2014A&A...562A.125K


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.23CET09:43:20

2014A&A...562A.125K - Astronomy and Astrophysics, volume 562A, 125-125 (2014/2-1)

Variability of massive stars with known spectral types in the Small Magellanic Cloud using 8 years of OGLE-III data.

KOURNIOTIS M., BONANOS A.Z., SOSZYNSKI I., POLESKI R., KRIKELIS G., UDALSKI A., SZYMANSKI M.K., KUBIAK M., PIETRZYNSKI G., WYRZYKOWSKI L., ULACZYK K., KOZLOWSKI S. and PIETRUKOWICZ P.

Abstract (from CDS):

We present a variability study of 4646 massive stars in the Small Magellanic Cloud (SMC) with known spectral types from the catalog of Bonanos et al. (2010AJ....140..416B) using the light curves from the OGLE-III database. The goal is to exploit the time domain information available through OGLE-III to gain insight into the processes that govern the evolution of massive stars. This variability survey of massive stars with known spectral types is larger than any previous survey by a factor of 7. We find that 60% of our sample (2766 stars) show no significant variability and 40% (1880 stars) exhibit variability distributed as follows: 807 stars display low-amplitude stochastic variability with fluctuations in the I-band of up to 0.05mag, 443 stars present irregular variability of higher amplitude (76% of these are reported as variables for the first time), 205 are eclipsing binaries (including 101 newly discovered systems), 50 are candidate rotating variables, 126 are classical Cepheids, 188 stars exhibit short-term sinusoidal periodicity (P<3-days) making them candidate ``slowly pulsating B stars'' and non-radial Be pulsators, and 61 periodic stars exhibit longer periods. We demonstrate the wealth of information provided in the time domain, by doubling the number of known massive eclipsing binary systems and identifying 189 new candidate early-type Be and 20 Oe stars in the SMC. In addition, we find that ∼80% of Be stars are photometrically variable in the OGLE-III time domain and provide evidence that short-term pulsating stars with additional photometric variability are rotating close to their break-up velocity.

Abstract Copyright:

Journal keyword(s): binaries: eclipsing - galaxies: individual: SMC - stars: early-type - stars: variables: general - stars: massive - stars: emission-line, Be

VizieR on-line data: <Available at CDS (J/A+A/562/A125): table1.dat-table10.dat refs.dat>

Simbad objects: 89

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Number of rows : 89

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 OGLE SMC713.06.000139 El* 00 29 23.7466740445 -73 44 24.628059901 16.71 17.32 17.26   17.36 B0-5(V) 4 0
2 2dFS 96 * 00 34 46.2584152293 -73 23 56.771664109 16.38 16.89 16.92   16.74 B5(III) 3 0
3 2MASS J00350293-7336588 * 00 35 02.9337750911 -73 36 59.078552670 15.01 15.42 15.36   15.51 B8(II) 3 0
4 OGLE SMC-ECL- 277 Al* 00 36 21.5355303529 -73 26 10.992626615 14.83 14.85 14.78 14.61 14.34 A2Ib 12 0
5 OGLE SMC-SC1 69251 EB* 00 38 04.89 -73 32 24.5   16.27 16.870   17.021 B0-5(V) 4 0
6 OGLE SMC-ECL- 425 WU* 00 40 08.96 -73 38 57.6   16.34 16.45   16.51 B0-5(IV) 7 0
7 2MASS J00401915-7304032 Be? 00 40 19.16 -73 04 03.3 15.18 16.14 15.84   15.90 B1-5(III) 5 0
8 OGLE SMC-SC2 69630 * 00 40 56.22 -73 07 19.1   16.93 16.62     B9(II) 3 0
9 OGLE SMC-SC2 59876 * 00 41 14.0637799898 -73 25 33.853000480 15.78 16.71 16.64   16.54 B0-5(IV) 3 0
10 2dFS 421 * 00 42 28.57 -72 39 27.2   16.45 17.54     B0-5(V) 3 0
11 2dFS 424 * 00 42 32.15 -73 22 02.2   14.57       B1-2(II) 4 0
12 2dFS 435 * 00 42 51.64 -73 47 55.6   15.06 15.61     B1-5(III) 4 0
13 LHA 115-S 3 Em* 00 43 36.90 -73 26 38.3 14.26 14.39 14.09   13.73 A7-F5Ie 14 0
14 OGLE SMC-ECL- 720 Al* 00 44 08.63 -73 14 18.5 13.25 14.08 13.86 14.50 14.38 B0(IV) 13 0
15 OGLE SMC-SC4 52 * 00 45 42.4840275303 -73 34 32.912549241 15.82 16.23 16.15   16.11 A0(II) 3 0
16 LIN 81 Al* 00 46 33.7451367568 -73 12 04.703471997 14.18 14.21 13.95   13.62 F5Ie+G0I 13 0
17 OGLE SMC-SC4 189819 cC* 00 47 53.43 -72 50 19.3   17.377 16.756   15.770 A3II 9 0
18 OGLE SMC-SC4 186342 Be? 00 48 30.5677232998 -72 55 47.543666097 13.34 14.20 14.29   14.46 B1-3(II) 5 0
19 LIN 110 HXB 00 48 34.1206830477 -73 02 31.310801020 14.00 14.79 14.84 14.66 14.833 B1.5e 20 0
20 AzV 44 WU* 00 48 47.4285669985 -73 24 59.294159534 12.91 13.53 13.85   13.69 B0IIw 11 0
21 OGLE SMC-ECL- 1844 WU* 00 50 18.4898151058 -72 38 56.311089198 13.84 14.72 14.93 15.19 15.38 B0.5(V) 10 0
22 LIN 198 HXB 00 52 05.6254079356 -72 26 04.230639207 13.86 14.91 14.91 14.91   B0-5(II)e 120 0
23 [MA93] 584 Em* 00 52 34.7082389886 -72 45 49.009676821   14.251 14.306   14.161 B1-2(II) 6 0
24 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9230 1
25 LIN 230 Em* 00 53 09.6088377146 -72 33 47.173319536 13.78 14.49 14.45   14.46 B5(II) 7 0
26 OGLE SMC-SC6 189913 EB* 00 53 43.88 -73 16 13.1 16.12 16.14 15.75   15.39 A7Ib 5 0
27 OGLE SMC-CEP-2123 cC* 00 53 50.4435853570 -74 01 36.188331843 16.12 16.89 16.03   16.19 A3II 8 0
28 OGLE J005359.22-723508.9 Be? 00 53 59.2178298654 -72 35 09.288899458 14.26 14.55 14.38   14.13 A3III 7 0
29 LHA 115-S 21 Em* 00 55 00.7984671705 -72 56 17.754772714 12.76 13.75 13.78   13.51 B0e 15 0
30 2MASS J00560699-7300028 Be? 00 56 06.99 -73 00 02.8   16.039 16.065   15.943 B0-5(IV) 5 0
31 2MASS J00562035-7336012 * 00 56 20.2965242425 -73 36 01.402107710   16.30 16.34     B0-5(IV)e? 3 0
32 NGC 330 Cl* 00 56 20.59 -72 27 12.5 9.37 9.76 9.55   8.89 ~ 361 0
33 Cl* NGC 330 ELS 110 * 00 56 20.672 -72 26 25.49   16.38 16.57     B2IV 8 0
34 OGLE SMC-CEP-2749 cC* 00 57 52.0025813102 -74 06 16.980378483 17.31 17.65 17.22   16.67 A3Ib 6 0
35 RX J0058.2-7231 HXB 00 58 12.5870706987 -72 30 48.761117528 13.91 14.98 14.87   14.62 B0IIIe 56 0
36 AzV 204 Al* 00 58 22.02 -72 35 16.5 13.57 13.93 14.34   14.39 B0.5(III) 11 0
37 NGC 346 Cl* 00 59 05.090 -72 10 33.24           ~ 443 0
38 OGLE SMC-SC8 116273 cC* 00 59 35.36 -73 03 18.5   18.096 17.684   17.062 A3II 8 0
39 OGLE SMC-ECL- 4026 WU* 00 59 36.20 -72 15 56.9   14.42 14.65 14.62 14.81 B0.5Vn 10 0
40 OGLE SMC-SC8 192930 El* 00 59 49.3858633332 -72 32 52.648286234 15.43 16.27 16.30   16.50 B0-5(V) 4 0
41 LIN 363 Em* 01 00 00.79 -72 55 22.8 13.90 14.42 14.33   13.99 B8-9IIIe 16 0
42 2MASS J01002765-7322414 sg* 01 00 27.65 -73 22 41.4   14.47 16.11     A2Iab 4 0
43 LIN 369 Em* 01 00 42.6142345545 -72 24 57.273909063 14.25 15.37 15.34   15.17 B0-5(II) 7 0
44 OGLE SMC-SC9 61695 EB* 01 01 16.73 -72 46 06.7 15.91 16.51 16.72   16.64 B0-5(IV)e 4 0
45 2dFS 1558 * 01 01 18.8580891408 -73 51 05.312849501 16.89 17.44 17.54   17.67 B0-5(V)e 3 0
46 [MA93] 1305 Al* 01 02 10.0871859770 -72 23 55.530287390 14.96 15.34 15.39   15.25 (kA2mF5) 9 0
47 [MA93] 1312 Em* 01 02 18.8600107246 -72 17 40.407721538 14.07 15.26 15.22   15.28 O6-9 9 0
48 OGLE SMC111.7 58 cC* 01 02 56.5308042589 -73 25 02.033075737   14.54 16.247   15.510 A2Ib 7 0
49 LHA 115-S 36 Em* 01 03 00.0165271788 -72 25 39.419567021 12.69 13.73 13.73   13.62 B0e 18 0
50 OGLE SMC-SC9 175326 Be? 01 03 02.7499027316 -72 04 52.039883209   13.79 13.929   14.016 B1-2(II) 5 0
51 MOA J010321.3-720538 WU* 01 03 21.3006426753 -72 05 38.156822014 12.06 13.15 13.36   13.95 O6V+O4/5III(f) 20 0
52 OGLE SMC-SC10 24428 * 01 03 29.73 -72 17 55.7   14.87 14.95     O9III-V 10 0
53 OGLE SMC-SC9 136529 * 01 03 29.7482397906 -72 58 28.804484727 15.80 16.75 16.92   16.87 B0-5(IV)e? 3 0
54 OGLE SMC-SC10 68416 * 01 04 37.4569426859 -72 11 41.244600911 15.14 16.24 16.33   16.57 B0-5(IV) 3 0
55 V* SX Tuc cC* 01 04 40.0128930726 -72 19 10.819505724 15.78 16.61 15.68   15.63 A0(II) 11 0
56 AzV 387 El* 01 05 39.9412535527 -72 16 05.520237516 12.54 13.67 13.92   14.22 O9.5III 10 0
57 OGLE SMC-SC10 137842 * 01 05 46.2849277485 -72 06 51.171867222 13.54 14.64 14.75   14.71 B0(IV) 9 0
58 2dFS 2073 sg* 01 05 52.2313510683 -72 35 47.382224588   15.48 16.59     A3Iae 3 0
59 2dFS 2090 Al* 01 05 57.4703558196 -72 11 54.495627716   14.66 14.86   15.267 B0.5(V) 11 0
60 LHA 115-S 47 Em* 01 06 06.3114182027 -72 18 03.486035290 15.88 13.90 14.03   13.98 B1-2(II) 18 0
61 [MA93] 1585 Em* 01 06 26.8481332879 -72 16 59.823744706   16.14 16.2     B0-5(IV)e? 4 0
62 [MA93] 1613 Em* 01 07 05.9352621860 -73 04 47.991947455 16.09 16.79 16.86   16.87 B0-5(V) 4 0
63 OGLE SMC-ECL- 5252 Al* 01 07 21.4720120292 -72 12 27.134275346 13.45 14.43 14.73 14.70 15.01 B0.5(IV) 9 0
64 2dFS 2295 * 01 07 29.9097443594 -73 26 05.137139921 15.92 16.47 16.46   16.67 B0-5(V) 3 0
65 OGLE SMC-CEP-3977 cC* 01 07 44.6686065858 -73 11 24.362494062 17.33 17.11 16.94   16.23 A3Ib 7 0
66 OGLE SMC-ECL- 5325 Al* 01 07 55.9356884028 -73 33 42.658371136 16.11 15.90 15.46   14.95 F0 6 0
67 OGLE SMC-CEP-3996 cC* 01 07 57.6628613336 -73 18 32.087002310   16.25 17.003   16.496 A3II 8 0
68 2MASS J01075793-7232552 * 01 07 57.94 -72 32 55.3 15.06 15.14 14.88   14.64 A5II 4 0
69 LHA 115-S 54 Em* 01 08 25.8442344801 -72 23 27.316812490 12.72 13.99 13.89   13.82 B0(II)e 17 0
70 OGLE SMC-SC11 117302 El* 01 08 42.2774118294 -72 19 40.627729527 14.82 15.81 15.85 15.85 16.05 B0-5(IV) 8 0
71 2dFS 2460 * 01 08 44.60 -72 41 32.9   15.27       A3Ib 4 0
72 2dFS 2522 * 01 09 09.69 -73 27 00.7   16.30 16.60     B0-5(IV) 4 0
73 [MA93] 1694 Em* 01 09 21.9492113525 -73 15 41.915443488 13.93 14.87 15.10   15.01 O6.5II(f) 10 0
74 2dFS 2698 * 01 10 42.46 -73 19 37.1 14.80 15.57 15.75   15.86 B0-5(II) 3 0
75 SV* HV 2153 WU* 01 11 31.3524754530 -72 25 10.274929374 14.16 15.59 15.32   15.52 B1-5(III) 6 0
76 2dFS 2959 * 01 13 42.45 -72 38 01.5   16.41 16.62     B0-5(V) 3 0
77 LIN 508 Em* 01 14 55.0188144240 -72 21 38.102991103 13.26 14.41 14.3   14.25 O4-7Ve 16 0
78 2MASS J01153807-7229573 * 01 15 38.0829377264 -72 29 57.467589541 16.15 16.33 16.26   16.13 A0(II) 4 0
79 [MA93] 1832 Em* 01 16 44.8739923953 -73 18 27.688802183 15.57 16.46 16.51   16.46 B0-5(IV) 5 0
80 2dFS 3304 * 01 18 04.0978435028 -72 39 01.392762676 15.76 16.63 16.71   16.93 B0-5(V) 4 0
81 [MA93] 1860 Em* 01 18 53.9681627493 -73 09 38.339269771   14.27 14.4     O9.5III-V 9 0
82 [MA93] 1865 Em* 01 19 28.6497340838 -73 24 39.343761687   15.91 16.0     B0-5(III)e 5 0
83 [MA93] 1873 Em* 01 20 18.0309353003 -72 18 53.789320937   14.86 14.9     B0-5(II) 8 0
84 [MA93] 1887 Em* 01 21 28.9872877032 -72 45 16.888222498   15.05 15.7   15.898 B0-5(IV) 5 0
85 OGLE SMC-ECL- 6042 Al* 01 22 19.00 -72 30 41.3   16.34 16.633   16.781 B1-5(IV) 5 0
86 CPD-73 82 s*y 01 29 17.2669193650 -72 43 20.187235268   11.94 11.56     F0Iae 26 0
87 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5498 1
88 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14544 1
89 NAME Local Group GrG ~ ~           ~ 6802 0

    Equat.    Gal    SGal    Ecl

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2020.02.23-09:43:20

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