activity
20232026
most citedThe epoch of the Milky Way's bar formation: dynamical modelling of Mira variables in the nuclear stellar disc

2 citations · 3 across the 5 of their papers we have counts for

collaborators

7 papers

astro-ph.GA2026

Impact of Gaia-Sausage-Enceladus merger revealed by a single cosmic clock: thick-to-thin disc transition, gas disc shrinking and bar formation

Natsuki Funakoshi, Daisuke Kawata, Jason L. Sanders +5

Whether the formation of the Galactic bar was connected to the Gaia-Sausage-Enceladus (GSE) merger, the last significant merger experienced by the Milky Way, remains an open questi…

astro-ph.IM2025

Transformational astrophysics and exoplanet science with Habitable Worlds Observatory's High Resolution Imager

Vincent Van Eylen, Richard Massey, Saeeda Awan +167

Habitable Worlds Observatory (HWO) will be NASA's flagship space telescope of the 2040s, designed to search for life on other planets and to transform broad areas of astrophysics.…

astro-ph.GA2025

Orbital migration and heating history of the Galactic disc: a transition between the bimodal discs

HanYuan Zhang, Vasily Belokurov, Jason L. Sanders +7

Stellar orbits in the Galactic disc evolve from their birth to the current shape through both radial migration and dynamical heating. The history of their secular evolution is impr…

astro-ph.GA2025★ 1 cited

Thick-to-thin disc transition and gas disc shrinking induced by the Gaia-Sausage-Enceladus merger

Natsuki Funakoshi, Daisuke Kawata, Jason L. Sanders +3

Understanding the Milky Way disc formation requires characterising its structural and kinematic properties as functions of stellar age. Using red giant stars from APOGEE DR17 and G…

astro-ph.GA2025

GalactiKit: reconstructing mergers from debris using simulation-based inference in Auriga

Andrea Sante, Daisuke Kawata, Andreea S. Font +1

We present GalactiKit, a data-driven methodology for estimating the lookback infall time, stellar mass, halo mass and mass ratio of the disrupted progenitors of Milky Way-like gala…

astro-ph.GA2023★ 2 cited

The epoch of the Milky Way's bar formation: dynamical modelling of Mira variables in the nuclear stellar disc

Jason L. Sanders, Daisuke Kawata, Noriyuki Matsunaga +4

A key event in the history of the Milky Way is the formation of the bar. This event affects the subsequent structural and dynamical evolution of the entire Galaxy. When the bar for…

astro-ph.GA2023

The impact of bar origin and morphology on stellar migration

Elizabeth J. Iles, Alex R. Pettitt, Takashi Okamoto +1

Different mechanisms driving bar structure formation indicate that bar origins should be distinguishable in the stellar populations of galaxies. To study how these origins affect d…