2012AJ....144..186K

Query : 2012AJ....144..186K

2012AJ....144..186K - Astron. J., 144, 186 (2012/December-0)

Variable stars in Large Magellanic Cloud globular clusters. II. NGC 1786.

KUEHN C.A., SMITH H.A., CATELAN M., PRITZL B.J., DE LEE N. and BORISSOVA J.

Abstract (from CDS):

This is the second in a series of papers studying the variable stars in Large Magellanic Cloud globular clusters. The primary goal of this series is to study how RR Lyrae stars in Oosterhoff-intermediate systems compare to their counterparts in Oosterhoff I/II systems. In this paper, we present the results of our new time-series B-V photometric study of the globular cluster NGC 1786. A total of 65 variable stars were identified in our field of view. These variables include 53 RR Lyraes (27 RRab, 18 RRc, and 8 RRd), 3 classical Cepheids, 1 Type II Cepheid, 1 Anomalous Cepheid, 2 eclipsing binaries, 3 Delta Scuti/SX Phoenicis variables, and 2 variables of undetermined type. Photometric parameters for these variables are presented. We present physical properties for some of the RR Lyrae stars, derived from Fourier analysis of their light curves. We discuss several different indicators of Oosterhoff type which indicate that the Oosterhoff classification of NGC 1786 is not as clear cut as what is seen in most globular clusters.

Abstract Copyright: ∼

Journal keyword(s): Magellanic Clouds - stars: horizontal-branch - stars: variables: general - stars: variables: RR Lyrae

VizieR on-line data: <Available at CDS (J/AJ/144/186): table1.dat table2.dat table3.dat table4.dat>

Nomenclature: Tables 2-3: [G85b] NN (Nos 13-66) added.

Simbad objects: 70

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Number of rows : 70
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 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
2 NGC 1466 GlC 03 44 32.71 -71 40 18.0   11.6 11.59     ~ 166 0
3 2MASS J04585007-6745102 dS* 04 58 50.1005353200 -67 45 10.385530776   21.636 21.365     ~ 2 0
4 SV* DV 147 cC* 04 58 51.3215678832 -67 44 23.923399344   18.133 17.913   17.344 ~ 11 0
5 OGLE LMC-RRLYR-2626 RR* 04 58 52.6694260608 -67 43 53.986549764   19.442 19.262   18.778 ~ 5 0
6 OGLE LMC-RRLYR-2653 RR* 04 58 59.33 -67 44 32.2   19.806 19.571   18.978 ~ 4 0
7 [G85b] 34 EB* 04 58 59.3533994117 -67 42 38.393408011   19.754 19.514     ~ 2 0
8 OGLE LMC-RRLYR-2657 RR* 04 58 59.6219322936 -67 45 24.842772432   20.026 19.725   19.106 ~ 5 0
9 OGLE LMC-RRLYR-2658 RR* 04 58 59.70 -67 43 52.2   19.493 19.326   18.858 ~ 4 0
10 OGLE LMC-RRLYR-2661 RR* 04 59 00.4155918168 -67 44 40.450527888   19.956 19.515   18.874 ~ 7 0
11 OGLE LMC-RRLYR-2662 RR* 04 59 01.0909028640 -67 43 29.546265792   19.559 19.304   18.754 ~ 8 0
12 OGLE LMC-RRLYR-2667 RR* 04 59 01.4510982360 -67 45 21.762596556   19.624 19.373   18.828 ~ 6 0
13 OGLE LMC-RRLYR-2671 RR* 04 59 02.60 -67 44 38.5     19.409   18.600 ~ 4 0
14 OGLE LMC-RRLYR-2674 RR* 04 59 02.8831930087 -67 46 06.219761111   19.726 19.384   18.702 ~ 7 0
15 [G85b] 39 dS* 04 59 03.00 -67 45 36.2   21.044 20.699     ~ 1 0
16 OGLE LMC-RRLYR-2675 RR* 04 59 03.08 -67 44 54.1   18.898 18.619   18.262 ~ 4 0
17 OGLE LMC-RRLYR-2676 RR* 04 59 03.1375253240 -67 44 39.356047905   19.806 19.505   19.010 ~ 6 0
18 OGLE LMC-RRLYR-2678 RR* 04 59 04.0301814840 -67 44 50.934117228   20.036 19.767   19.028 ~ 5 0
19 OGLE LMC-RRLYR-2680 RR* 04 59 04.26 -67 44 35.7   19.322 18.805   17.918 ~ 5 0
20 OGLE LMC-RRLYR-2683 RR* 04 59 04.78 -67 44 24.8   19.030 18.607   18.454 ~ 5 0
21 OGLE LMC-RRLYR-2685 RR* 04 59 04.93 -67 44 49.2   19.185 18.714   18.152 ~ 4 0
22 OGLE LMC-RRLYR-2686 RR* 04 59 05.0864726712 -67 44 52.098516867   19.669 19.146   18.771 ~ 5 0
23 OGLE LMC-RRLYR-2688 RR* 04 59 05.54 -67 44 52.7         18.522 ~ 4 0
24 [G85b] 49 V* 04 59 05.70 -67 44 55.9   18.223 17.294     ~ 1 0
25 OGLE LMC-RRLYR-2692 RR* 04 59 05.92 -67 44 42.9     19.313   18.824 ~ 4 0
26 OGLE LMC-RRLYR-2693 RR* 04 59 06.02 -67 44 39.5     18.437   18.012 ~ 4 0
27 OGLE LMC124.8 5103 WV* 04 59 06.1479388054 -67 45 24.637202693   18.928 18.469   18.036 ~ 11 0
28 OGLE LMC-RRLYR-2697 RR* 04 59 06.24 -67 44 38.3   18.693 17.855   17.043 ~ 4 0
29 OGLE LMC-RRLYR-2698 RR* 04 59 06.2924315967 -67 44 56.693702741   20.444 19.383   19.312 ~ 5 0
30 OGLE LMC-RRLYR-2702 RR* 04 59 06.52 -67 44 41.9         18.113 ~ 4 0
31 OGLE LMC-ECL-4451 EB* 04 59 06.6931706997 -67 43 26.348907198   18.376 18.379 18.18 18.348 ~ 7 0
32 SV* HV 880 cC* 04 59 07.2817453248 -67 43 31.026407556   14.799 14.256   13.550 ~ 21 0
33 OGLE LMC-RRLYR-2706 RR* 04 59 07.31 -67 44 48.9         16.512 ~ 4 0
34 NGC 1786 Cl* 04 59 07.470 -67 44 45.44   10.1       ~ 152 0
35 OGLE LMC-RRLYR-2711 RR* 04 59 07.84 -67 44 52.4         17.143 ~ 4 0
36 OGLE LMC-RRLYR-2712 RR* 04 59 07.8915798576 -67 45 29.324732292   19.760 19.410   18.937 ~ 6 0
37 OGLE LMC-RRLYR-2714 RR* 04 59 07.91 -67 44 48.3         16.512 ~ 4 0
38 OGLE LMC-RRLYR-2724 RR* 04 59 08.86 -67 45 02.0   19.560 19.289   18.859 ~ 4 0
39 OGLE LMC-RRLYR-2725 RR* 04 59 08.87 -67 44 52.0   18.860 18.720   18.030 ~ 4 0
40 OGLE LMC532.26.000180 RR* 04 59 08.95 -67 44 39.6   18.500 17.761   16.315 ~ 3 0
41 OGLE LMC-RRLYR-2727 RR* 04 59 08.9942897424 -67 44 08.108003040   19.603 19.314   18.882 ~ 6 0
42 OGLE LMC-RRLYR-2728 RR* 04 59 09.0645210096 -67 46 15.147179580   19.584 19.378   18.872 ~ 5 0
43 OGLE LMC-RRLYR-2729 RR* 04 59 09.2853538847 -67 44 14.373881000   19.630 19.049   18.572 ~ 6 0
44 OGLE LMC-CEP-563 cC* 04 59 09.2910899664 -67 45 01.787077440   16.491 15.845   15.310 ~ 9 0
45 OGLE LMC-RRLYR-2730 RR* 04 59 09.37 -67 44 53.7   19.317 18.989   18.726 ~ 4 0
46 OGLE LMC-RRLYR-2732 RR* 04 59 09.40 -67 44 39.0     18.26   17.697 ~ 4 0
47 [G85b] 20 V* 04 59 09.40 -67 44 34.4   19.215       ~ 1 0
48 OGLE LMC-RRLYR-2733 RR* 04 59 09.53 -67 44 50.9         17.932 ~ 4 0
49 OGLE LMC-RRLYR-2737 RR* 04 59 10.02 -67 44 55.7   18.866 18.507   18.131 ~ 4 0
50 OGLE LMC-RRLYR-2738 RR* 04 59 10.1695897198 -67 44 27.269628308   19.564 19.435   18.496 ~ 5 0
51 OGLE LMC-RRLYR-2743 RR* 04 59 11.15 -67 44 17.5   18.955 18.784   18.894 ~ 4 0
52 OGLE LMC-RRLYR-2746 RR* 04 59 11.24 -67 44 17.3     20.412   18.772 ~ 4 0
53 OGLE LMC-RRLYR-2747 RR* 04 59 11.4890252976 -67 44 36.412873728   19.491 19.029   18.523 ~ 8 0
54 OGLE LMC532.26.001461 RR* 04 59 11.65 -67 44 46.8   19.502 19.217   18.891 ~ 3 0
55 OGLE LMC-RRLYR-2748 RR* 04 59 11.98 -67 43 52.6   19.661 19.723   18.847 ~ 4 0
56 OGLE LMC-RRLYR-2749 RR* 04 59 12.0556854624 -67 44 44.012420520   19.896 19.280   18.790 ~ 6 0
57 OGLE LMC-RRLYR-2750 RR* 04 59 12.22 -67 44 56.3   19.729 19.310   18.874 ~ 4 0
58 OGLE LMC-RRLYR-2757 RR* 04 59 12.5121863952 -67 44 15.047287584   19.571 19.332   18.871 ~ 7 0
59 OGLE LMC-RRLYR-2770 RR* 04 59 14.1817140305 -67 44 23.773791342   19.950 19.613   18.827 ~ 7 0
60 OGLE LMC-RRLYR-2771 RR* 04 59 14.1897434256 -67 43 46.247940912   19.523 18.979   18.672 ~ 4 0
61 OGLE LMC-RRLYR-2776 RR* 04 59 14.5793372184 -67 43 52.341255768   19.234 19.157   18.650 ~ 8 0
62 OGLE LMC-RRLYR-2777 RR* 04 59 14.8614312456 -67 44 21.385876956   19.608 19.429   18.960 ~ 7 0
63 OGLE LMC-RRLYR-2781 RR* 04 59 15.6459228648 -67 45 03.027368844   19.640 19.354   18.832 ~ 6 0
64 OGLE LMC-RRLYR-2802 RR* 04 59 21.2440609464 -67 46 06.936358044   19.438 19.119   18.478 ~ 7 0
65 OGLE LMC-RRLYR-2834 RR* 04 59 29.0153062140 -67 42 40.247936229   20.028 19.584   18.964 ~ 6 0
66 OGLE LMC-RRLYR-2855 RR* 04 59 34.7414521632 -67 42 46.934352216   19.373 19.120   18.663 ~ 7 0
67 OGLE LMC-RRLYR-2864 RR* 04 59 36.1001065488 -67 42 32.100259572   19.556 19.340   18.907 ~ 7 0
68 OGLE LMC-DSCT-400 dS* 04 59 39.42 -67 42 15.2   20.485 20.530   20.249 ~ 2 0
69 OGLE LMC-CEP-591 cC* 04 59 41.3225316816 -67 44 17.076220152   16.258 15.857   15.205 ~ 14 0
70 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0

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