77 citations · 506 across the 21 of their papers we have counts for
7 papers · 1 filter
Evidence for Populations-dependent vertical motions and the Long-lived Non-Steady Lopsided Milky Way Warp
Xiang Li, Hai-Feng Wang, Yang-Ping Luo +3
We present the Galactic disk vertical velocity analysis using OB type stars (OB), Red Clump stars (RC), and Main-Sequence-Turn-Off stars (MSTO) with different average age populatio…
Mapping the Milky Way Disk with Gaia DR3: 3D extended kinematic maps and rotation curve to kpc
Hai-Feng Wang, Žofia Chrobáková, Martín López-Corredoira +1
We apply a statistical deconvolution of the parallax errors based on Lucy's inversion method (LIM) to the Gaia-DR3 sources to measure their three dimensional velocity components in…
Kinematic-Chemical analysis and Time tagging for the Diagonal Ridge Structure of the Galactic Outer Disk with LAMOST Red Giant Branch Stars
Peng Yang, Hai-Feng Wang, Zhi-Quan Luo +2
We investigate the kinematic-chemical distribution of Red Giant Branch (RGB) stars from the LAMOST survey crossed matched with Gaia DR2 proper motions, and present time tagging for…
Mass and Age determination of the LAMOST data with different Machine Learning methods
Qi-Da Li, Hai-Feng Wang, Yang-Ping Luo +3
We present a catalog of 948,216 stars with mass label and a catalog of 163,105 red clump (RC) stars with mass and age labels simultaneously. The training dataset is cross matched f…
The Dark Matter Tidal Stripping History of the Sagittarius Core with N-body simulations
Hai-Feng Wang, Francois Hammer, Yan-Bin Yang +1
The infall of the Sagittarius (Sgr) Dwarf Spheroidal Galaxy in the Milky Way halo is an unique opportunity to understand how the different components of a dwarf galaxy could be tid…
Reconstructing the whole 6D properties of the Sagittarius stream with N-body simulations
Hai-Feng Wang, Yan-Bin Yang, Francois Hammer +1
It is a challenge to reproduce the full 6D space-phase properties of Sagittarius (Sgr) dwarf galaxy and its Stream simultaneously. Using N-body simulations with a Milky Way mass of…
Broadening and redward asymmetry of H line profiles observed by LAMOST during a stellar flare on an M-type star
Yuchuan Wu, Hechao Chen, Hui Tian +6
Stellar flares are characterized by sudden enhancement of electromagnetic radiation in stellar atmospheres. So far much of our understanding of stellar flares comes from photometri…