V773 Cas, QS Aql, and BR Ind: eclipsing binaries as parts of multiple systems

0473821 - FZÚ 2018 RIV US eng J - Journal Article
Zasche, P. - Juryšek, Jakub - Nemravová, J. - Uhlář, R. - Svoboda, P. - Wolf, M. - Hoňková, K. - Mašek, Martin - Prouza, Michael - Čechura, Jan - Korčáková, D. - Šlechta, Miroslav
V773 Cas, QS Aql, and BR Ind: eclipsing binaries as parts of multiple systems.
Astronomical Journal. Roč. 153, č. 1 (2017), s. 1-7, č. článku 36. ISSN 0004-6256. E-ISSN 1538-3881
R&D Projects: GA MŠMT LM2015038; GA MŠMT LG15014; GA ČR(CZ) GA14-17501S; GA MŠMT LG14013
Institutional support: RVO:68378271 ; RVO:67985815
Keywords : binaries * eclipsing stars * spectroscopy
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 4.150, year: 2017
Method of publishing: Open access

Eclipsing binaries still represent crucial objects for our understanding of the Universe. Especially those ones which are components of the multiple systems can help us solving the problem of their formation. The radial velocities together with the light curve analysis produced for the first time the precise physical parameters of the components of the multiple systems V773 Cas, QS Aql, and BR Ind. Their visual orbits were also analysed, resulted in slightly improved orbital elements. System BR Ind was found to be a quadruple star consisting of two eclipsing K dwarfs orbiting around each other with the period of 1.786 days, while the distant component is a single-lined spectroscopic binary with the orbital period of about 6 days. Both pairs are moving around each other on its 148 yr orbit.
Permanent Link: http://hdl.handle.net/11104/0270953