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arXiv · 2310.09030

Spectroscopic triples and a chance alignment. A solution for a problem of suspicious mass ratios for SB2s from Wilson method

Mikhail Kovalev·Xuefei Chen·Zhanwen Han
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Abstract

We selected three double-lined spectroscopic binary systems which have extreme mass ratios, if measured using the Wilson method. We analysed medium resolution spectroscopic observations and space-based photometry and find that all these systems are not SB2, but rather triple systems and a chance alignment of another star with SB1 that have an unseen component. Therefore suspicious mass ratios determined by the Wilson method for some double-lined spectroscopic binary systems aren't correct as these systems are more complex.

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Mikhail Kovalev, Xuefei Chen, Zhanwen Han. 2023-10-13. Spectroscopic triples and a chance alignment. A solution for a problem of suspicious mass ratios for SB2s from Wilson method. https://arxiv.org/abs/2310.09030

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