#galactic dynamics
4 papers match
Invariant manifolds in barred galaxy simulations. III. Self-regulated weakening of strong spiral arms
T. Soler-Terricabras, S. Roca-Fà brega, M. Romero-Gómez
The paper investigates why strong spiral arms in barred galaxies weaken, showing that self‑gravitating spirals shift the galaxy’s Lagrangian points, disrupting invariant‑manifold d…
On the current status of tidal tails of Galactic open clusters
Tahereh Ramezani, Nikola Faltova, Prapti Mondal +4
The paper reviews recent observations and theories of tidal tails around Galactic open clusters, emphasizing how Gaia data and different detection methods shape our understanding o…
Chemodynamical evidence of the HR 1614 moving group as a bar resonance
Andreas J. Koch-Hansen, Vladislav Gulaev, Dominik H. Plonka +4
The study combines high‑resolution spectroscopy of six HR 1614 moving‑group stars with orbital frequency analysis to show that the group’s diverse ages and chemical patterns are be…
A differentiable hydrodynamical approach to the Milky Way bar pattern speed with CO longitude--velocity data
Junichi Baba, Kohei Hattori
The paper presents a differentiable hydrodynamical framework that simulates gas flow in the Milky Way’s barred potential and uses CO longitude‑velocity data to constrain the bar’s…