Double-lined spectroscopic binaries in M11. (arXiv:2108.13853v2 [astro-ph.SR] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Kovalev_M/0/1/0/all/0/1">Mikhail Kovalev</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Straumit_I/0/1/0/all/0/1">Ilya Straumit</a>
We have developed a new method for spectral analysis of binaries. Our method
successfully identifies SB2 candidates from high-resolution Gaia-ESO spectra.
Compared to the commonly used cross-correlation function analysis, it works for
binaries with rapidly rotating components. We test our method on synthetic and
observational spectra of BAFG-stars in the open cluster M 11. We confirm five
previously detected SB2 candidates and find 19 new ones. For three SB2
candidates we find circular orbits and obtain dynamical mass ratios.
We have developed a new method for spectral analysis of binaries. Our method
successfully identifies SB2 candidates from high-resolution Gaia-ESO spectra.
Compared to the commonly used cross-correlation function analysis, it works for
binaries with rapidly rotating components. We test our method on synthetic and
observational spectra of BAFG-stars in the open cluster M 11. We confirm five
previously detected SB2 candidates and find 19 new ones. For three SB2
candidates we find circular orbits and obtain dynamical mass ratios.
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