The He II line λ4686 in WN binaries |
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| Authors: | B S Shylaja |
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| Institution: | (1) Indian Institute of Astrophysics, 560034 Bangalore |
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| Abstract: | The behaviour of the λ4686 line of He II in various WN binaries is studied for variations in total flux as well as radial
velocities. It appears that the true motion of the WN component is not depicted by this line especially for short-period binaries.
A qualitative explanation is sought in terms of a large, extended line-emitting region and multiple-component line profile. |
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| Keywords: | stars emission-line— stars binaries— stars WN-type |
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