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Spectroscopic orbit determination of two metal-weak dwarf stars: HD 64491 and HD 141851

In: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 38, no. 2
G. Nikolov - E. Atanasova - I.kh. Iliev - E. Paunzen - I.s. Barzova
Detaily:
Rok, strany: 2008, 433 - 434
Kľúčové slová:
stars: chemically peculiar, stars: binaries: orbital elements
O článku:
Based on high-resolution CCD spectra, radial velocity curves of HD 64491 and HD 141851 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 HD 64491: Porb = 187.8 days, e = 0.5, a sin i = 0.39 AU, q = m2/m1 ≦ 0.65. For the other star HD 141851 we have obtained: Porb = 1073 days, e = 0.7, a sin i = 1.15 AU, and q = m2/m1 ≦ 0.5.
Ako citovať:
ISO 690:
Nikolov, G., Atanasova, E., Iliev, I., Paunzen, E., Barzova, I. 2008. Spectroscopic orbit determination of two metal-weak dwarf stars: HD 64491 and HD 141851. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 38, no.2, pp. 433-434. 1335-1842.

APA:
Nikolov, G., Atanasova, E., Iliev, I., Paunzen, E., Barzova, I. (2008). Spectroscopic orbit determination of two metal-weak dwarf stars: HD 64491 and HD 141851. Contributions of the Astronomical Observatory Skalnaté Pleso, 38(2), 433-434. 1335-1842.