139 citations · 542 across the 21 of their papers we have counts for
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Age of FGK Dwarfs Observed with LAMOST and GALAH: Considering the Oxygen Enhancement
Tiancheng Sun, Zhishuai Ge, Xunzhou Chen +11
Varying oxygen abundance could impact the modeling-inferred ages. This work aims to estimate the ages of dwarfs considering observed oxygen abundance. To characterize 67,503 LAMOST…
The First Photometric and Orbital Period Investigation of an Extremely Low Mass Ratio Contact Binary with a Sudden Period Change, TYC 4002-2628-1
Di-Fu. Guo, Kai Li, 1 Fen Liu +6
Photometric observations for the totally eclipsing binary system TYC 4002-2628-1, were obtained between November 2020 and November 2021. To determine the stellar atmospheric parame…
Extremely low mass ratio contact binaries -- I. the first photometric and spectroscopic investigations of ten systems
Kai Li, Xiang Gao, Xin-Yi Liu +4
The photometric and spectroscopic investigations of ten contact binaries were presented for the first time. It is discovered that the mass ratios of all the ten targets are smaller…
Ages of Main-Sequence Turn-Off Stars from the GALAH Survey
Xunzhou Chen, Zhishuai Ge, Yuqin Chen +6
Main sequence turn-off (MSTO) stars are good tracers of Galactic populations since their ages can be reliably estimated from atmospheric parameters. Based on the GALAH survey, we u…
Photometric investigations on two totally eclipsing contact binaries: V342 UMa and V509 Cam
Kai Li, Qi-Qi Xia, Jin-Zhong Liu +6
By analyzing two sets of complete light curves of V342 UMa and three sets of complete light curves of V509 Cam, we determined that the two systems are both W-…
Contact binaries at the short period cut-off I. statistics and the first photometric investigations of ten totally eclipsing systems
Kai Li, Qi-Qi Xia, Raul Michel +5
The period distribution of contact binaries exhibits a very sharp short period cut-off at 0.22 days. In order to provide valuable information on this short period limit, we observe…