2010AJ....140...14S

Query : 2010AJ....140...14S

2010AJ....140...14S - Astron. J., 140, 14-24 (2010/July-0)

Variability of luminous stars in the Large Magellanic Cloud using 10 years of ASAS data.

SZCZYGIEL D.M., STANEK K.Z., BONANOS A.Z., POJMANSKI G., PILECKI B. and PRIETO J.L.

Abstract (from CDS):

Motivated by the detection of a recent outburst of the massive luminous blue variable LMC-R71, which reached an absolute magnitude MV= -9.3 mag, we undertook a systematic study of the optical variability of 1268 massive stars in the Large Magellanic Cloud, using a recent catalog by Bonanos et al. as the input. The ASAS All Star Catalog provided well-sampled light curves of these bright stars spanning 10 years. Combining the two catalogs resulted in 599 matches, on which we performed a variability search. We identified 117 variable stars, 38 of which were not known before, despite their brightness and large amplitude of variation. We found 13 periodic stars that we classify as eclipsing binary (EB) stars, 8 of which are newly discovered bright massive EBs composed of OB-type stars. The remaining 104 variables are either semi- or non-periodic, the majority (85) being red supergiants (RSGs). Most (26) of the newly discovered variables in this category are also RSGs with only three B and four O stars.

Abstract Copyright: ∼

Journal keyword(s): binaries: eclipsing - Magellanic Clouds - stars: massive - stars: variables: general

VizieR on-line data: <Available at CDS (J/AJ/140/14): table3.dat>

Simbad objects: 124

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Number of rows : 124
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11146 1
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7065 0
3 AL 17 Em* 04 45 41.4642951000 -67 34 13.891034748 12.829 13.558 13.708 13.70 13.406 OB: 12 0
4 SK -69 9 EB* 04 49 51.4128216888 -69 12 04.284938484 11.645 12.41 12.541   12.596 OB 7 0
5 2MASS J04514701-6919041 V* 04 51 46.9630530936 -69 19 04.370693448 12.413 13.324 13.156   13.430 O9.7Ib 3 0
6 HD 268757 s*y 04 54 14.2558856832 -69 12 36.442179792 15.702 11.662 10.157 9.21 8.52 G8_0 87 0
7 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
8 SK -70 18 EB* 04 56 16.5166022760 -69 59 37.331549412   12.99 13.1   13.019 OB 11 0
9 HD 268835 s*b 04 56 47.0795205816 -69 50 24.769621212 10.21 10.77 10.63 10.72 10.16 B8[e] 111 0
10 SP77 29-15a s*r 04 56 51.2739867240 -66 23 49.003412424 16.430 15.083 13.149   10.518 K:I 10 1
11 BI 53 V* 04 59 15.7774252872 -69 42 55.271339604 13.083 13.944 14.066   14.263 B0III 8 0
12 HD 269006 s*b 05 02 07.3942092168 -71 20 13.116800076 9.93 10.60 10.55 10.43 10.38 LBV 251 0
13 HD 268960 V* 05 03 12.6982527768 -69 01 37.040851884 11.218 12.01 12.166   12.443 O(f)+B1I? 19 0
14 SK -66 54 V* 05 04 03.9571994016 -66 04 09.227904456   13.919 14.149   14.197 B0 6 0
15 SP77 39-3 s*r 05 04 09.8230744080 -70 12 17.661513096 14.923 14.404 12.916 11.86   M1I 13 0
16 SV* HV 888 s*r 05 04 14.1159675000 -67 16 14.402052984 15.876 13.949 11.861 9.60   M4Ia 58 0
17 SV* HV 5593 s*r 05 04 41.7647232552 -70 42 37.168533972 16.963 15.224 13.336 12.09 10.567 M2.5I 31 0
18 SP77 40-6 s*r 05 04 54.1380056568 -70 33 18.664440588 14.833 14.474 12.846 11.81 10.840 M0-1I 18 0
19 SP77 40-8a s*r 05 05 09.9689998392 -70 40 03.546768540 16.133 14.564 12.676 10.67 10.698 M0I 17 0
20 SV* HV 894 s*r 05 05 33.4835684232 -70 33 46.837711008 14.453 14.374 12.976 10.98 11.124 M4I 25 0
21 SV* HV 2331 s*r 05 05 56.6768238216 -70 35 23.845757244 16.592 14.744 12.816 11.67 10.445 M2.5I 24 1
22 SV* HV 897 s*r 05 05 59.5117807296 -70 48 11.329063344 16.763 15.314 13.486 12.23 8.920 M4I 20 0
23 SV* HV 5618 s*r 05 07 05.6688077328 -70 32 44.222082468 15.853 13.824 11.584 10.61   M1I 25 0
24 SV* HV 903 s*r 05 07 32.4920480712 -70 39 04.228095852 17.143 15.284 13.136 11.88 10.823 M2I 13 0
25 HD 269101 s*b 05 09 45.1932448776 -68 46 09.875716680   12.00 12.03 11.950   B3Iab 23 0
26 BI 98 EB* 05 12 30.3961191264 -67 27 14.384496528 13.160 13.944 14.050 14.22 14.023 B1:V 10 0
27 SV* HV 2360 LP* 05 12 46.3626163152 -67 19 37.860456720 16.869 15.137 12.998   9.604 M4 40 0
28 HD 269216 Em* 05 13 30.7805703864 -69 32 23.647476948 10.227 10.84 11.123 10.96 10.573 OBe 50 0
29 HD 34664 s*b 05 13 52.9937299920 -67 26 54.820789332 11.509 11.88 11.774 11.63 10.991 B0/0.5I[e] 95 0
30 SV* HV 916 s*r 05 14 49.7383603560 -67 27 19.785018240 16.672 14.468 12.296   9.675 M3I 42 0
31 SV* HV 2440 s*r 05 17 56.3547206808 -69 40 25.365695952   14.81 13.172 11.94 11.053 M2.5I 20 0
32 WOH S 229 s*r 05 19 03.2484733440 -69 39 55.262351268 13.443 13.214 11.41 8.60 9.543 M1I 20 0
33 SV* HV 2450 LP* 05 19 53.2668825000 -68 04 03.693824616   14.38 10.76 9.28   M1 23 0
34 SV* HV 5760 s*r 05 19 53.2879309824 -69 27 33.578277588 16.183 14.404 12.486 9.83 10.383 M3I 33 0
35 SP77 47-5 s*r 05 20 23.6114292480 -69 33 26.920686636   14.18 12.23 10.29   M3I 20 0
36 SK -65 47 s*b 05 20 54.7193542416 -65 27 17.880205176 11.451 12.270 12.466   12.741 O4If 19 0
37 SV* HV 12017 s*r 05 21 27.9691007280 -69 30 16.277372568 17.914 15.324 13.546 12.39 10.718 M3.5Ia 20 0
38 NAME LMC Bar PoG 05 22 08 -69 23.5           ~ 310 0
39 HD 36063 WR* 05 22 22.5295596384 -71 35 58.154210736 11.583 12.43 12.66 12.85 12.602 WN7 71 0
40 SV* HV 2475 s*r 05 22 31.0971340848 -69 34 05.195490960 16.523 14.984 13.126 12.07 11.120 M2Ia-Iab 15 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 [W60] B84 s*r 05 23 02.7493620432 -69 20 37.124855736 16.923 15.114 13.236 12.13 11.024 M2Iab 17 0
43 SP77 47-9 s*r 05 23 33.9853842960 -69 19 06.919589856 16.143 14.544 12.706 11.76 10.863 K3.5Ia-Iab 20 0
44 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17432 0
45 SV* HV 5827 V* 05 25 06.3344442456 -71 27 51.869433708 13.001 13.784 14.052   14.201 OB 8 0
46 SV* HV 957 s*r 05 25 44.8532668824 -69 04 48.910485216 15.903 15.164 13.516 12.25   M4Iab 29 0
47 SK -67 102 EB* 05 26 00.9030233088 -67 03 10.027847664 12.363 13.394 13.606   13.633 OB 8 0
48 SK -67 105 EB* 05 26 06.1884853848 -67 10 56.784543384 11.785 12.27 12.42   11.661 OB 39 0
49 SV* HV 2532 s*r 05 26 27.4009535352 -69 10 55.829136468 16.733 15.474 13.626 12.22 10.738 M4.5Iab 32 0
50 [W60] A3 s*r 05 26 28.2367633992 -69 07 57.640428084 17.063 15.084 13.126 10.81 10.993 M1Iab 23 0
51 SV* HV 2544 s*r 05 27 14.2208111808 -69 11 10.940486496 17.622 14.830 13.692 12.13 10.756 M2Ia 20 0
52 SV* HV 2543 EB* 05 27 27.3922227816 -67 11 54.502222164 11.913 13.014 13.206   13.055 OB 23 0
53 SV* HV 5845 LP* 05 27 29.6778504600 -67 14 13.134585876 15.323 14.394 12.856 11.62   ~ 17 0
54 [W60] A8 s*r 05 27 47.5065412728 -69 13 20.593233840 14.493 14.264 12.736 11.51 10.349 M4Iab 29 0
55 HD 269582 WR* 05 27 52.6621673400 -68 59 08.488879836 12.206 10.818 11.093 12.70 11.234 WN10h 108 0
56 [W60] A12 s*r 05 28 08.0615511648 -69 13 11.070537600 16.723 15.074 13.066 11.86 10.721 M3Ia 17 0
57 SV* HV 2559 s*r 05 28 15.8883389040 -69 12 01.022135724 15.473 14.724 13.056 11.97   M2Iab 15 0
58 SK -69 148 s*y 05 28 27.9201154224 -69 12 57.413507868 14.093 12.54 10.93 10.23   G2Ia 20 0
59 SV* HV 2561 s*r 05 28 28.8554480760 -68 07 08.066483652 16.633 14.89 12.74     M2Ia 34 1
60 [M2002] LMC 141507 s*r 05 28 30.3418219992 -69 00 44.501286276 17.024 14.934 13.036 11.97 11.033 M0Iab 10 0
61 SV* HV 2565 s*r 05 28 31.5302873136 -69 05 31.032305196 16.883 15.304 13.286 12.04 10.900 M4Ia-Iab 20 0
62 SV* HV 2566 s*r 05 28 36.0019623864 -68 26 15.486153108 16.693 14.614 12.606   11.075 M3.5Ia-Iab 18 0
63 SV* HV 2567 s*r 05 28 36.5894149896 -68 42 38.571206220 16.353 14.674 12.706   11.505 M2.5Ia/Iab 20 1
64 SP77 45-24 s*r 05 28 43.1684310912 -67 18 28.455690240 16.613 14.784 12.896 10.07   K7I 16 0
65 [W60] A18 s*r 05 28 45.4760829936 -68 58 02.295660648 14.573 13.854 12.206 11.12   M1Ia-Iab 28 0
66 SV* HV 5870 s*r 05 29 03.4755799248 -69 06 46.213847784 17.762 15.844 13.762 12.25 10.781 M3.5Iae 43 0
67 [W60] A22 s*r 05 29 08.3990718696 -69 12 18.391010148 17.143 15.264 13.326 12.14 9.131 M2Iab 18 0
68 [W60] A23 s*r 05 29 20.9973449496 -68 47 31.376244912   13.76 12.070 9.78 10.211 M0Ia-Iab 34 1
69 [W60] A26 s*r 05 29 21.4187527920 -69 00 20.293397352 11.853 12.564 12.016 9.77 10.025 K5Iab 29 0
70 [W60] A27 s*r 05 29 42.2029886736 -68 57 17.351953992   14.04 12.15 10.99   M2.5Ia-Iab 37 0
71 [W60] A28 s*r 05 29 43.9517284608 -69 05 49.968476124 16.663 14.444 12.366 11.24   M2.5Ia-Iab 19 0
72 SV* HV 5879 s*r 05 29 54.7410703152 -69 04 15.698158896 15.893 14.404 12.407 9.81 10.605 K5Iab 32 0
73 [W60] D17 s*r 05 30 02.2715021712 -67 02 45.077639712 14.883 13.05 11.29 9.21   K5I 19 0
74 [W60] A30 LP? 05 30 02.9112931584 -68 46 03.840320676 16.733 14.804 12.896 10.75 9.496 ~ 17 0
75 SP77 46-50 s*r 05 30 04.5905335488 -68 47 28.783600404 17.093 14.894 12.957 11.94 11.093 K4Iab-Ib 24 0
76 [W60] A33 s*r 05 30 04.9306882488 -69 03 59.760551232   14.99 13.15 12.14   K5.5Iab 16 0
77 RM 1-481 s*r 05 30 22.0868340936 -67 06 31.588891344 16.569 14.264 12.816 11.82 11.045 M1I 13 0
78 SV* HV 2602 s*r 05 30 35.5356949872 -68 59 23.401523616   15.4 13.42 12.50   M5Ia 35 0
79 SV* HV 2604 s*r 05 30 41.4321297144 -69 15 33.843233304 17.444 15.212 13.567 11.14 10.540 M4Ia-Iab 25 0
80 SP77 45-45 s*r 05 30 45.1684337568 -67 07 59.320035048 17.153 15.184 13.286 12.12   M3I 13 0
81 HD 269662 sg* 05 30 51.4749432240 -69 02 58.590657600 10.23 10.52 10.28 10.40 10.390 A0Ia 103 0
82 SV* HV 2617 s*r 05 31 03.4270549896 -69 05 39.958356300 16.303 14.624 12.766 11.74   K5Iab-Ib 18 0
83 SV* HV 12998 s*r 05 31 04.1649450264 -69 19 03.044356284 17.846 15.751 14.395 11.81 10.696 M3.5Ia 29 0
84 SV* HV 986 s*r 05 31 09.2724627672 -67 25 55.024244616 16.923 14.824 12.866 11.61   M4I 26 0
85 SP77 46-54 s*r 05 31 15.4661885952 -69 03 58.820725980 16.343 15.124 13.316 12.11 9.840 M2.5Ia-Iab 19 0
86 SV* HV 2621 s*r 05 31 18.4366070616 -69 09 28.163881836 16.096 14.949 13.545 12.19 11.248 K5Iab 16 0
87 W61 23-12 s*r 05 31 47.4084838584 -67 23 03.302072160 17.003 15.114 13.216 12.10   M0I 15 0
88 HD 269700 s*b 05 31 52.2818122296 -68 32 38.857949016 9.71 10.56 10.54 10.38 10.38 B1.5Iaeq 84 0
89 [W60] D24 s*r 05 32 08.8144262736 -67 11 18.627436644 16.953 15.014 13.166 12.08   M1I 14 0
90 SV* HV 2652 s*r 05 32 35.3015362968 -69 07 51.600150984 17.458 14.977 13.562 12.13 9.701 M2.5Ia-Iab 14 0
91 SP77 53-3 s*r 05 32 59.8577888472 -68 35 54.754620072   13.97 11.92     K5Ia-Iab 15 0
92 [W60] D33 s*r 05 33 14.4764529264 -67 03 48.494588544 16.283 14.794 13.006 11.91 10.580 M1I 15 0
93 [W60] C10 s*r 05 33 20.8467356880 -67 30 31.817719980   14.199 12.210 11.482   M1Ia 25 0
94 W61 21-75 s*r 05 33 44.5472630352 -67 24 16.898651244 17.203 15.364 13.406 11.18   M1I 21 0
95 SV* HV 2674 s*r 05 33 52.1773966152 -69 11 13.568196012 17.580 16.214 13.807 11.77 9.425 M3Ia 22 0
96 HD 269770 * 05 34 33.2912098080 -69 46 06.025917864   11.94 10.93 8.74   K5 10 0
97 SV* HV 2681 s*r 05 34 33.7835764488 -69 15 02.430012168 16.433 15.044 13.156 11.93   M2Iab 20 1
98 CPD-69 394 WR* 05 34 36.0879084840 -69 45 36.503591616 11.428 12.10 12.131 12.41 12.136 B0I+WN 20 0
99 OGLE BRIGHT-LMC-ECL-17 EB* 05 34 41.3495543376 -69 31 38.667576432 12.739 13.672 14.050 13.79 13.966 O3If+O6V 23 0
100 HD 269810 Em* 05 35 13.8977747136 -67 33 27.542449260   12.08 12.22 12.53   O3III(f*) 106 0
101 SV* HV 11088 s*r 05 35 24.5264369472 -69 04 03.386938656 18.577 15.951 14.165 12.95 11.370 M2.5Ia-Iab 29 0
102 SP77 54-20 s*r 05 35 32.8115251320 -69 04 19.158367836 14.933 14.634 13.126 12.03   M0Iab 18 0
103 SP77 54-22 s*r 05 35 51.9608283096 -69 22 29.062014708 15.733 14.604 12.806 11.76   K4.5Iab-Ib 19 0
104 HD 37974 s*b 05 36 25.8534763728 -69 22 55.789571064 10.056 11.12 10.99 11.00 10.423 B0.5e 122 0
105 [MG73] 59 s*y 05 36 26.7712789344 -69 23 51.238468392 13.213 12.20 10.68 10.17   G1Ia 15 0
106 NAME HMW1 Cl* 05 36 43.7 -69 29 48           ~ 6 1
107 SP77 54-23c s*r 05 37 20.5039834752 -69 19 38.658552024 16.379 14.064 12.526 11.50 10.704 K4Iab 23 0
108 SV* HV 2728 s*r 05 37 36.8034711336 -69 29 23.520221016   16.42 13.759 12.74 11.112 M0.5-M4.5Ia-Ib 26 0
109 [W60] A65 s*r 05 37 45.1058994144 -69 20 48.651122868 13.043 13.074 12.166 11.20 10.520 M4Ia-Iab 20 0
110 HD 269891 WR* 05 37 49.0343945856 -69 05 08.218283928 11.791 9.447 11.39 11.55   WN6+B1Ia 70 0
111 CPD-69 444 V* 05 37 59.1780488040 -69 27 12.247690896 11.212 12.069 12.267   12.370 O7.5Ib(f) 10 0
112 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2019 2
113 V* RS Dor s*r 05 39 46.1344845336 -69 19 28.247928528 17.877 15.846 13.819 12.41 11.289 M3Ia-Iab 20 0
114 RM 1-738 s*r 05 40 16.9687658616 -69 27 53.922008700 16.967 14.604 13.026 11.91 10.656 M3Ia 15 0
115 [W60] A81 s*r 05 40 24.4376635584 -69 21 17.065609488 15.753 15.164 13.186 11.92 10.730 M2Ia 26 0
116 SV* HV 2770 s*r 05 40 36.9269323320 -69 26 20.344887528 17.023 15.284 13.366 12.16 11.017 M3.5Ia 18 0
117 SV* HV 5993 s*r 05 40 43.7364458184 -69 21 58.170933684 17.639 15.294 13.576 12.16 10.494 M3Ib 26 0
118 [W60] A88 s*r 05 40 55.3016290944 -69 23 25.343278404 17.013 15.154 12.956 11.68 10.480 M3Iab 24 0
119 SV* HV 1017 s*r 05 40 59.1936311760 -69 18 36.205624908 16.925 15.524 13.296 11.85 10.824 M5Iab 27 0
120 SV* HV 2781 s*r 05 41 06.8876267592 -69 17 14.709920172 17.093 15.414 13.356 12.04 10.637 M2Iab 27 0
121 SV* HV 2798 s*r 05 42 35.3514215520 -69 08 48.417592164 16.433 14.634 12.616   10.331 M1.5I 23 0
122 SP77 54-55 s*r 05 43 02.0433093936 -69 05 49.783736004 16.903 15.064 13.096 11.95   M0I 13 0
123 [W60] A103 LP? 05 43 10.4762969616 -69 44 55.306468932 17.054 15.237 13.270   11.016 M 11 0
124 SK -67 270 EB* 05 47 10.6824050064 -67 58 54.917942196 12.913 13.339 13.517 13.99 13.841 OB 8 0

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