Orbits of Two Double-Lined Spectroscopic Binaries HD 147971 and 75759
Open Access
- 1 October 1966
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 134 (1) , 97-106
- https://doi.org/10.1093/mnras/134.1.97
Abstract
HD 147971 ( ∊ Nor), discovered by the Lick observers over 50 years ago to show two spectra, consists of two B3 V stars. Orbital elements are derived for the first time (Table III). HD 75759 is a newly discovered binary system, consisting of two O9 V stars, with the long period of 33.3 days and large eccentricity (Table VI). m1 sin 3i and m2 sin 3i are 17.8 and 14.3 ⊙ respectively in the solution. The orbital elements are remarkably similar to those of ι Ori and HD 37756. It is the central exciting source in a large H II region (Gum 17).Keywords
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