V456 Ophiuchi and V490 Cygni: Systems with the shortest apsidal-motion periods

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10100970" target="_blank" >RIV/00216208:11320/11:10100970 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201015720" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201015720</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201015720" target="_blank" >10.1051/0004-6361/201015720</a>

Result language
angličtina
Original language name
V456 Ophiuchi and V490 Cygni: Systems with the shortest apsidal-motion periods
Original language description
The first detailed analysis of the two eclipsing binaries V456 Oph and V490 Cyg. The main result is the discovery that both systems have eccentric orbits. For V456 Oph we deal with the eccentric eclipsing binary system with the shortest orbital period known (about 1.016 day), while the apsidal motion period is about 23 years. V490 Cyg represents the eclipsing system with the shortest apsidal motion period (about 18.8 years only). The two components of V456 Oph are probably of spectral type F.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Project
<a href="/en/project/GAP209%2F10%2F0715" target="_blank" >GAP209/10/0715: Accurate physical properties of hot stars based on binary and multiple star studies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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