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astro-ph.GA2025

Rediscovering the Milky Way with an orbit superposition approach and APOGEE data V. The disc growth and history of star formation

Bridget Ratcliffe, Sergey Khoperskov, Nathan Lee +8

The Milky Way's (MW's) star formation history (SFH) offers insight into the chronology of its assembly and the mechanisms driving its structural development. In this study, we pres…

astro-ph.GA2025

The impact of radial migration on disk galaxy star formation histories: II. Role of bar strength, disk thickness, and merger history

J. P. Bernaldez, I. Minchev, B. Ratcliffe +7

Reconstructing the star formation history (SFH) of disk galaxies is central to understanding their growth and evolution, yet such estimates can be strongly biased by stellar radial…

astro-ph.GA2025

The impact of radial migration on disk galaxy star formation histories I. Biases in spatially resolved estimates

I. Minchev, K. Attard, B. Ratcliffe +9

Knowledge of the spatially resolved star formation history (SFH) of disk galaxies provides crucial insight into disk assembly, quenching, and chemical evolution. However, most reco…

astro-ph.GA2025

Bar-spiral interaction produces radial migration and star formation bursts

Léa Marques, Ivan Minchev, Bridget Ratcliffe +8

Central bars and spirals are known to strongly impact the evolution of their host galaxies, both in terms of dynamics and star formation. Their typically different pattern speeds c…

astro-ph.GA2024

Rediscovering the Milky Way with orbit superposition approach and APOGEE data II. Chrono-chemo-kinematics of the disc

Sergey Khoperskov, Matthias Steinmetz, Misha Haywood +9

The stellar disc is the dominant luminous component of the Milky Way (MW). Although our understanding of its structure is rapidly expanding due to advances in large-scale stellar s…

astro-ph.GA2024

Rediscovering the Milky Way with orbit superposition approach and APOGEE data I. Method validation

Sergey Khoperskov, Glenn van de Ven, Matthias Steinmetz +9

We introduce a novel orbit superposition method designed to reconstruct the stellar density structure, kinematics, and chemical abundance distribution of the entire Milky Way by le…