39 citations · 77 across the 3 of their papers we have counts for
6 papers
Hot subdwarf stars identified in Gaia DR2 with spectra of LAMOST DR6 and DR7 I. Single-lined spectra
Zhenxin Lei, Jingkun Zhao, Péter Németh +1
182 single-lined hot subdwarf stars are identified by using spectra from the sixth and seventh data release (DR6 and DR7) of the Large Sky Area Multi-Object Fibre Spectroscopic Tel…
Searching for Hot Subdwarf Stars in LAMOST DR1-II. Pure spectroscopic identification method for hot subdwarfs
Zhenxin Lei, Yude Bu, Jingkun Zhao +2
Employing a new machine learning method, named hierarchical extreme learning machine (HELM) algorithm, we identified 56 hot subdwarf stars in the first data release (DR1) of the La…
New hot subdwarf stars identified in Gaia DR2 with LAMOST DR5 spectra -- II
Zhenxin Lei, Jingkun Zhao, Péter Németh +1
388 hot subdwarf stars have been identified by using the Hertzsprung-Russell (HR) diagram built from the second data release (DR2) of the Gaia mission. By analyzing their observed…
New hot subdwarf stars identified in Gaia DR2 with LAMOST DR5 spectra
Zhenxin Lei, Jingkun Zhao, Németh Péter +1
We selected 4593 hot subdwarf candidates from the Gaia DR2 Hertzsprung-Russell (HR) diagram. By combining the sample with LAMOST DR5, we identified 294 hot subdwarf stars, includin…
Searching for hot subdwarf stars from the LAMOST spectra. III. classifying the hot subdwarf stars from LAMOST DR4 using deep learning method
Yude Bu, Jingjing Zeng, Zhenxin Lei
Hot subdwarf stars are core He burning stars located at the blue end of the horizontal branch, also known as the extreme horizontal branch. The properties of hot subdwarf stars are…
A possible formation channel for blue hook stars in globular cluster
Zhenxin Lei, Xuemei Chen, Fenghui Zhang +1
The formation mechanism for blue hook (BHk) stars in globular clusters (GCs) is still unclear. Following one of the possible scenario, named late hot flash scenario, we proposed th…