The dawn is quiet II: Gaia XP constraints on the Milky Way’s proto-Galaxy from very metal-poor MDF tails
Boquan Chen, Matthew D A Orkney, Yuan-Sen Ting, Michael R. Hayden
The earliest phase of the Milky Way’s evolution involved a transition from a dispersion-supported proto-galaxy to a rotationally supported disk. A key chemical signature of this transition is the moderate rise in [ α /Fe] near [ F e / H ] …