4 papers
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…
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…
Bar-driven Gas Dynamics of M31
Zi-Xuan Feng, Zhi Li, Juntai Shen +5
The large-scale gaseous shocks in the bulge of M31 can be naturally explained by a rotating stellar bar. We use gas dynamical models to provide an independent measurement of the ba…
How Nested Bars Enhance, Modulate, and are Destroyed by Gas Inflows
Zhi Li, Min Du, Victor P. Debattista +7
Gas flows in the presence of two independently-rotating nested bars remain not fully understood, which is likely to play an important role in fueling the central black hole. We use…