Revised physical elements of the astrophysically important O9.5+O9.5V eclipsing binary system Y Cygni

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10286193" target="_blank" >RIV/00216208:11320/14:10286193 - isvavai.cz</a>

Alternative codes found

RIV/67985815:_____/14:00429431

Result on the web

<a href="http://dx.doi.org/10.1051/0004-6361/201323230" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201323230</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201323230" target="_blank" >10.1051/0004-6361/201323230</a>

Result language

angličtina

Original language name

Revised physical elements of the astrophysically important O9.5+O9.5V eclipsing binary system Y Cygni

Original language description

Context. Rapid advancements in light-curve and radial-velocity curve modelling, as well as improvements in the accuracy of observations, allow more stringent tests of the theory of stellar evolution. Binaries with rapid apsidal advance are particularly useful in this respect since the internal structure of the stars can also be tested. Aims. Thanks to its long and rich observational history and rapid apsidal motion, the massive eclipsing binary Y Cyg represents one of the cornerstones of critical testsof stellar evolutionary theory for massive stars. Nevertheless, the determination of the basic physical properties is less accurate than it could be given the existing number of spectral and photometric observations. Our goal is to analyse all these datasimultaneously with the new dedicated series of our own spectral and photometric observations from observatories widely separated in longitude. Methods. We obtained new series of UBV observations at three observatories separated in local

Czech name

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Czech description

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Type

J_x - 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

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

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Volume of the periodical

563

Issue of the periodical within the volume

březen

Country of publishing house

FR - FRANCE

Number of pages

12

Pages from-to

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UT code for WoS article

000333798000120

EID of the result in the Scopus database

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