2010A&A...509A..18W


Query : 2010A&A...509A..18W

2010A&A...509A..18W - Astronomy and Astrophysics, volume 509, A18-18 (2010/1-1)

Relativistic apsidal motion in eccentric eclipsing binaries.

WOLF M., CLARET A., KOTKOVA L., KUCAKOVA H., KOCIAN R., BRAT L., SVOBODA P. and SMELCER L.

Abstract (from CDS):

The study of apsidal motion in detached eclipsing binary systems is known to be an important source of information about stellar internal structure as well as the possibility of verifying of General Relativity outside the Solar System. As part of the long-term Ondrejov and Ostrava observational projects, we aim to measure precise times of minima for eccentric eclipsing binaries, needed for the accurate determination of apsidal motion, providing a suitable test of the effects of General Relativity. About seventy new times of minimum light recorded with photoelectric or CCD photometers were obtained for ten eccentric-orbit eclipsing binaries with significant relativistic apsidal motion. Their O-C diagrams were analysed using all reliable timings found in the literature, and new or improved elements of apsidal motion were obtained. We confirm very long periods of apsidal motion for all systems. For BF Dra and V1094 Tau, we present the first apsidal-motion solution. The relativistic effects are dominant, representing up to 100% of the total observable apsidal-motion rate in several systems. The theoretical and observed values of the internal structure constant k2 were compared for systems with lower relativistic contribution. Using the light-time effect solution, we predict a faint third component for V1094 Tau orbiting with a short period of about 8 years.

Abstract Copyright:

Journal keyword(s): binaries: eclipsing - stars: general - stars: fundamental parameters - relativity

Simbad objects: 30

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Number of rows : 30
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 V* V459 Cas EB* 01 11 29.9132644248 +61 08 48.061774392   10.55 10.36     A2 72 0
2 V* TV Cet EB* 03 14 36.5087169168 +02 45 16.379242920   9.02 8.59     F3V 94 1
3 V* V1094 Tau EB* 04 12 03.5924004360 +21 56 50.567714844   9.67 8.97     G0 31 0
4 V* EW Ori SB* 05 20 09.1431629664 +02 02 40.004288664   10.47 9.78     F8 95 0
5 NAME Ori I As* 05 38 -02.8           ~ 592 0
6 V* RW Ori Or* 05 39 39.9869752104 -02 43 09.749888724     13.32   11.956 K1.0 25 0
7 V* GG Ori EB* 05 43 10.2226873248 -00 41 14.798359644   10.92       A2 74 0
8 V* RR Lyn SB* 06 26 25.8366305040 +56 17 06.346261104   5.76 5.54     kA3hA7VmF2 204 0
9 V* RU Mon EB* 06 54 12.3144510432 -07 35 45.031651440   10.64 10.51     B9pv 104 1
10 V* SW CMa EB* 07 08 15.2371235208 -22 26 25.248177960   9.32 9.16     A3IV 66 0
11 V* V596 Pup EB* 08 27 33.2747217 -20 50 38.240813   6.626 6.585     A1V 116 2
12 V* V636 Cen EB* 14 16 57.9122377992 -49 56 42.372930480   9.70 9.09     G0V 92 0
13 V* U Oph EB* 17 16 31.7137908168 +01 12 37.998551304   5.941 5.921     B3V 374 1
14 V* YY Sgr EB* 18 44 35.8393954416 -19 23 23.033743368   10.25 10.17     B8/9II 73 1
15 V* BF Dra SB* 18 50 59.3542767936 +69 52 57.490047660   10.33 9.76     F8 58 0
16 V* DI Her EB* 18 53 26.2399243224 +24 16 40.792648332   8.46 8.47     B5III 256 0
17 V* V889 Aql EB* 19 18 49.8402950736 +16 15 00.449818524   8.77 8.58     A 57 1
18 V* V1136 Cyg EB* 19 37 50.0364276336 +28 50 36.176345592   12.36 12.69     A0 30 0
19 V* V1143 Cyg EB* 19 38 41.1829269072 +54 58 25.647010572       5.6   F6Va 215 0
20 HD 185978 * 19 39 05.6063562792 +54 10 53.064329196   8.39 7.87     F8 23 0
21 V* IY Vul LP* 19 40 10.6190124576 +26 01 52.003610148   13.61 12.23     ~ 5 0
22 HD 331102 EB* 19 42 29.4562680000 +31 19 40.138490748   10.38 10.44     A2 79 0
23 V* V1147 Cyg EB* 19 45 52.4573303232 +32 15 40.310909820     11.91     ~ 27 0
24 V* DR Vul EB* 20 13 46.8508993704 +26 45 01.628896644   8.94 8.71     B8 86 1
25 V* EK Cep SB* 21 41 21.5042268336 +69 41 34.112933916   7.95 7.89     A0V 208 0
26 V* V345 Lac EB* 22 18 43.3359377304 +54 40 33.458976840   11.51 11.32     B5 44 0
27 V* BW Aqr SB* 22 23 15.9305850720 -15 19 56.201783268   10.8 10.3     F7 101 0
28 V* RW Lac SB* 22 44 57.1033105152 +49 39 27.512902116   11.23 10.81     F2 71 0
29 V* V731 Cep EB* 23 37 43.2924419496 +64 18 11.599490664   10.68 10.50     A5V+A7v 23 0
30 V* IT Cas SB* 23 42 01.3774276248 +51 44 36.818206584   11.57 11.23     F6 69 0

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2023.01.27-23:01:28

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