2001AJ....122..425Y

Query : 2001AJ....122..425Y

2001AJ....122..425Y - Astron. J., 122, 425-431 (2001/July-0)

A CCD photometric study of the contact binary V396 Monocerotis.

YANG Y. and LIU Q.

Abstract (from CDS):

Complete BV light curves of the W Ursae Majoris binary V396 Mon are presented. The present CCD photometric observations reveal that the light curves of the system are obviously asymmetric, with the primary maximum brighter than the secondary maximum (the ``O'Connell effect''). The light curves are analyzed by means of the latest version of the Wilson-Devinney code. The results show that V396 Mon is a W-subtype W UMa contact binary with a mass ratio of 0.402. The asymmetry of the light curves is explained by a cool spot on the secondary component. The nature of the overluminosity of the secondary of a W UMa-type system is analyzed. It is shown that the overluminosity of the secondary is clearly related to the mass of the primary and that, for a W UMa system, the higher the mass of the primary, the greater the overluminosity of the secondary. In addition, the overluminosity of the secondary is also related to its own density: the lower the density of the secondary, the greater its overluminosity.

Abstract Copyright: ∼

Journal keyword(s): Stars: Binaries: Eclipsing - Stars: Spots

Simbad objects: 78

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Number of rows : 78
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 V* AQ Tuc SB* 00 17 21.5137561416 -71 54 56.847230100   10.44 10.12     F3/5(+A) 85 0
2 V* V523 Cas SB* 00 40 06.2679105096 +50 14 15.518292216   11.698 10.62 9.969 9.388 K4V 174 0
3 V* CW Cas EB* 00 45 52.7049284568 +63 05 08.456733852   12.10 11.31 10.522 10.056 G8V 105 0
4 V* AD Phe SB* 01 16 38.0703906768 -39 42 31.330964628   11.06 10.47     F9/G0V 55 0
5 V* AE Phe SB* 01 32 32.9320741344 -49 31 41.289934908   8.75 8.15     G4V 135 0
6 V* GW Cep EB* 01 45 58.6227384192 +80 04 55.327969128   11.72 11.21 11.025 10.656 G3 69 0
7 V* TW Cet SB* 01 48 54.1434789696 -20 53 34.591679268   11.25 10.61 10 9.787 G1V 105 0
8 V* VY Cet EB* 01 49 33.6929873856 -19 37 29.231904252   12.09 11.48 11.006 10.323 ~ 38 0
9 V* SS Ari EB* 02 04 18.4072364136 +24 00 02.294819532   11.00 10.15 9.991 9.644 G0 121 0
10 HD 23161 * 03 42 46.5697483920 -02 21 38.665243188   9.780 9.36     F2V 20 0
11 V* V624 Tau dS* 03 43 43.2412431936 +24 22 28.445642868   8.49 8.22     A7III 140 0
12 V* V969 Tau BY* 03 45 42.1185203606 +24 54 21.622880032   10.18 9.56   8.82 G3 145 1
13 HD 23731 * 03 48 18.9368462136 +26 35 21.015884328   9.13 7.98     K2 14 0
14 V* YY Eri SB* 04 12 08.8493445840 -10 28 09.993826452   9.08 8.41   7.673 G3V 226 0
15 V* SY Hor SB* 04 14 18.3595292808 -46 26 57.109738308   11.96 11.36 11.114 10.251 ~ 31 0
16 V* AO Cam SB* 04 28 13.6471014456 +53 02 44.463885216   11.23 10.51 9.071 8.674 G0V 105 0
17 V* RZ Tau SB* 04 36 37.6613713272 +18 45 17.792668224   10.79 10.19 9.706 9.318 F5 157 0
18 V* UZ Oct EB* 04 43 35.9677526712 -84 48 39.999528900   9.72 9.21     ~ 43 0
19 V* ER Ori SB* 05 11 14.5056264672 -08 33 24.613510680   10.02 9.46 8.927 8.604 F7/8V 187 0
20 V* RS Col SB* 05 15 31.2443106552 -28 45 02.128147740   10.27 9.67     ~ 52 0
21 V* RW Dor SB* 05 18 32.5451452896 -68 13 32.777997600   11.85 11.16 8.66 10.111 G4/5V 100 0
22 V* TY Men EB* 05 26 49.7258473752 -81 35 07.209792348   8.51 8.26   7.913 A3/4V 73 0
23 V* V396 Mon EB* 06 38 36.4832406072 +03 36 17.152913808   13.175 12.60 12.231 11.871 ~ 62 0
24 V* TY Pup SB* 07 32 46.2312711840 -20 47 31.079711112   8.99 8.60     F3V 99 0
25 V* FG Hya SB* 08 27 03.9412969584 +03 30 52.329583548   10.62 10.04 9.544 9.401 G0 213 0
26 V* TX Cnc SB* 08 40 01.7039106928 +18 59 59.421095623   10.71 9.97 9.88 9.339 G0-G1V 254 0
27 V* BU Vel EB* 08 40 06.2923228752 -42 49 43.380938352   11.08 10.78     F0 38 0
28 V* AD Cnc EB* 08 46 20.1002153904 +10 20 07.362523896   13.80 13.06     K0V 98 0
29 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
30 V* DF Hya SB* 08 55 02.2431702408 +06 05 37.584542040   11.45 10.80 10.621 10.27 G0 69 0
31 V* UV Lyn SB* 09 03 24.1259135160 +38 05 54.597192072   10.23 9.56 9.052 8.738 G3V 119 0
32 V* S Ant SB* 09 32 18.3864862656 -28 37 39.968512032   6.77 6.45     F3V 144 0
33 V* W UMa SB* 09 43 45.4704536952 +55 57 09.061630668   8.54 7.75     G2Vn 686 0
34 V* AA UMa SB* 09 46 59.2849171056 +45 45 56.388568680   11.527 11.71 10.516 10.185 G0 89 0
35 V* RT LMi SB* 09 49 48.3190999536 +34 27 15.423647004   12.11 11.35 11.084 10.781 F7V 79 0
36 V* XY Leo ** 10 01 40.4170488672 +17 24 32.602180644   10.66 9.68 8.855 8.474 K0V 287 0
37 V* XZ Leo SB* 10 02 34.1959390656 +17 02 47.140374840   10.79 10.37 10.385 10.173 A8/F0V 108 0
38 V* AM Leo SB* 11 02 10.8846331272 +09 53 42.657520560   9.86 9.33 8.895 8.417 F5V 200 0
39 V* AW UMa SB* 11 30 04.3160006304 +29 57 52.674404544   7.27   6.7   F0 302 0
40 V* TV Mus EB* 11 39 57.7633052952 -64 48 59.229170568   11.48 10.75   9.712 F2 76 0
41 V* V752 Cen SB* 11 42 48.0813368784 -35 48 57.505663584   9.88 9.30 9.697   F7/G0(V) 88 0
42 V* CE Leo EB* 11 44 24.2554757472 +23 21 22.849119288   12.602 12.39 11.27 10.798 K 93 0
43 V* EH Hya EB* 12 04 50.9661741216 -33 09 22.467813912     14.33     ~ 22 0
44 V* W Crv SB* 12 07 34.3580942256 -13 08 59.009877636   11.95 11.28 10.67 10.214 ~ 76 0
45 V* TY UMa EB* 12 09 02.4999248256 +56 01 53.953604256   12.42 11.59 11.121 10.797 G1 93 0
46 V* CC Com SB* 12 12 06.0378799056 +22 31 58.682832024   13.09 11.42 10.543 10.085 K4/5V 228 0
47 HD 106400 SB* 12 14 20.9962522128 +11 49 09.387358680   10.05 9.318 9.37 8.390 G8V 232 0
48 V* RW Com SB* 12 33 00.2840199504 +26 42 58.361790816   12.33 11.682 10.929 9.977 G8e 169 0
49 V* RZ Com SB* 12 35 05.0595351864 +23 20 14.027775864   11.09 10.57 10.082 9.77 G0Vn 202 0
50 V* BI CVn SB* 13 03 16.4093237568 +36 37 00.640627644   10.99 10.31 9.908 9.593 F9V 102 0
51 V* XY Boo SB* 13 49 11.5666861776 +20 11 24.590393088   10.71 10.54 9.994 9.698 F5V 154 0
52 HD 120734 SB* 13 51 55.7388492384 -36 37 24.836269800   9.13 8.54   7.771 G0V+G0V 87 0
53 V* RR Cen SB* 14 16 57.2208600552 -57 51 15.656888844 7.70 7.65 7.29     A9/F0V 160 0
54 V* V677 Cen EB* 14 42 34.6426534848 -40 27 16.019883288   11.47 10.85   10.00 ~ 28 0
55 V* TY Boo EB* 15 00 46.9394379816 +35 07 54.742318356   12.03 11.39 10.398 10.006 G3+G7 139 0
56 * i Boo ** 15 03 47.29565 +47 39 14.6228           G0Vn 565 1
57 V* BW Dra SB* 15 11 50.0991906240 +61 51 41.228357940   9.39   8.3   B0 138 0
58 V* BV Dra SB* 15 11 50.3592224256 +61 51 25.281751464   8.54   7.7   F9V+F8V 162 2
59 V* AU Ser SB* 15 56 49.4686990368 +22 16 01.590650328   11.76 11.04 10.383 9.931 G4V 111 0
60 V* V502 Oph SB* 16 41 20.8608649992 +00 30 27.384298488   9.15 8.50   7.865 G2V+F9V 196 0
61 V* AK Her SB* 17 13 57.8236051704 +16 21 00.618202044   9.04 8.51   7.874 F4V 271 0
62 V* V535 Ara SB* 17 38 05.5503915840 -56 49 17.289502860   7.69 7.36     A8V 107 0
63 V* V566 Oph SB* 17 56 52.4103516432 +04 59 15.326210328   8.03 7.58     F5V 262 0
64 V* V508 Oph SB* 17 58 48.6178267440 +13 29 46.283287668   11.25 10.65 9.652 9.269 G5 117 0
65 V* FS CrA EB* 18 06 12.1976558568 -37 31 29.638682040           ~ 19 0
66 V* FG Sct EB* 18 45 03.6523226328 -06 06 15.512600268   14.813 13.714 12.627   ~ 32 0
67 * eps CrA SB* 18 58 43.3827144528 -37 06 26.380732536   5.24 4.85     F4VFe-0.8+ 224 0
68 V* OO Aql SB* 19 48 12.6525764880 +09 18 32.374957356   10.26 9.49 8.773 8.762 F9V 239 0
69 V* MW Pav SB* 20 46 27.7481505168 -71 56 58.466402412   9.15 8.79     F3IV/V 83 0
70 V* BI Vul EB* 21 22 48.0350619264 +27 01 39.846690516           ~ 56 0
71 V* DK Cyg SB* 21 35 02.6693386896 +34 35 45.395481192   10.98 10.56 10.154 9.914 A6V 149 0
72 V* BX Peg EB* 21 38 49.3910800824 +26 41 34.213405092     10.890     G4.5 142 0
73 V* RW PsA EB* 22 09 46.9301030376 -27 04 01.524226476   11.93 11.16     ~ 40 0
74 V* BB Peg SB* 22 22 56.8915406208 +16 19 27.861694716   11.69 11.17     F8V 124 0
75 V* EM Lac EB* 22 23 54.7818645024 +54 01 09.271578684   13.088 12.50 12.105 11.7 ~ 44 0
76 HD 216598 SB* 22 53 41.6540031672 +37 56 18.607477416   9.65 8.91     K0Vv 380 0
77 V* AB And SB* 23 11 32.0859315024 +36 53 35.108950344   10.62 9.50 9.009 8.585 G5+G5V 276 0
78 V* U Peg SB* 23 57 58.4766636672 +15 57 10.087001640   10.26 9.63 8.871 8.970 G2V 252 0

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