Research
The Low-α Splash Population in the Milky Way
AAS Nova · By Kerry Hensley ·
The Brief
- A study by Lais Borbolato et al., published in ApJL (volume 1008, article L23, 2026), models the Milky Way's Splash populations.
- The modeling suggests an early clumpy phase in the Galaxy's history is necessary to produce Splash stars.
- Splash stars have thick-disk-like chemistry but move on halo-like orbits.
Why it matters
The result links a specific early-formation stage of the Milky Way to the origin of a stellar population, which helps constrain models of how the Galactic disk formed.
Who’s affected
- astronomers studying Milky Way formation and galactic archaeology
- #milky way
- #galactic archaeology
- #stellar populations
- #galactic disk
- #astrophysics
Lais Borbolato et al 2026 ApJL 1008 L23 Modeling suggests that an early clumpy phase in the Milky Way’s history is necessary for the production of “Splash” stellar populations: stars with thick-disk-like chemistry on halo-like orbits. The post The Low-α Splash Population in the…