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The O-type eclipsing contact binary LY Aurigae - member of a quadruple system
- 1.0421323 - ASÚ 2014 RIV FR eng J - Journal Article
Mayer, P. - Drechsel, H. - Harmanec, P. - Yang, S. - Šlechta, Miroslav
The O-type eclipsing contact binary LY Aurigae - member of a quadruple system.
Astronomy & Astrophysics. Roč. 559, November (2013), A22/1-A22/8. ISSN 0004-6361. E-ISSN 1432-0746
Institutional support: RVO:67985815
Keywords : early-type stars * binaries * eclipsing
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 4.479, year: 2013
The eclipsing binary LY Aur (O9 II + O9 III) belongs to the rare class of early-type contact systems. We obtained 23 new spectra at the Ondřejov and Dominion Astrophysical Observatories, which were analysed with four older Calar Alto and one ELODIE archive spectra. A new result of this study is that the visual companion of LY Aur – the spectral lines of which are clearly seen in our spectra – is also an SB1 binary having an orbital period of 2046, an eccentric orbit, and a radial velocity semi-amplitude of 33 km s-1.
Permanent Link: http://hdl.handle.net/11104/0227670
Number of the records: 1