Improved physical properties of the quadruple sub-system with the eclipsing binary QZ Carinae
Mayer P, Harmanec P, Zasche P, Catalan-Hurtado R, Barlow BN, Fremat Y, Wolf M, Drechsel H, Chini R, Nasseri A, Christie GW, Walker WSG, Henden AA, Bohlsen T, Bozic H (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 50
Pages Range: 580-584
Journal Issue: 2
DOI: 10.31577/caosp.2020.50.2.580
Abstract
Using a collection of 79 spectra of the quadruple system QZ Car, we were able - for the first time in the optical region - to measure radial velocities of both components of the eclipsing subsystem Ac, and in combination with the photometric solution to obtain masses and radii of both bodies. We confirm that the Ac binary is a semi-detached system with a brighter primary Ac1 and a more massive secondary Ac2. Variations due to the light-time effect and secular changes in the systemic velocities of both binaries, Aa and Ac, allowed us to estimate the period of mutual orbit of binaries Aa and Ac to be about 11700 d. Preliminary improved basic properties of the system and its components are provided.
Authors with CRIS profile
Involved external institutions
Univerzita Karlova v Praze / Charles University in Prague
Czech Republic (CZ)
High Point University
United States (USA) (US)
Ruhr-Universität Bochum (RUB)
Germany (DE)
University of Zagreb / Sveučilište u Zagrebu
Croatia (HR)
Variable Stars South (VSS)
New Zealand (NZ)
Royal Observatory of Belgium / Koninklijke Sterrenwacht van België / Observatoire royal de Belgique
Belgium (BE)
American Association of Variable Star Observers (AAVSO)
United States (USA) (US)
Czech Republic (CZ)
High Point University
United States (USA) (US)
Ruhr-Universität Bochum (RUB)
Germany (DE)
University of Zagreb / Sveučilište u Zagrebu
Croatia (HR)
Variable Stars South (VSS)
New Zealand (NZ)
Royal Observatory of Belgium / Koninklijke Sterrenwacht van België / Observatoire royal de Belgique
Belgium (BE)
American Association of Variable Star Observers (AAVSO)
United States (USA) (US)
How to cite
APA:
Mayer, P., Harmanec, P., Zasche, P., Catalan-Hurtado, R., Barlow, B.N., Fremat, Y.,... Bozic, H. (2020). Improved physical properties of the quadruple sub-system with the eclipsing binary QZ Carinae. Contributions of the Astronomical Observatory Skalnate Pleso, 50(2), 580-584. https://dx.doi.org/10.31577/caosp.2020.50.2.580
MLA:
Mayer, P., et al. "Improved physical properties of the quadruple sub-system with the eclipsing binary QZ Carinae." Contributions of the Astronomical Observatory Skalnate Pleso 50.2 (2020): 580-584.
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