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

0429431 - ASÚ 2015 RIV FR eng J - Článek v odborném periodiku
Harmanec, P. - Holmgren, D. E. - Wolf, M. - Božić, H. - Guinan, E. F. - Kang, Y. W. - Mayer, P. - McCook, G. - Nemravová, J. - Yang, S. - Šlechta, Miroslav - Ruzdjak, D. - Sudar, D. - Svoboda, P.
Revised physical elements of the astrophysically important O9.5+O9.5V eclipsing binary system Y Cygni.
Astronomy & Astrophysics. Roč. 563, March (2014), A120/1-A120/12. ISSN 0004-6361. E-ISSN 1432-0746
Grant CEP: GA ČR GA205/06/0584
Výzkumný záměr: CEZ:AV0Z10030501
Klíčová slova: binaries: spectroscopic * stars: fundamental parameters
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
Impakt faktor: 4.378, rok: 2014

Thanks to its long and rich observational history and rapid apsidal motion, the massive eclipsing binary Y Cygrepresents one of the cornerstones of critical tests of 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 data simultaneously with the new dedicated series of our own spectral and photometric observations from observatories widely separated in longitude.
Trvalý link: http://hdl.handle.net/11104/0234553