21 citations · 72 across the 10 of their papers we have counts for
4 papers · 1 filter
Could very low-metallicity stars with rotation-dominated orbits have been shepherded by the bar?
Zhen Yuan, Chengdong Li, Nicolas F. Martin +11
The most metal-poor stars (e.g. [Fe/H] ) are the ancient fossils from the early assembly epoch of our Galaxy, very likely before the formation of the thick disc. Recent s…
Exploring the impact of a rapidly decelerating bar on transforming bulge orbits into disc-like orbits
Chengdong Li, Zhen Yuan, Giacomo Monari +7
The most metal-poor tail of the Milky Way ([Fe/H] 2.5) contains a population of stars with very prograde planar orbits, which is puzzling in both their origin and evoluti…
Detection of multiple phase space overdensities of GSE stars by orbit integration
WenboWu, GangZhao, JiangChang +5
In N-body simulations, nearly radial mergers can form shell-like overdensities in the sky position and phase space () due to the combination of dynamical friction and tidal…
Gaia DR3 features of the phase spiral and its possible relation to internal perturbations
Chengdong Li, Arnaud Siebert, Giacomo Monari +2
Disc stars from the Gaia DR3 RVS catalogue are selected to explore the phase spiral as a function of position in the Galaxy. The data reveal a two-armed phase spiral pattern in the…