3 papers
astro-ph.GA2026
Evidence of a massive accretion event 1.8 billion years before the Gaia-Sausage-Enceladus merger
Davide Massari, Chiara Zerbinati, Cristiano Fanelli +15
The merger history of the Galaxy has been traced back firmly to redshift 2 (10 Billion years ago). While evidence for the existence of at least one more significant merger before t…
astro-ph.GA2025
Is Liller 1 a building block of the Galactic bulge? -- Evidence with APOGEE
Anna Liptrott, Ricardo P. Schiavon, Andrew C. Mason +10
Liller 1 is a stellar system orbiting within the inner 0.8kpc of the Galactic centre, characterised by a wide spread in age and metallicity, indicating a high mass. Liller 1 has be…
astro-ph.GA2024
Testable predictions of outside-in age gradients in dwarf galaxies of all types
Claire L. Riggs, Alyson M. Brooks, Ferah Munshi +4
We use a sample of 73 simulated satellite and central dwarf galaxies spanning a stellar mass range of to investigate the origin of their stellar age gra…