Dengkai Jiang
Chinese Academy of Sciences
47 Papers
85 Citations
Dengkai Jiang is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Globular cluster & Stars. The author has an hindex of 15, co-authored 41 publications.
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Papers
The evolutionary status of W Ursae Majoris-type systems
TL;DR: In this article, the evolutionary status and dynamical evolution of 130 W Ursae Majoris (W UMa) systems were investigated based on these data, and it was found that there is no evolutionary difference between W- and A-type systems in the M-J diagram.
White dwarf–main sequence binaries identified within SDSS DR7 and UKIDSS DR5
TL;DR: In this article, a catalogue of 523 white dwarf main sequence (WDMS) binaries from the spectroscopic Sloan Digital Sky Survey Data Release 7 (SDSS DR7), most of them previously identified, was presented.
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Binary interactions as a possible scenario for the formation of multiple stellar populations in globular clusters
TL;DR: In this article, the authors present a model for the formation of multiple stellar populations in globular clusters, which predicts that the stars with anomalous abundances observed in GCs are merged stars and accretor stars produced by binary interactions.
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Properties of Radial Velocities Measurement Based on LAMOST-II Medium-resolution Spectroscopic Observations
Ran Wang,A-Li Luo,J.-J. Chen,Z-R. Bai,Li Chen,Xuefei Chen,Subo Dong,Bing Du,Jian-Ning Fu,Zhanwen Han,J.-L. Hou,Yining Hou,Wen Hou,Dengkai Jiang,Xu Kong,L. Li,Chengze Liu,Jun-Ming Liu,Li Qin,Jianrong Shi,Hai-Jun Tian,Hong Wu,Chao-Jian Wu,Ji-Wei Xie,Hong Zhang,S. N. Zhang,Guo-Ming Zhao,Y.-H. Zhao,Jiayong Zhong,Weikai Zong,Fang Zuo +30 more
TL;DR: In this article, the radial velocities of the Large Sky Area Multi-Object Fibre Spectroscopic Telescope-II (LAMOST-II) medium-resolution (R similar to 7500) spectra are measured for 1,594,956 spectra through matching with templates.
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The energy transfer and its effects on the secondaries in W Ursae Majoris-type contact binaries
TL;DR: In this paper, the authors investigated the energy transfer of W UMa contact binaries and its effects on the secondary in W UMA contact binaries, and they derived theoretical curves (U1 vs q and U2 vs q) and showed that the secondary's radius and the density of the secondary are related to the relative energy tran-sfer rate.