2009A&A...503..165Y


Query : 2009A&A...503..165Y

2009A&A...503..165Y - Astronomy and Astrophysics, volume 503, 165-176 (2009/8-3)

Close binary and other variable stars in the solar-age galactic open cluster M67.

YAKUT K., ZIMA W., KALOMENI B., VAN WINCKEL H., WAELKENS C., DE CAT P., BAUWENS E., VUCKOVIC M., SAESEN S., LE GUILLOU L., PARMAKSIZOGLU M., ULUC K., KHAMITOV I., RASKIN G. and AERTS C.

Abstract (from CDS):

We present multi-colour time-series CCD photometry of the solar-age galactic open cluster M67 (NGC 2682). About 3600 frames spread over 28 nights were obtained with the 1.5m Russian-Turkish and 1.2m Mercator telescopes. High-precision observations of the close binary stars AH Cnc, EV Cnc, ES Cnc, the δ Scuti type systems EX Cnc and EW Cnc, and some long-period variables belonging to M67 are presented. Three full multi-colour light curves of the overcontact binary AH Cnc were obtained during three observing seasons. Likewise we gathered three light curves of EV Cnc, an EB-type binary, and two light curves of ES Cnc, a blue straggler binary. Parts of the light change of long-term variables S1024, S1040, S1045, S1063, S1242, and S1264 are obtained. Period variation analysis of AH Cnc, EV Cnc, and ES Cnc were done using all times of mid-eclipse available in the literature and those obtained in this study. In addition, we analyzed multi-colour light curves of the close binaries and also determined new frequencies for the δ Scuti systems. The physical parameters of the close binary stars were determined with simultaneous solutions of multi-colour light and radial velocity curves. Finally we determined the distance of M67 as 857(33) pc via binary star parameters, which is consistent with an independent method from earlier studies.

Abstract Copyright:

Journal keyword(s): binaries: close - binaries: eclipsing - stars: oscillations - open clusters and associations: individual: M67

Simbad objects: 26

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Number of rows : 26
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 Cl* NGC 2682 SAND 1063 RS* 08 51 13.3549065744 +11 51 40.172654052 15.557 14.84 13.573   12.591 G8IV 50 0
2 NGC 2682 119 RS* 08 51 19.0167198768 +11 50 05.755781940 13.197 13.13 12.547 12.177 11.837 F9IV 71 0
3 Cl* NGC 2682 SAND 1082 EB* 08 51 20.7915 +11 53 26.168   11.66 11.150 11.09 10.722 F5IV 117 0
4 Cl* NGC 2682 ES IV-4 SB* 08 51 22.9141132320 +11 48 49.440178944 13.245 13.27 12.695   12.033 F7IV 42 1
5 NGC 2682 OpC 08 51 23 +11 48.8           ~ 2191 0
6 NGC 2682 143 SB* 08 51 23.7746734704 +11 49 49.338989364   12.39 11.420   10.61 G4III 84 0
7 Cl* NGC 2682 SAND 1113 RS* 08 51 25.3043953560 +12 02 56.494997844 15.299 14.78 13.736     ~ 50 0
8 NGC 2682 155 * 08 51 26.835672 +11 48 40.46904   11.10 10.51 10.38 9.917 G2 25 0
9 NGC 2682 156 BS* 08 51 27.0120114864 +11 51 52.582244112   11.1 10.940   10.862 A2V 69 0
10 V* EU Cnc CV* 08 51 27.1835851536 +11 46 56.996141700   21.93 21.75     ~ 37 0
11 Cl* NGC 2682 SAND 1036 EB* 08 51 28.1469477144 +11 49 27.495860592 13.262 13.27 12.809   12.184 F3 70 0
12 NGC 2682 173 RG* 08 51 30.4540403064 +11 48 58.324606164 13.834 13.12 11.731 11.594 11.08 ~ 35 0
13 NGC 2682 178 * 08 51 31.9171704744 +11 51 16.663779036 14.694 14.63 14.030 13.704 13.304 G0V 32 0
14 NGC 2682 180 * 08 51 32.1498326448 +11 50 03.644825496 13.328 13.26 12.655   11.979 F9V 29 0
15 Cl* NGC 2682 SAND 1280 dS* 08 51 32.5773312840 +11 50 40.634470500 12.537 12.52 12.269 12.121 11.922 F0 57 0
16 Cl* NGC 2682 SAND 1284 dS* 08 51 34.3150275672 +11 51 10.497400452   11.17 10.92   10.622 B9V 90 0
17 NGC 2682 195 SB* 08 51 36.0102891818 +11 46 33.602537041 13.539 13.4 12.682 12.328 11.915 G1V 50 0
18 Cl* NGC 2682 SAND 1282 EB* 08 51 37.8473566296 +11 50 57.092451072 13.964 13.89 13.333   12.634 F7V 153 0
19 NGC 2682 210 * 08 51 39.2311504440 +11 50 03.851908944 12.866 12.79 12.277   11.566 F8V 39 0
20 GSC 00814-01146 * 08 54 24.0377837352 +10 30 16.858393380   14.3   13.94   ~ 1 0
21 V* XY Leo EB* 10 01 40.4170488672 +17 24 32.602180644   10.66 9.68   8.474 K0V 269 0
22 V* RS CVn RS* 13 10 36.9077924448 +35 56 05.584994412 8.57 8.51 7.93 7.7   F6IV+G8IV 701 0
23 V* EW Cen LP? 13 37 42.6331749336 -52 22 09.441960384           ~ 6 0
24 V* TY Boo EB* 15 00 46.9394379816 +35 07 54.742318356   12.03 11.39 11.38   G3+G7 129 0
25 V* V839 Oph EB* 18 09 21.2653435464 +09 09 03.607091388   9.62 9.03   8.286 F8V 137 0
26 V* BB Peg EB* 22 22 56.8915406208 +16 19 27.861694716   11.69 11.17     F8V 112 0

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2022.08.08-02:58:08

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