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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/67985815:_____/14:00429431

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

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Svazek periodika

563

Číslo periodika v rámci svazku

březen

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

12

Strana od-do

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Kód UT WoS článku

000333798000120

EID výsledku v databázi Scopus

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