2008MNRAS.391..343P

Query : 2008MNRAS.391..343P

2008MNRAS.391..343P - Mon. Not. R. Astron. Soc., 391, 343-353 (2008/November-3)

MOST satellite photometry of stars in the M67 field: eclipsing binaries, blue stragglers and δ Scuti variables.

PRIBULLA T., RUCINSKI S., MATTHEWS J.M., KALLINGER T., KUSCHNIG R., ROWE J.F., GUENTHER D.B., MOFFAT A.F.J., SASSELOV D., WALKER G.A.H. and WEISS W.W.

Abstract (from CDS):

We present two series of MOST (Microvariability and Oscillations of STars) space-based photometry, covering nearly continuously 10 d in 2004 and 30 d in 2007, of selected variable stars in the upper main sequence of the old open cluster M67. New high-precision light curves were obtained for the blue straggler binary/triple systems AH Cnc, ES Cnc and EV Cnc. The precision and phase coverage of ES Cnc and EV Cnc is by far superior to any previous observations. The light curve of ES Cnc is modelled in detail, assuming two dark photospheric spots and Roche geometry. An analysis of the light curve of AH Cnc indicates a low mass ratio (q ∼ 0.13) and a high inclination angle for this system. Two new long-period eclipsing binaries, GSC 814-323 and HD 75638 (non-members of M67) were discovered. We also present ground-based DDO spectroscopy of ES Cnc and of the newly found eclipsing binaries. Especially interesting is HD 75638, a member of a visual binary, which must itself be a triple or a higher multiplicity system. New light curves of two δ Scuti pulsators, EX Cnc and EW Cnc, have been analysed leading to detection of 26 and eight pulsation frequencies of high temporal stability.

Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): binaries: close - binaries: eclipsing - stars: variables: other

Simbad objects: 83

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Number of rows : 83
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 BD+12 1913 RG* 08 49 34.6572308376 +11 51 25.698205116   10.820 9.528     K2 63 0
2 Cl* NGC 2682 SAND 376 V* 08 49 43.4597206344 +11 48 38.732680440   10.99 10.594     ~ 12 0
3 BD+11 1920 RG* 08 49 50.1658664208 +11 25 33.183984648   11.06 10.081     ~ 18 0
4 HD 75373 * 08 49 55.2081365976 +11 15 10.290082464   9.42 8.512     G5 7 0
5 BD+12 1917 V* 08 49 56.8183190424 +11 41 32.987890788   11.2 9.782   8.540 K3III 78 1
6 Cl* NGC 2682 SAND 477 V* 08 50 00.5817251400 +11 43 57.854541648   11.78 10.895     ~ 20 0
7 BD+12 1918 V* 08 50 02.4034898592 +11 55 24.836631528   10.21 8.979     K0 10 0
8 BD+12 1919 V* 08 50 12.3013655424 +11 51 24.497893908   10.395 9.098 8.842   K5 80 0
9 BD+12 1920 HB* 08 50 18.2738243760 +11 55 21.204725232   10.994 9.909   8.890 ~ 48 0
10 BD+11 1923 SB* 08 50 18.6164987928 +11 24 28.246085784   9.93 8.821     K0 25 0
11 BD+11 1924 * 08 50 19.8859295304 +11 21 30.584786508   9.58 9.405     A5 15 0
12 TYC 816-2629-1 * 08 50 23.7087514128 +12 56 14.741650068   10.52 10.08     ~ 4 0
13 BD+13 1999 * 08 50 50.8282244520 +12 59 05.252396640   10.37 8.86     K5 10 0
14 NGC 2682 30 * 08 50 55.6925064870 +11 52 14.690654736   12.64 11.954   11.369 F9IV 55 0
15 Cl* NGC 2682 SAND 790 * 08 50 56.1702260256 +11 51 55.674589608 15.761 15.38 14.634   13.857 G7V 8 0
16 Cl* NGC 2682 ES I-26 * 08 51 02.0496199968 +11 45 19.117555344 16.060 15.73 14.982   14.162 G7V 33 0
17 NGC 2682 55 BS* 08 51 03.5144925000 +11 45 02.822542776   11.61 11.295   10.941 B9V 77 0
18 NGC 2682 81 BS* 08 51 11.7789373696 +11 45 22.123673277   9.96 10.024     B8V 114 0
19 NGC 2682 84 HB* 08 51 12.6931158192 +11 52 42.446745336   11.629 10.393 10.234 9.500 K1III 152 0
20 NGC 2682 90 BS* 08 51 14.3529693120 +11 45 00.540874080   11.43 10.819   10.544 ~ 51 0
21 NGC 2682 91 * 08 51 14.7601182624 +11 47 24.021041964 13.454 13.38 12.823   12.145 F8V 43 0
22 NGC 2682 95 SB* 08 51 15.4464408600 +11 47 31.475192784 13.211 13.17 12.680 12.355 12.044 F2 46 0
23 Cl* NGC 2682 ES I-227 SB* 08 51 16.8204754992 +11 45 41.703547932 15.122 14.87 14.221   13.346 G6V 31 0
24 NGC 2682 104 RG* 08 51 17.0400668664 +11 50 46.501856052   12.114 11.001 10.863 10.12 K0III/IV 97 0
25 NGC 2682 105 RG* 08 51 17.0998188072 +11 48 16.173832932   11.554 10.316 9.942 9.07 K2III 167 0
26 NGC 2682 106 V* 08 51 17.3469363072 +11 47 00.664213272 13.671 13.638 13.069   12.393 ~ 70 0
27 NGC 2682 107 * 08 51 17.3619831024 +11 46 03.237578256 14.600 14.50 14.001 13.564 13.204 G0V 33 0
28 NGC 2682 108 RG* 08 51 17.4855757728 +11 45 22.707921744   11.064 9.603 9.370 8.36 ~ 161 1
29 Cl* NGC 2682 SAND 986 SB* 08 51 17.9917758696 +11 45 54.232467732 13.363 13.28 12.733   12.04 ~ 84 0
30 Cl* NGC 2682 SAND 999 RS* 08 51 18.6870620808 +11 47 02.715891216 13.632 13.38 12.569 12.143 11.69 ~ 97 0
31 NGC 2682 124 BS* 08 51 19.9070240880 +11 47 00.441178944 12.576 12.59 12.117 11.848 11.564 F5IV 90 0
32 BD+12 1924 * 08 51 20.0988475776 +12 18 10.429733196 12.58 10.786 9.324 9.113   K2 59 0
33 NGC 2682 127 V* 08 51 20.1237509496 +11 46 41.751494436 13.336 13.32 12.776   12.08 ~ 97 0
34 NGC 2682 125 * 08 51 20.1572791392 +11 52 48.018858132 14.533 14.44 13.913   13.179 ~ 51 0
35 NGC 2682 128 * 08 51 20.3300020320 +11 45 52.481465496 13.782 13.72 13.244   12.445 ~ 75 0
36 NGC 2682 129 * 08 51 20.5508066664 +11 46 04.890109584 13.826 13.75 13.308   12.490 ~ 73 0
37 NGC 2682 130 BS* 08 51 20.5734927984 +11 46 16.412199564 13.346 13.34 12.950   12.30 G: 69 0
38 NGC 2682 131 SB* 08 51 20.794032 +11 53 26.13120   11.647 11.248 11.042 10.722 F5IV 128 0
39 NGC 2682 134 V* 08 51 21.2238774840 +11 45 52.751052612 12.903 12.83 12.315 11.904 11.553 F5 78 0
40 NGC 2682 135 RG* 08 51 21.5640702312 +11 46 06.216394188   12.53 11.394   10.39 K1III 122 0
41 NGC 2682 136 SB* 08 51 21.7535381400 +11 52 37.872333372   11.92 11.235   10.595 F8V 84 0
42 Cl* NGC 2682 ES IV-29 * 08 51 21.9419646528 +11 53 08.933780076   16.09 15.268   14.399 G8V 33 0
43 NGC 2682 140 Ro* 08 51 22.0511842656 +11 46 41.010219552 13.811 13.797 13.189 12.834 12.496 ~ 87 0
44 NGC 2682 141 HB* 08 51 22.8036640800 +11 48 01.779545736   11.570 10.346 10.180 9.40 K0IIIb 167 0
45 NGC 2682 OpC 08 51 23.5 +11 48 54           ~ 2528 0
46 NGC 2682 151 RG* 08 51 26.1833544456 +11 53 51.981683748   11.58 10.391     K1III 124 0
47 NGC 2682 153 BS* 08 51 26.4321697248 +11 43 50.738037528   11.41 11.269   11.101 A2V 95 0
48 NGC 2682 156 BS* 08 51 27.0120114864 +11 51 52.582244112   11.1 10.940   10.862 A2V 81 0
49 HD 75638 ** 08 51 27.314904 +12 07 40.51704           F0 31 0
50 Cl* NGC 2682 SAND 1036 EB* 08 51 28.1469477144 +11 49 27.495860592 13.262 13.27 12.809   12.184 F3 84 0
51 NGC 2682 164 RG* 08 51 28.9910274072 +11 50 33.127331784   11.675 10.441 10.250 9.46 K1III 162 0
52 BD+12 1926 RG* 08 51 29.9058258360 +11 47 16.870629444   11.004 9.555 9.360 8.36 K3III 155 0
53 NGC 2682 173 RG* 08 51 30.4540403064 +11 48 58.324606164 13.834 13.12 11.731 11.594 11.08 ~ 53 0
54 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 67 0
55 NGC 2682 185 BS* 08 51 32.5946133024 +11 48 52.103681712   11.46 11.48   10.80 A0V 75 0
56 Cl* NGC 2682 SAND 1284 BS* 08 51 34.3150275672 +11 51 10.497400452   11.17 10.92   10.622 B9V 106 0
57 NGC 2682 193 RG* 08 51 35.7789056016 +11 53 34.748492712 13.904 13.22 12.267   11.228 K0III 121 0
58 NGC 2682 200 * 08 51 37.1607693888 +11 59 02.503934952   11.95 10.915   10.248 G8 23 0
59 NGC 2682 202 SB* 08 51 37.4063219976 +11 50 05.308368936 13.268 13.15 12.608   11.874 F9IV 47 0
60 Cl* NGC 2682 SAND 1282 SB* 08 51 37.8473566296 +11 50 57.092451072 13.964 13.89 13.333   12.634 F7V 181 0
61 NGC 2682 210 * 08 51 39.2311504440 +11 50 03.851908944 12.866 12.79 12.277   11.566 F8V 51 0
62 Cl* NGC 2682 ES III-35 RG* 08 51 39.3860048856 +11 51 45.671254056 13.832 13.1 12.117   11.078 K0III 89 0
63 NGC 2682 218 RG* 08 51 42.3411424776 +11 50 07.677862008   12.71 11.48     K1III 84 0
64 NGC 2682 217 RG* 08 51 42.3635843520 +11 51 23.075134668   12.80 11.23     K1III 101 0
65 NGC 2682 224 RG* 08 51 43.5490441608 +11 44 26.477313396   11.894 10.686 10.460 9.660 K1III 116 0
66 NGC 2682 223 RG* 08 51 43.8874792752 +11 56 42.528745068   11.658 10.476   9.500 K1III 114 0
67 NGC 2682 231 RG* 08 51 45.0772293264 +11 47 45.971197080   12.57 11.468     K1III 127 0
68 NGC 2682 238 BS* 08 51 48.6395454552 +11 49 15.654839376   11.23 10.913     A1V 55 0
69 NGC 2682 241 * 08 51 49.1427101712 +11 49 43.607392284 13.385 13.31 12.759   12.025 F8IV 37 0
70 HD 75700 * 08 51 49.3544102736 +11 53 38.973240780   8.97 7.872     K0 36 0
71 NGC 2682 243 Pe* 08 51 49.9490514183 +11 49 31.199136660 13.331 13.23 12.675   11.913 F8 69 0
72 NGC 2682 244 RG* 08 51 50.2026472872 +11 46 06.919342284   11.72 10.700   9.820 G8III 104 0
73 Cl* NGC 2682 FBC 4354 * 08 51 50.7459751872 +11 53 22.595560980 18.822 17.808 16.672   15.381 ~ 16 0
74 NGC 2682 261 * 08 51 56.0039584272 +11 51 26.532969048   10.91 10.589   10.317 A3 28 0
75 NGC 2682 266 RG* 08 51 59.5227693496 +11 55 04.835590251   11.65 10.463   9.490 K1III 113 0
76 HD 75717 * 08 52 01.9308703128 +13 23 26.310545880   8.91 8.660     F2 4 0
77 BD+12 1928 RB? 08 52 02.6251882992 +12 25 54.209737488   11.181 9.993     K0 25 0
78 BD+12 1929 EB* 08 52 10.5423935712 +12 17 53.852958672   10.33 9.944     ~ 12 0
79 BD+12 1930 BS* 08 52 10.7435074328 +11 44 05.867673842   10.81 10.700     A1V 71 0
80 NGC 2682 286 HB* 08 52 18.5744408733 +11 44 26.374152806   11.541 10.382   9.430 K0III 101 0
81 HD 75784 PM* 08 52 23.9418283800 +13 14 00.366273276 9.740 8.840 7.850     G5 61 0
82 BD+13 2006 * 08 52 24.1244797536 +13 16 06.158566740   9.77 9.345     G5 3 0
83 V* AG Vir SB* 12 01 03.5040338736 +13 00 30.005824428   8.78 8.52     A5V 173 0

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