Double-lined spectroscopic binaries in M11

Mikhail Kovalev; Ilya Straumit

doi:10.1093/mnras/stab3365

Double-lined spectroscopic binaries in M11

Solar and Stellar Astrophysics 2021-12-08 v2 Astrophysics of Galaxies

Authors: Mikhail Kovalev , Ilya Straumit

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Abstract

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.

Keywords

binary stars

Cite

@article{arxiv.2108.13853,
  title  = {Double-lined spectroscopic binaries in M11},
  author = {Mikhail Kovalev and Ilya Straumit},
  journal= {arXiv preprint arXiv:2108.13853},
  year   = {2021}
}

Comments

accepted in MNRAS 15.11.21

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