Studies of binary stars in the Magellanic Clouds. I - NS 105-67: A massive double-lined O-type binary in the Large Magellanic Cloud

Astronomy and Astrophysics – Astrophysics

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Binary Stars, Magellanic Clouds, O Stars, Stellar Mass, Orbital Elements, Radial Velocity, Stellar Spectra

Scientific paper

The authors present spectrographic data for NS 105-67, which show it to be a double-lined O4f + O6 V spectroscopic binary with a period of 3.301 days. The stellar masses of the components are most probably of the order of 40 M_sun; and 60 M_sun;, thus making this one of the most massive systems known, and the first double-lined O-type system found in the LMC.

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