1998A&A...335..179P

Query : 1998A&A...335..179P

1998A&A...335..179P - Astronomy and Astrophysics, volume 335, 179-182 (1998/7-1)

Orbital circularization in detached binaries with early-type primaries.

PAN K., TAN H. and SHAN H.

Abstract (from CDS):

Extending our previous study, the present paper reports on the discussion of the orbital circularization in 37 detached binaries with early-type primaries. From comparison of the theoretical predictions with the orbital eccentricities of our binary systems, we find that Zahn's circularization theories are substantially consistent with the observed data for overwhelming majority of our samples. However, we also note that three binaries of whom both components are asynchronized rotators possess circular orbits. How to understand the circularism of the three systems remains a problem not only to Zahn's theories, but to all other present circularization mechanisms.We think that studies on the circularization of pre-main-sequence binary systems could provide some clues for the problem.

Abstract Copyright: ∼

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

Simbad objects: 37

goto View the references in ADS

Number of rows : 37
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 * 21 Cas EB* 00 45 39.0765692400 +74 59 17.054172672   5.717 5.652     A2IV 212 0
2 * eta Ori bC* 05 24 28.61672 -02 23 49.7311 2.25 3.18 3.35 3.44 3.65 B1V+B2: 398 0
3 V* VV Ori EB* 05 33 31.4464933704 -01 09 21.859452468 4.26 5.16 5.34 5.39 5.59 B1V+B4.5V 259 0
4 * 31 Cam EB* 05 54 57.8261678880 +59 53 18.127157424 5.220 5.200 5.200     A2V 108 0
5 V* IM Mon EB* 06 23 01.4692765176 -03 16 37.090499952   6.408 6.548     B3V 92 0
6 V* RY Gem EB* 07 27 24.1728227544 +15 39 34.699185396   8.88 8.68     A0V:e+K0II 144 0
7 V* TU Cnc EB* 08 52 16.6528782000 +09 05 18.779251308   10.73 10.53     A2(N) 44 0
8 * 49 Leo EB* 10 35 02.15893 +08 39 01.5434   5.72 5.67     A2V 121 0
9 * alf CrB EB* 15 34 41.26800 +26 42 52.8940 2.19 2.22 2.24 2.21 2.25 A1IV 482 0
10 V* U Oph EB* 17 16 31.7137908168 +01 12 37.998551304   5.941 5.921     B3V 380 1
11 V* EG Ser EB* 18 26 02.1984899304 -01 40 51.349153692   8.41 8.24     A0IV/V 49 0
12 V* RZ Sct EB* 18 26 33.5232714792 -09 12 05.987275200 8.09 8.24 7.53     B2/3Ib/II 170 0
13 V* V451 Oph EB* 18 29 14.0426779320 +10 53 31.429623012   7.95 7.91     A0IV 165 0
14 V* RX Her EB* 18 30 39.2600750472 +12 36 40.330018404   7.35 7.29     A0Vv 182 0
15 V* HS Her EB* 18 50 49.7705985120 +24 43 11.940783384 8.180 8.580 8.560     B6III 121 1
16 V* DI Her EB* 18 53 26.2399243224 +24 16 40.792648332   8.46 8.47     B5III 264 0
17 V* BH Dra SB* 19 03 39.5419708392 +57 27 25.861535388   8.47 8.43     A1Vn 74 0
18 V* V805 Aql SB* 19 06 18.1995031128 -11 38 57.338921508   7.88 7.59     A3m 94 0
19 V* V889 Aql EB* 19 18 49.8402950736 +16 15 00.449818524   8.77 8.58     A 58 1
20 * sig Aql EB* 19 39 11.6423977488 +05 23 51.979984260 4.60 5.20 5.17     B3V 169 0
21 V* DV Aql Mi* 19 43 27.2992606272 -10 13 42.275036244   14.5 13.42     ~ 14 0
22 V* V380 Cyg EB* 19 50 37.3267754400 +40 35 59.135141652 4.86 5.613 5.680     B1.1III+B2.5/3V: 291 0
23 V* V477 Cyg EB* 20 05 27.6886714176 +31 58 18.108420780   8.68 8.53     A1V 214 1
24 V* DR Vul EB* 20 13 46.8508993704 +26 45 01.628896644   8.94 8.71     B8 87 1
25 HD 193576 WR* 20 19 32.4229160448 +38 43 53.959035756 8.15 8.53 8.00     WN5+O6II-V 706 0
26 V* V478 Cyg SB* 20 19 38.7476920032 +38 20 09.195280836   9.16 8.767     B0Vp 190 0
27 V* Y Cyg SB* 20 52 03.5771840640 +34 39 27.486121104 6.31 7.23 7.32     O9.5IV+O9.5IV 370 1
28 V* EE Peg EB* 21 40 01.8804448032 +09 11 05.150643900   7.09 6.98     A1III 168 0
29 V* EK Cep SB* 21 41 21.5042268336 +69 41 34.112933916   7.95 7.89     A0V 213 0
30 * del Cap EB* 21 47 02.4442395 -16 07 38.233507 3.22 3.12 2.83 2.59 2.43 kA5hF0mF2III 271 0
31 V* AW Peg EB* 21 52 20.6904398472 +24 00 44.333354376   7.99 7.65     A3III 102 0
32 V* CM Lac SB* 22 00 04.4501141616 +44 33 07.736337396   8.40 8.21     A3m 162 0
33 V* XZ Cep EB* 22 32 25.0788763008 +67 09 02.479638996   9.22 8.51     O9.5V 99 0
34 V* AH Cep EB* 22 47 52.9412851944 +65 03 43.795145556 6.53 7.10 6.88     B0.2V+B2V 217 0
35 V* NY Cep EB* 22 58 39.7987260456 +63 04 37.752984732 7.23 7.74 7.4     B5 152 0
36 HD 218066 Be* 23 04 02.2270838832 +63 23 48.722060508 7.50 7.97 7.6     B1.5Vn 284 0
37 V* AR Cas EB* 23 30 01.9406369832 +58 32 56.112185112 4.18 4.760 4.886     B3V 215 0

To bookmark this query, right click on this link: simbad:objects in 1998A&A...335..179P and select 'bookmark this link' or equivalent in the popup menu