3 papers
astro-ph.GA2026
Kinematic-Distance Biases in the Inner Milky Way from a Stellar-Dynamically Constrained Bar
Junichi Baba
We quantify how bar-driven non-circular motions bias Milky-Way gas maps inferred with the kinematic-distance (KD) method. KD reconstructions of H\,\textsc{i} and CO surveys assume…
astro-ph.GA2025
Bar-driven Streaming Motions Mimic a Massive Bulge in the Inner Milky Way
Junichi Baba
The circular speed curve of the Milky Way provides a key constraint on its mass distribution, reflecting the axisymmetric component of the gravitational potential. This is especial…
astro-ph.GA2025
Influence of Bar Formation on Star Formation Segregation and Stellar Migration: Implications for Variations in the Age Distribution of Milky Way Disk Stars
Junichi Baba
We present a chemo-dynamical -body/hydrodynamic simulation of an isolated Milky Way-like galaxy to investigate how bar formation influences star formation rates, stellar migrati…