356 citations · 1k across the 31 of their papers we have counts for
31 papers
Angular momentum variation of the Milky Way thick disk: The dependence of chemical abundance and the evidence on inside-out formation scenario
Guozhen Hu, Zhengyi Shao, Lu Li
We investigate the angular momentum of mono-abundance populations (MAPs) of the Milky Way thick disk by using a sample of 26,076 giant stars taken from APOGEE DR17 and Gaia EDR3. T…
Correction factors of the measurement errors of the LAMOST-LRS stellar parameters
Shuhui Zhang, Guozhen Hu, Rongrong Liu +3
We aim to investigate the propriety of stellar parameter errors of the official data release of the LAMOST low-resolution spectroscopy (LRS) survey. We diagnose the errors of radia…
MaNGA 8313-1901: gas accretion observed in a blue compact dwarf galaxy?
Mengting Ju, Jun Yin, Rongrong Liu +13
Gas accretion is an important process in the evolution of galaxies, but it has limited direct observational evidences. In this paper, we report the detection of a possible ongoing…
Quantifying chemical and kinematical properties of Galactic disks
Guozhen Hu, Zhengyi Shao
We aim to quantify the chemical and kinematical properties of the Galactic disks with a sample of 119,558 giant stars having abundances and 3D velocities taken or derived from the…
Robust Gaussian Process Regression Based on Iterative Trimming
Zhao-Zhou Li, Lu Li, Zhengyi Shao
The Gaussian process (GP) regression can be severely biased when the data are contaminated by outliers. This paper presents a new robust GP regression algorithm that iteratively tr…
Modelling unresolved binaries of open clusters in color-magnitude diagram. I. method and application of NGC3532
Lu Li, Zhengyi Shao, Zhao-Zhou Li +3
The binary properties of open clusters place crucial constraints on star formation theory and clusters' dynamical evolution. We develop a comprehensive approach that models the col…