Spectroscopic orbit determination of two metal-weak dwarf stars: HD64491 and HD141851

Grigor Boykov Nikolov, E. Atanasova, Ilian Kh. Iliev, Ernst Paunzen, Ina S. Barzova

Publications: Contribution to journalMeeting abstract/Conference paper

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.
Original languageEnglish
Pages (from-to)433-434
Number of pages2
JournalContributions of the Astronomical Observatory Skalnaté Pleso
Publication statusPublished - 2008

Austrian Fields of Science 2012

  • 1030 Physics, Astronomy

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