2018RAA....18...55X

Query : 2018RAA....18...55X

2018RAA....18...55X - Research in Astron. and astroph., 18, 55-55 (2018/May-0)

Investigations into the thermal non-equilibrium of W UMa-type contact binaries.

XIONG X., LIU L. and QIAN S.-B.

Abstract (from CDS):

Traditionally, some physical details (e.g., magnetic braking, energy transfer, angular momentum loss, etc.) have to be taken into consideration during investigations into the evolution of contact binaries. However, the real evolutionary processes which usually contain several of these physical mechanisms are very complicated as a result of strong interaction between components. To avoid dealing with these factors, a linear relationship is applied to the temperatures of components. It is found that the higher the mass ratio (M2/M1) of a contact system, the weaker the deviation from thermal equilibrium. On this basis, a variation trend of fill-out factor (f) changing with mass ratio can be inferred, which is consistent with observations. Moreover, if we stick to this point of view, it should be natural that the number of semi-detached binaries in the predicted broken-contact phase of relaxation oscillations is less than the number in the contact phase.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: close - stars: binaries: eclipsing - stars: evolution

Simbad objects: 122

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Number of rows : 122
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* BH Cas EB* 00 21 21.3765836256 +59 09 05.416013484   13.26 12.77     K4V 61 0
3 V* DZ Psc SB* 00 36 27.9388593960 +21 32 14.535908016   11.64 11.08 10.554 10.255 F7V 73 0
4 V* V523 Cas SB* 00 40 06.2679105096 +50 14 15.518292216   11.698 10.62 9.969 9.388 K4V 174 0
5 V* AQ Psc SB* 01 21 03.5556667632 +07 36 21.617815572   9.20 8.69   8.053 F5/8V 83 0
6 V* EP And EB* 01 42 29.3387367144 +44 45 42.452248608   11.81 11.40 11.562 11.223 F8V 66 0
7 V* V776 Cas SB* 01 53 23.4353019768 +70 02 33.441869868   9.47 9.03     F0 83 0
8 V* QX And SB* 01 57 57.7816919821 +37 48 22.453231805   11.736 11.25 11.23 10.68 F5 126 0
9 V* BO Ari EB* 02 12 08.7727135704 +27 08 18.231145548   10.55 10.02 9.73 9.256 F5 40 0
10 V* GZ And SB* 02 12 14.0689443192 +44 39 36.208111572   12.23 11.10     G5V 83 0
11 V* V376 And SB* 02 35 11.6313752232 +49 51 37.210388004   8.02 7.77     A4V 64 0
12 V* UX Eri SB* 03 09 52.7437496400 -06 53 33.511004988   11.61 10.97 10.128 9.8 F9V 109 0
13 BD+17 579A SB* 03 34 58.5443892288 +17 42 38.054792700   11.07 10.14 9.65 8.940 G0V 35 0
14 V* AH Tau EB* 03 47 11.9661390480 +25 06 59.375707992   11.59 11.07 11.09 10.436 G1p 83 0
15 V* EQ Tau SB* 03 48 13.4355167856 +22 18 50.924168856   12.04 11.18 10.082 9.706 G2V 129 0
16 BD+12 511 SB* 03 49 27.7666168464 +12 54 43.844508468   10.30 9.64     F8V 80 1
17 V* AO Cam SB* 04 28 13.6471014456 +53 02 44.463885216   11.23 10.51 9.071 8.674 G0V 105 0
18 V* IK Per EB* 04 29 27.4573781040 +42 03 10.585181376   12.17 11.49     A2 59 0
19 V* RZ Tau SB* 04 36 37.6613713272 +18 45 17.792668224   10.79 10.19 9.706 9.318 F5 157 0
20 V* DN Cam SB* 04 42 46.2425712000 +72 58 41.875923000   8.68 8.34     F0 73 0
21 V* V592 Per SB* 04 44 32.9934610464 +39 52 31.750044528   8.86 8.36     F2 58 0
22 HD 280332A SB* 05 01 10.8328702632 +34 30 26.555760288   10.94 10.34     ~ 110 0
23 HD 280332 ** 05 01 10.83934 +34 30 26.5819   10.901 10.215 10.047 9.305 G0 97 0
24 V* V402 Aur SB* 05 02 14.7412938168 +31 15 49.292827020 9.480 9.350 8.910     F0 67 0
25 V* ER Ori SB* 05 11 14.5056264672 -08 33 24.613510680   10.02 9.46 8.927 8.604 F7/8V 187 0
26 V* RW Dor SB* 05 18 32.5451452896 -68 13 32.777997600   11.85 11.16 8.66 10.111 G4/5V 100 0
27 V* AH Aur SB* 06 26 04.9301455152 +27 59 56.448934440   10.84 10.24 9.846 9.532 F7V 93 0
28 V* V396 Mon EB* 06 38 36.4832406072 +03 36 17.152913808   13.175 12.60 12.231 11.871 ~ 62 0
29 NSVS 7178717 EB* 06 45 01.2244405485 +34 21 54.651662131   15.298 14.11     K4-5 22 0
30 V* QW Gem SB* 06 50 46.0629271056 +29 27 11.324080584   11.30 10.78 9.887 9.441 G0 60 0
31 V* TY Pup SB* 07 32 46.2312711840 -20 47 31.079711112   8.99 8.60     F3V 99 0
32 1SWASP J075102.16+342405.3 EB* 07 51 02.1521159496 +34 24 05.841147996     14.01     ~ 16 0
33 V* FG Hya SB* 08 27 03.9412969584 +03 30 52.329583548   10.62 10.04 9.544 9.401 G0 213 0
34 V* TX Cnc SB* 08 40 01.7039106928 +18 59 59.421095623   10.71 9.97 9.88 9.339 G0-G1V 254 0
35 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
36 V* UV Lyn SB* 09 03 24.1259135160 +38 05 54.597192072   10.23 9.56 9.052 8.738 G3V 119 0
37 V* EZ Hya SB* 09 26 41.0604555912 -13 45 06.403376232   11.39 10.56 10.022 9.842 G2 68 0
38 V* AA UMa SB* 09 46 59.2849171056 +45 45 56.388568680   11.527 11.71 10.516 10.185 G0 89 0
39 V* RT LMi SB* 09 49 48.3190999536 +34 27 15.423647004   12.11 11.35 11.084 10.781 F7V 79 0
40 V* FO Hya SB* 09 59 43.2866383416 -19 07 56.213274036   11.31 11.05 10.993   ~ 23 0
41 V* XY Leo ** 10 01 40.4170488672 +17 24 32.602180644   10.66 9.68 8.855 8.474 K0V 287 0
42 V* XZ Leo SB* 10 02 34.1959390656 +17 02 47.140374840   10.79 10.37 10.385 10.173 A8/F0V 108 0
43 V* Y Sex SB* 10 02 47.9625666528 +01 05 40.327404108   10.38 9.95 9.875 8.471 F3/5V 122 0
44 V* ET Leo SB* 10 33 25.7877702072 +17 34 27.433589232   10.21 9.558 9.128 8.734 G5 69 0
45 V* UZ Leo SB* 10 40 33.1849763352 +13 34 00.854970636   10.13 9.75 9.357 9.14 A9/F1V 146 0
46 V* EX Leo SB* 10 45 06.7719534456 +16 20 15.677118528   8.73 8.242   7.633 F5 71 0
47 V* VY Sex SB* 10 50 29.7198219744 -02 41 43.074331944   9.60 9.01 8.639 8.349 G2V 52 0
48 V* AM Leo SB* 11 02 10.8846331272 +09 53 42.657520560   9.86 9.33 8.895 8.417 F5V 200 0
49 HD 95660 SB* 11 02 51.9104777040 +30 24 54.702250596   8.43 8.06     F5V 99 1
50 V* AP Leo SB* 11 05 05.0213426040 +05 09 06.404796468   10.07 9.57 8.971 8.849 F8V 130 0
51 V* HN UMa SB* 11 15 56.3765228400 +37 38 35.303807328   10.33 9.83 9.574 9.29 F8 51 0
52 V* AW UMa SB* 11 30 04.3160006304 +29 57 52.674404544   7.27   6.7   F0 302 0
53 V* TV Mus EB* 11 39 57.7633052952 -64 48 59.229170568   11.48 10.75   9.712 F2 76 0
54 V* V752 Cen SB* 11 42 48.0813368784 -35 48 57.505663584   9.88 9.30 9.697   F7/G0(V) 88 0
55 V* BL Leo EB* 11 45 38.3941095960 +24 46 50.731501548     13.51     ~ 36 0
56 HD 103576 * 11 55 38.0372183472 +47 15 26.635878216   8.92 8.65     A3 50 0
57 V* CC Com SB* 12 12 06.0378799056 +22 31 58.682832024   13.09 11.42 10.543 10.085 K4/5V 228 0
58 HD 106400 SB* 12 14 20.9962522128 +11 49 09.387358680   10.05 9.318 9.37 8.390 G8V 232 0
59 V* RW Com SB* 12 33 00.2840199504 +26 42 58.361790816   12.33 11.682 10.929 9.977 G8e 169 0
60 V* RZ Com SB* 12 35 05.0595351864 +23 20 14.027775864   11.09 10.57 10.082 9.77 G0Vn 202 0
61 V* SX Crv SB* 12 40 15.0427768512 -18 48 00.941011128   9.56 9.108 8.719 8.412 F7V 106 0
62 V* BI CVn SB* 13 03 16.4093237568 +36 37 00.640627644   10.99 10.31 9.908 9.593 F9V 102 0
63 HD 119931A EB* 13 46 06.7580872776 +05 06 56.197473948   8.44 7.82     F8V 177 0
64 HD 119931 ** 13 46 06.7604502 +05 06 56.161493   8.92 8.54 8.03   G0 176 0
65 V* XY Boo SB* 13 49 11.5666861776 +20 11 24.590393088   10.71 10.54 9.994 9.698 F5V 154 0
66 V* DN Boo EB* 13 51 42.0429638472 +14 18 05.946653340   11.78 11.34     G0 37 0
67 NSVS 925605 EB* 14 01 46.3800746832 +77 16 38.465385492   15.90 14.24 13.89   ~ 12 0
68 V* RR Cen SB* 14 16 57.2208600552 -57 51 15.656888844 7.70 7.65 7.29     A9/F0V 160 0
69 V* DU Boo SB* 14 22 17.7169434816 +41 27 02.152077336   8.97 8.69     A7V 58 0
70 V* EF Boo SB* 14 32 30.5385584160 +50 49 40.686842280 9.960 9.950 9.450 9.14 8.817 G5 85 0
71 V* CK Boo SB* 14 35 03.7596377832 +09 06 49.373523360   9.61 9.029 8.683 8.414 F7/8V 150 0
72 V* GR Vir SB* 14 45 20.2632619872 -06 44 04.131471300   8.54 8.00   7.34 G2/3V 151 0
73 V* GN Boo EB* 14 50 07.7647752840 +29 38 58.547306328   12.04 11.12 10.308 9.876 ~ 53 0
74 V* TZ Boo SB* 15 08 09.1351483800 +39 58 12.863284788   11.033 10.41 10.04 9.671 G2Vn 221 0
75 V* BW Dra SB* 15 11 50.0991906240 +61 51 41.228357940   9.39   8.3   B0 138 0
76 V* BV Dra SB* 15 11 50.3592224256 +61 51 25.281751464   8.54   7.7   F9V+F8V 162 2
77 V* FI Boo SB* 15 22 05.9658394344 +51 10 55.308179280   10.16 9.49 9.196 8.832 G5 68 0
78 V* OU Ser SB* 15 22 43.4747590291 +16 15 40.733742473   8.84 8.266 7.8 7.494 G1 99 0
79 V* VZ Lib SB* 15 31 51.7540131648 -15 41 10.170484188   11.04 10.27 9.742 9.356 G0V 70 0
80 V* FU Dra SB* 15 34 45.2133432432 +62 16 44.333175900   11.16 10.55 10.182 9.817 G0: 145 1
81 V* FP Boo SB* 15 43 00.2512236000 +43 15 55.315194516   10.53 10.14     A7III 67 0
82 V* YY CrB SB* 15 50 32.4342127104 +37 50 07.554679692   9.28 8.69     F8 114 0
83 V* AU Ser SB* 15 56 49.4686990368 +22 16 01.590650328   11.76 11.04 10.383 9.931 G4V 111 0
84 1SWASP J155822.10-025604.8 EB* 15 58 22.0970365128 -02 56 04.862017716   14.870 13.87     ~ 17 0
85 ATO J239.6170-02.9649 EB* 15 58 28.0808393664 -02 57 53.574679728   16.02 15.02 15.39   ~ 17 0
86 V* V842 Her SB* 16 06 02.2124477136 +50 11 13.104375288   10.523 9.979 9.488 9.163 G2 89 0
87 V* BX Dra SB* 16 06 17.3670263496 +62 45 46.089820800   11.00 10.62     kA9hF1.5 73 0
88 BD+07 3142 SB* 16 20 03.2129753256 +07 07 28.690441176   10.85 9.870 9.711 8.820 G9V 27 0
89 V* V899 Her SB* 16 35 01.9577567928 +33 12 47.767744404   8.33 7.88     F8 65 0
90 V* V921 Her SB* 16 49 31.2401052480 +47 06 28.806437772   9.80 9.50 9.246 9.049 A5 75 0
91 V* V829 Her SB* 16 55 47.8798895112 +35 10 57.592287012   10.96 10.33 10.12 9.372 G2V 79 0
92 V* V2357 Oph SB* 16 57 16.7622100968 +10 59 51.395498736   11.38 10.48 10.25 9.879 G5V 57 0
93 V* AK Her SB* 17 13 57.8236051704 +16 21 00.618202044   9.04 8.51   7.874 F4V 271 0
94 V* V728 Her EB* 17 18 04.2960486792 +41 50 38.707746684   11.25 10.61 10.658 10.416 F0 93 0
95 V* GM Dra SB* 17 20 21.8832019536 +57 58 27.057071532   9.30 8.77     F8 70 0
96 V* V2388 Oph SB* 17 54 14.1665728728 +11 07 49.770939000   6.72   6.0   F5Vn 133 0
97 V* V508 Oph SB* 17 58 48.6178267440 +13 29 46.283287668   11.25 10.65 9.652 9.269 G5 117 0
98 GSC 04433-01802 EB* 18 05 30.406392 +69 45 15.54228   10.92 10.34 10.128 9.804 F8/9V 89 0
99 TYC 4433-1802-1 SB* 18 05 30.4690230504 +69 45 15.750890424   11.35 10.86     ~ 93 0
100 V* V870 Ara SB* 18 08 22.6749490488 -56 46 01.800121404   9.65 8.96     F7/G0 66 0
101 V* V839 Oph SB* 18 09 21.2653435464 +09 09 03.607091388   9.62 9.03   8.286 F7V 147 0
102 V* V2612 Oph SB* 18 29 13.0163006016 +06 47 13.742328588   10.127 9.55 9.06 8.844 F7V 50 1
103 HD 171848 SB* 18 33 24.3606131184 +58 42 23.347863108   9.30 9.01     F8 44 0
104 * eps CrA SB* 18 58 43.3827144528 -37 06 26.380732536   5.24 4.85     F4VFe-0.8+ 224 0
105 V* V1918 Cyg EB* 19 26 08.6642294424 +52 26 47.592886452   11.34 10.76 10.322 10.06 ~ 43 0
106 V* V417 Aql SB* 19 35 24.1195136928 +05 50 17.661574140   11.23 10.63 10.629 10.276 G0V+F9V 131 0
107 V* OO Aql SB* 19 48 12.6525764880 +09 18 32.374957356   10.26 9.49 8.773 8.762 F9V 239 0
108 V* V1191 Cyg SB* 20 16 50.8171109208 +41 57 41.257475856   11.41 10.99 10.474 10.128 F6V 94 0
109 V* VW Cep SB* 20 37 21.6316723003 +75 36 01.894463230   8.13   7.0   G8V+K0V 561 0
110 V* MW Pav SB* 20 46 27.7481505168 -71 56 58.466402412   9.15 8.79     F3IV/V 83 0
111 HD 202924 SB* 21 18 10.8806281512 +30 35 21.597716292   8.33 8.11     A0 52 0
112 V* V1073 Cyg SB* 21 25 00.3578881488 +33 41 14.938809648   8.78 8.38     A1VpSi: 153 0
113 CRTS J212808.8+151622 EB* 21 28 08.8584368496 +15 16 21.937443456   16.108 14.49     ~ 25 0
114 V* DK Cyg SB* 21 35 02.6693386896 +34 35 45.395481192   10.98 10.56 10.154 9.914 A6V 149 0
115 V* BX Peg EB* 21 38 49.3910800824 +26 41 34.213405092     10.890     G4.5 142 0
116 V* BB Peg SB* 22 22 56.8915406208 +16 19 27.861694716   11.69 11.17     F8V 124 0
117 HD 216598 SB* 22 53 41.6540031672 +37 56 18.607477416   9.65 8.91     K0Vv 380 0
118 V* AB And SB* 23 11 32.0859315024 +36 53 35.108950344   10.62 9.50 9.009 8.585 G5+G5V 276 0
119 V* VZ Psc EB* 23 27 48.3881626645 +04 51 23.937175287   11.347 10.274 10.090 8.926 K4/5V 125 0
120 V* V357 Peg SB* 23 45 35.0650608720 +25 28 18.942348936   9.41 9.05 8.812 8.605 F2V 54 0
121 V* DX Tuc SB* 23 57 21.5215738872 -64 14 35.619975096   10.13 9.60 9.28 9.144 F6/8IV/V 44 0
122 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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