The Components of the HD 206267 A Triple Star System (original) (raw)

Abstract

We present double-lined spectroscopic orbital elements for the central binary in the massive multiple star, HD 206267 based on fits of cross-correlation functions of the 36 IUE high dispersion UV spectra available. These elements give masses for the primary and secondary components of m1 sin 3 i = 28.0 M&sun; ± 1.8 and m2 sin 3 i = 15.3 M&sun; ± 1.5. We also present tomographic reconstructions of all three spectroscopic components that confirm the O6.5 V((f)) classification of the composite spectrum applies to the primary, indicate a B0 V type for the secondary, and an O8 V type for the tertiary. The relative line strengths between the reconstructed spectra suggest magnitude differences of Delta m = -2.5 log (Fs/F_p) = 1.4 ± 0.2 in the UV and Delta m = 1.2 ± 0.3 in the optical for the secondary and Delta m = -2.5 log (Ft/F_p) = 1.2 ± 0.2 in the UV and Delta m = 1.0 ± 0.3 in the optical for the tertiary. The widths of the UV cross-correlation functions are used to estimate the projec...

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