20 citations · 21 across the 15 of their papers we have counts for
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Search for spectroscopic binaries using rotational velocities in five open clusters observed by ESO
Mikhail Kovalev, Mariyam Ahmed, Randa Asa'd
In this paper we detect double-lined spectroscopic binaries (SB2) in five open clusters: NGC 2243, NGC 2420, NGC 3532, NGC 6253 and NGC 6705 (M 11) using a method based on high val…
Detection of 12426 SB2 candidates in the LAMOST-MRS, using a binary spectral model
Mikhail Kovalev, Zenghua Zhou, Xuefei Chen +1
We use an updated method for the detection of double-lined spectroscopic binaries (SB2) using values from spectral fits. The method is applied to all spectra from LAMOS…
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
We selected three double-lined spectroscopic binary systems which have extreme mass ratios, if measured using the Wilson method. We analysed medium resolution spectroscopic observa…
r-process Abundance Patterns in the Globular Cluster M92
Evan N. Kirby, Alexander P. Ji, Mikhail Kovalev
Whereas light element abundance variations are a hallmark of globular clusters, there is little evidence for variation in neutron-capture elements. A significant exception is M15,…