activity
20202026
most citedTrimodal structure of Hercules stream explained by originating from bar resonances

42 citations · 60 across the 5 of their papers we have counts for

collaborators

8 papers

astro-ph.GA2026

Linking dynamics and chemistry in barred galaxies through action-space mapping

Tetsuro Asano, Victor P. Debattista, Michiko S. Fujii

We aim to extend the action-based framework, proposed by a previous study, for assigning chemical information to collisionless -body simulations of barred galaxies, enabling mor…

astro-ph.GA2026

Simulating Star Formation and Star Cluster Assembly in the Aquila Rift Using Archival Observations

Jeremy Karam, Michiko S. Fujii, Rachel Friesen +1

We simulate star formation and star cluster assembly inside a molecular cloud with parameters we derive directly from observations of the Aquila Rift. We model the evolution of sta…

astro-ph.GA20261 cited

Galaxy fly-bys sustain bar-halo friction and bar slowdown in disk galaxies

Rumi Kodama, Rimpei Chiba, Tetsuro Asano +2

Bars in disk galaxies slow down as they transfer their angular momentum to their dark matter halo via dynamical friction from near-resonant orbits. This bar-halo dynamical friction…

astro-ph.GA202517 cited

Little Red Dots Are Nurseries of Massive Black Holes

Fabio Pacucci, Lars Hernquist, Michiko Fujii

The James Webb Space Telescope (JWST) has revealed a previously unknown population of compact, red galaxies at , known as "Little Red Dots" (LRDs). With effective radii o…

astro-ph.GA2025

Ripples spreading across the Galactic disc. Interplay of direct and indirect effects of the Sagittarius dwarf impact

Tetsuro Asano, Michiko S. Fujii, Junichi Baba +2

Gaia data have revealed vertically asymmetric phase-space structures in the Milky Way (MW) disc, such as phase spirals, indicating vertical oscillations. These oscillations exhibit…

astro-ph.GA2024

Clues to growth and disruption of two neighbouring spiral arms of the Milky Way

Natsuki Funakoshi, Noriyuki Matsunaga, Daisuke Kawata +3

Studying the nature of spiral arms is essential for understanding the formation of the intricate disc structure of the Milky Way. The European Space Agency's Gaia mission has provi…