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arXiv 2108.13853astro-ph.SRastro-ph.GA
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M11中的双线光谱双星

Double-lined spectroscopic binaries in M11

Mikhail Kovalev, Ilya Straumit

摘要:

我们发展了一种新的双星光谱分析方法。我们的方法成功地识别SB 2候选人从高分辨率Gaia-ESO光谱。与常用的交叉关联函数分析相比,它适用于具有快速旋转成分的双星。我们测试我们的方法在疏散星团M 11的BAFG-恒星的合成和观测光谱。我们确认了5个先前检测到的SB 2候选人,并找到19个新的。对于三个SB 2候选人,我们发现圆形轨道,并获得动力学质量比。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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