Spectroscopic orbit determination of two metal-weak dwarf stars: HD64491 and HD141851
- Author(s)
- Grigor Boykov Nikolov, E. Atanasova, Ilian Kh. Iliev, Ernst Paunzen, Ina S. Barzova
- Abstract
Based on high-resolution CCD spectra, radial velocity curves of HD64491 and HD141851 have been studied. Both stars are SB1 spectroscopic binaries with metal-weak characteristics. The PHOEBE code was used to derive the spectroscopic orbit solutions. The following parameters have been calculated for HD64491: Porb = 187.8 days, e = 0.5, a sin i = 0.39AU, q = m2/m1 &lid; 0.65. For the other star HD141851 we have obtained: Porb = 1073 days, e = 0.7, a sin i = 1.15AU, and q = m2/m1 &lid; 0.5.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Sofia University "St. Kliment Ohridski", Bulgarian Academy of Sciences (BAS)
- Journal
- Contributions of the Astronomical Observatory Skalnaté Pleso
- Pages
- 433-434
- No. of pages
- 2
- ISSN
- 1335-1842
- Publication date
- 2008
- Austrian Fields of Science 2012
- 1030 Physics, Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/dda45e04-08ab-465b-afd2-51e497825e33