123 citations · 621 across the 12 of their papers we have counts for
10 papers
A Systematic NLTE Study of Very Metal-Poor Stars with Metallicity Down to dex. II. Lithium Abundance and New Insight to the Lithium Plateau
Hong-Liang Yan, Jinxiao Qin, Shuai Liu +12
Metal-poor stars are crucially important for understanding the early Galaxy, first stars, and the Universe. In this series of papers, we present a homogeneous non-local thermodynam…
Properties of Radial Velocities measurement based on LAMOST-II Medium-Resolution Spectroscopic Observations
R. Wang, A. -L. Luo, J. -J. Chen +28
The radial velocity (RV) is a basic physical quantity which can be determined through Doppler shift of the spectrum of a star. The precision of RV measurement depends on the resolu…
Non-LTE analysis of copper abundances for the two distinct halo populations in the solar neighborhood
H. L. Yan, J. R. Shi, P. E. Nissen +1
Two distinct halo populations were found in the solar neighborhood by a series of works. They can be clearly separated by [alpha\Fe] and several other elemental abundance ratios in…
Statistical equilibrium of silicon in the atmospheres of metal-poor stars
J. R. Shi, T. Gehren, L. Mashonkina +1
Aims. The statistical equilibrium of neutral and ionized silicon in the atmospheres of metal-poor stars is discussed. Non-local thermodynamic equilibrium effects are investigated a…
Beryllium abundances in metal-poor stars
K. F. Tan, J. R. Shi, G. Zhao
We have determined beryllium abundances for 25 metal-poor stars based on the high resolution and high signal-to-noise ratio spectra from the VLT/UVES database. Our results confirm…
Statistical equilibrium of silicon in the solar atmosphere
J. R. Shi, T. Gehren, K. Butler +2
The statistical equilibrium of neutral and ionised silicon in the solar photosphere is investigated. Line formation is discussed and the solar silicon abundance determined. High-re…