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

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

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coska..38..433n&link_type=abstract

Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 38, no. 2, p. 433-434.

Other

Stars: Chemically Peculiar, Stars: Binaries: Orbital Elements

Scientific paper

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 ≦ 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 ≦ 0.5.

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