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Relativistic apsidal motion in eccentric eclipsing binaries
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SYSNO ASEP 0354432 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Relativistic apsidal motion in eccentric eclipsing binaries Author(s) Wolf, M. (CZ)
Claret, L. (ES)
Kotková, Lenka (ASU-R)
Kučáková, H. (CZ)
Kocián, R. (CZ)
Brát, L. (CZ)
Svoboda, P. (CZ)
Šmelcer, L. (CZ)Source Title Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361
Roč. 509, January (2010), A18/1-A18/14Number of pages 14 s. Language eng - English Country FR - France Keywords binaries eclipsing Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics OECD category Astronomy (including astrophysics,space science) CEZ AV0Z10030501 - ASU-R (2005-2011) UT WOS 000274159400030 DOI 10.1051/0004-6361/200911671 Annotation 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. 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 k(2) 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. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2011
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