0
3 RX J0041.2-7306 HXB 00 41 16.4 -73 06 41   18.4       ~ 5 0
4 RX J0045.6-7313 HXB 00 45 37.9 -73 13 54   18.3       Be 16 1
5 [MA93] 114 Em* 00 45 42.7 -73 13 43     17.2     ~ 6 0
6 RX J0047.2-7239 X 00 47 18.1 -72 39 48           ~ 19 2
7 OGLE SMC-LPV-6370 S* 00 47 19.2634934669 -72 40 04.447704748 19.22 17.62 17.73   13.91 S 18 0
8 [MA93] 172 HXB 00 47 23.3388222768 -73 12 27.370134648   15.85 15.85   15.872 B1-B1.5V 58 0
9 SNR B0045-73.4 SNR 00 47 32.9 -73 07 46           ~ 52 0
10 DEM S 32 HII 00 47 43.9 -73 08 22           ~ 26 0
11 NAME SMC Symbiotic star 3 Sy* 00 48 20.0193584904 -73 31 52.072861548 16.66 16.23 14.74   13.13 M0e 84 0
12 LIN 110 HXB 00 48 34.1207019888 -73 02 31.309413396 14.00 14.79 14.899 14.66 14.737 B1.5e 24 0
13 RX J0049.0-7250 HXB 00 49 03.35 -72 50 52.4   17.01 16.898   16.686 B3:V 56 0
14 RX J0049.2-7311 HXB 00 49 13.6255324536 -73 11 37.869710892   16.52 16.555   16.320 B1e 50 1
15 [MA93] 302 HXB 00 49 30.5118509709 -73 31 09.168138467   14.6 14.655 14.170 14.5 ~ 18 0
16 LIN 139 HXB 00 49 42.0078068952 -73 23 14.676382752 14.09 15.00 14.98   14.70 O9.5-B0.5III-V 80 0
17 V* DZ Tuc HXB 00 50 44.7079466208 -73 16 05.430164196 14.46 15.37 15.396   15.225 B0-B0.5V 82 0
18 [MA93] 393 HXB 00 50 47.6264758680 -73 32 38.843472156 14.96 15.64 15.61   15.42 B1-5(III)e? 13 0
19 [MA93] 413 HXB 00 50 56.9992401408 -72 13 34.582439136   14.97 15.05     B0.5III-V 66 0
20 [MA93] 414 HXB 00 50 57.1198007064 -73 10 08.171604840   14.43 14.522   14.403 B0.5e 27 0
21 [MA93] 447 Em* 00 51 16.2196788072 -72 50 43.260621900     16.3     ~ 6 0
22 RX J0051.3-7250 HXB 00 51 18.93 -72 50 36.5           Be 10 0
23 LHA 115-S 14 s*r 00 51 50.4984441048 -71 59 24.223987752   14.93 12.66     K3.5Iab 24 0
24 RX J0051.8-7159 X 00 51 51.4 -71 59 50   14.6       ~ 3 0
25 LIN 193 HXB 00 51 52.0250520000 -73 10 34.140066780 13.39 14.38 14.459 14.24 14.28 O9.5-B0V 79 0
26 AzV 102 HXB 00 51 53.1358981896 -72 31 48.721904580 13.66 14.79 14.38   14.40 O9.7V:ne 80 0
27 RX J0051.9-7255 HXB 00 51 54.20 -72 55 36.0           Be 10 0
28 [MA93] 521 Em* 00 51 59.8349464104 -72 55 23.257688916   15.08 15.4     Be 11 0
29 LIN 198 HXB 00 52 05.6251611744 -72 26 04.228773036 13.86 14.91 14.927 14.91 14.794 B0-5(II)e 187 0
30 LIN 203 HXB 00 52 13.9956976512 -73 19 18.812945496   14.66 14.67   14.534 O9.5IIIe/B0Ve 93 0
31 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
32 AzV 138 HXB 00 52 52.3001881056 -72 48 30.214927584 13.35 14.32 14.37   14.24 O9.2IIIp 32 0
33 LIN 221 HXB 00 52 55.2656173752 -71 58 06.287817144 14.37 15.47 15.53   15.34 B0-B1III-V 51 0
34 RX J0053.4-7227 HXB 00 53 23.8589408040 -72 27 15.445929456 15.06 16.11 16.202   16.125 B1-B2IV-V 36 0
35 RX J0053.5-7227 X 00 53 32.2 -72 27 04   17.0       ~ 8 0
36 [MA93] 717 HXB 00 53 52.1118059066 -72 26 38.981396514     14.980 13.734 14.989 ~ 23 0
37 RX J0053.9-7226 HXB 00 53 55.181 -72 26 44.88   14.65 14.72   14.757 B1III 97 0
38 [MA93] 772 Be* 00 54 32.9134382592 -72 27 41.868021024 14.41 15.37 15.37   15.30 B2III 8 0
39 RX J0054.5-7228 HXB 00 54 33.1 -72 28 08           Be 9 0
40 X SMC X-2 HXB 00 54 33.43 -73 41 01.3 13.77 16.40 16.38   14.67 O9.5III-V 143 0
41 LIN 268 HXB 00 54 55.8845128080 -72 45 10.958407380 13.83 14.73 15.003 14.73 14.784 B1e 55 0
42 [MA93] 810 HXB 00 54 56.1754603176 -72 26 47.859057060 14.17 15.24 15.28   15.327 O9V 79 0
43 [MA93] 904 HXB 00 56 05.5347974352 -72 21 59.452153740   15.84 15.88   15.494 B1V 36 0
44 * gam Cas HXB 00 56 42.5310945 +60 43 00.264089 1.18 2.29 2.39 2.32 2.40 B0.5IVpe 1253 0
45 [HFP2000] 270 X 00 57 15.4 -72 33 38   17.2       ~ 2 0
46 [MA93] 993 Em* 00 57 18.5944117344 -72 33 17.503078680   16.287 16.286   16.055 ~ 5 0
47 2MASS J00573272-7213022 AGN 00 57 32.7654620568 -72 13 02.183006892   15.4     17.706 ~ 17 0
48 AzV 191 s*b 00 57 37.2220707000 -72 13 09.258396096 12.36 13.41 13.52   13.68 B1.5:Iae 21 0
49 [MA93] 1036 HXB 00 57 49.5745148088 -72 02 35.873596896   15.52 15.64     B0-B2III-V 57 0
50 [MA93] 1038 HXB 00 57 50.3868809664 -72 07 56.130650112 14.63 15.64 15.69   15.420 B1-2(Be-Fe) 46 0
51 LIN 327 Em* 00 57 56.9568028848 -71 56 20.569827444   14.53 14.9     ~ 7 0
52 RX J0057.9-7156 HXB 00 57 58.2 -71 56 26   17.1       ~ 9 0
53 RX J0058.2-7231 HXB 00 58 12.5869662000 -72 30 48.759613812 13.91 14.98 14.87   14.62 B0IIIe 67 0
54 LHA 115-N 67 PN 00 58 37.095 -71 35 48.80   16.3 16.4 15.27 17.66 ~ 92 0
55 RX J0059.2-7138 HXB 00 59 12.7444006824 -71 38 44.962383408   14.07 14.01 14.36   B1-B1.5II-III 90 0
56 [HFP2000] 58 X 00 59 39.8 -71 40 55           ~ 2 0
57 LIN 357 PN 00 59 40.5128319264 -71 38 15.143769276   17.48 17.856   18.581 ~ 37 0
58 [MA93] 1240 HXB 01 01 02.8880678424 -72 06 58.964665824   15.68 15.757 15.52 15.576 B0-B2III-V 50 0
59 [MA93] 1257 HXB 01 01 20.6635900032 -72 11 18.965108724 14.41 15.36 15.49   15.53 B0.5-B2IV-V 52 0
60 RX J0101.6-7204 HXB 01 01 29.80 -72 04 02.0   16.4 17.7     Be 16 0
61 [MA93] 1277 Em* 01 01 36.8929963272 -72 04 15.009765564   15.42 16.3     B1V 8 0
62 LIN 389 HXB 01 01 52.2957451944 -72 23 34.045082376 13.84 14.57 14.94 15.48 14.85 O9-B0III 43 0
63 [HFP2000] 92 X 01 02 51.3 -71 57 43   15.1       ~ 3 0
64 LIN 399 Em* 01 02 53.6349170184 -71 57 35.866650024   14.24 15.3 15.48   ~ 5 0
65 [MA93] 1357 Em* 01 03 06.35 -72 32 52.1     19.4     ~ 6 0
66 WW 49 X 01 03 06.9 -72 32 58           ~ 3 0
67 RX J0103.1-7151 X 01 03 08.5 -71 51 50   18.8       ~ 3 0
68 [MA93] 1365 Em* 01 03 10.2110333160 -71 51 53.812335024   19.0 18.9 18.7 18.18 ~ 2 0
69 [MA93] 1367 HXB 01 03 13.9173060552 -72 09 14.258500452   14.70 14.79 15.0   B0.5IV-V 97 1
70 [MA93] 1393 HXB 01 03 37.5349856136 -72 01 33.204096336   14.54 14.65     B0III-V 79 0
71 [MA93] 1440 EB* 01 04 05.9607398598 -72 43 51.588227233   14.01 14.15   14.16 ~ 7 0
72 RX J0104.1-7243 HXB 01 04 07.40 -72 43 59.0 20.38 20.21 19.34   18.46 ~ 10 0
73 [MA93] 1470 HXB 01 04 35.4414218664 -72 21 48.461878224 14.07 15.18 15.13   14.98 B1.5e 18 0
74 [MA93] 1517 Em* 01 05 07.6763630472 -72 11 49.381956276     15.7     ~ 7 0
75 RX J0105.1-7211 HXB 01 05 09.941 -72 11 47.00   15.62 15.63 18.3   B1-B2III-V 54 1
76 LHA 115-S 44 Em* 01 05 41.5502096808 -72 26 04.032973608   14.01 14.1 14.37 13.86 B1.5II:e 11 0
77 RX J0105.7-7226 HXB 01 05 45.1 -72 26 09           ~ 7 0
78 [MA93] 1557 HXB 01 05 55.2533162708 -72 03 50.558808026 14.63 15.61 15.63 15.54   ~ 27 0
79 2E 0105.7-7251 HXB 01 07 09.9 -72 35 35   15.4 16.6     Be 13 0
80 SXP 65.8 HXB 01 07 12.6098206008 -72 35 33.884245680 14.72 15.52 15.64 15.5 15.73 B1-B1.5II-III 26 0
81 LEDA 3610705 G 01 09 01.1565936480 -72 29 05.298384012           ~ 11 0
82 [MA93] 1682 PN 01 09 03.508 -72 29 05.53   19.18 20.2     ~ 7 0
83 RX J0111.2-7317 HXB 01 11 08.5770101712 -73 16 46.308129384 14.40 15.42 15.52   15.29 B0.5-1Ve 76 0
84 SK 160 HXB 01 17 05.1457288392 -73 26 36.014808156 12.23 13.00 13.15   13.17 O9.7Ia+ 918 0
85 [MA93] 1845 HXB 01 17 40.1630558064 -73 30 50.523690888 13.30 14.14 14.18   14.09 B1-3(II)e 63 0
86 V* V662 Cas HXB 01 18 02.6976641952 +65 17 29.829200388 12.27 11.99 11.14 10.33 9.58 B1Iae 289 0
87 V* V635 Cas HXB 01 18 31.9704955824 +63 44 33.072603144 17.05 16.64 15.19 14.34 13.22 B0.2Ve 791 0
88 [MA93] 1867 HXB 01 19 39.0129715152 -73 30 11.585646468   15.77 15.8 15.99 15.54 B1.5-B2III-Ve 12 1
89 EM* GGA 104 HXB 01 47 00.2124077208 +61 21 23.663788056 11.76 12.09 11.366 11.00 10.52 B1IIIe 205 0
90 LS I +61 303 HXB 02 40 31.6644419688 +61 13 45.593918580 11.27 11.61 10.75 10.19 9.55 B0Ve 903 2
91 V* BQ Cam HXB 03 34 59.9116110096 +53 10 23.296879776   17.16 15.42 14.26 13.04 O8.5Ve 525 1
92 V* X Per HXB 03 55 23.0777456088 +31 02 45.039836148 6.090 6.840 6.720     O9.5III 1037 0
93 LS V +44 17 HXB 04 40 59.3296237272 +44 31 49.258049376 11.02 11.42 10.73 10.28 9.76 B0.2Ve 176 0
94 HD 34921 HXB 05 22 35.2313961840 +37 40 33.638562768 6.78 7.64 7.48     B0IVpe 140 0
95 HD 245770 HXB 05 38 54.5748918624 +26 18 56.836952784 9.30 9.84 9.39 8.77 8.30 O9/B0III/Ve 1045 0
96 V* V441 Pup HXB 07 28 53.5788273168 -26 06 28.897118208 11.27 12.29 11.83 11.53   O5Ve 91 0
97 V* V572 Pup HXB 08 12 28.3575205680 -31 14 52.138451400 12.14 13.03 12.74 12.44   B0.2IVe 76 0
98 2MASS J08355545-4311081 HXB 08 35 55.4597566608 -43 11 08.193290244     20.4     B0-2III-Ve 111 0
99 GRO J1008-571 HXB 10 09 46.9642314696 -58 17 35.603851848       14.63   B0e 269 0
100 LS 1698 HXB 10 37 35.3145142200 -56 47 55.869594756   12.00 11.48 11.38   B0III-Ve 120 0
101 WRAY 15-793 HXB 11 20 57.1736884968 -61 55 00.166078020 12.81 13.06 12.12     O9.5III/Ve 222 0
102 HD 102567 HXB 11 48 00.0214464120 -62 12 24.902384760 8.24 9.06 9.00 9.62   B1Vne 335 0
103 V* V850 Cen HXB 13 01 17.0968941216 -61 36 06.637549788   15.6 14.40     B2Vne 361 0
104 SAX J1324.4-6200 HXB 13 24 26.65128 -62 01 19.1280           Be? 28 0
105 4U 1416-62 HXB 14 21 12.1560262026 -62 41 56.089360085   17.9 17.2     B1e 171 0
106 SAX J1452.8-5949 HXB 14 52 52.70 -59 49 08.1           Be? 23 0
107 2MASS J15574819-5424541 HXB 15 57 48.3340005883 -54 24 54.353062409           B1-2V 119 0
108 AX J1700-419 HXB 17 00 04.3592083584 -41 58 05.584329854           Be? 26 0
109 AX J1749.2-2725 HXB 17 49 12.28 -27 25 37.4           B3V 39 0
110 2MASS J18203009-1434228 HXB 18 20 30.09648 -14 34 22.8828           B0-2IV-Ve 71 1
111 4U 1850-03 HXB 18 48 17.7 -02 25 13           Be? 114 1
112 XTE J1946+274 HXB 19 45 39.3568693200 +27 21 55.501637040   18.76 16.92 15.62 14.38 B0-1IV-Ve 138 0
113 V* V2246 Cyg HXB 20 32 15.2749858128 +37 38 14.843024844   22.16 19.41 17.32 15.18 B0Ve 480 0
114 GRO J2058+42 HXB 20 58 47.5371521256 +41 46 37.180486128   15.97 14.74 14.74 13.35 O9.5-B0IV-Ve 95 0
115 V* V490 Cep HXB 21 39 30.6903047304 +56 59 10.421969280   15.407 14.441 14.119   B1-B2Ve 186 0
116 BD+53 2790 HXB 22 07 56.2366802328 +54 31 06.408879888 9.4 10.11 9.84 9.64 9.43 O9.5Vep 233 0

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