3 papers
astro-ph.GA2026
Tracing the kinematic perturbations of the Milky Way spiral arms with APOGEE DR17 and Gaia DR3
Xi-Can Tang, Zhi Li, Iulia T. Simion +4
Aims. We constrain the dynamical perturbations of the spiral arms in the Milky Way disk, based on the non-axisymmetric streaming motions of RGB stars revealed by APOGEE and \textit…
astro-ph.GA2025
The Impact of Bar-induced Non-Circular Motions on the Measurement of Galactic Rotation Curves
Jie Liu, Zhi Li, Juntai Shen
We study the impact of bar-induced non-circular motions on the derivation of galactic rotation curves (RCs) using hydrodynamic simulations and observational data from the PHANGS-AL…
astro-ph.GA2024
The Milky Way bar potential constrained by the kinematics of SiO maser stars in BAaDE Survey
Tian-Ye Xia, Juntai Shen, Zhi Li +5
We introduce a novel method that utilizes the longitude-velocity (l-v) envelope to constrain the Milky Way (MW) bar potential. Previous work (Habing 2016) used the l-v diagram to e…