Slow stellar halo rotation as a signature of disc flips and GES-like mergers

arXiv:2609.01208 · astro-ph.GA · Submitted 2026-09-01 · Read on arXiv

astro-ph.GA

Submitted: 2026-09-01

Updated: 2026-09-01

Terminology

• Anisotropy — 14× in this paper · explained in 3 episodes
• Milky Way — 4× in this paper
• Alignment — 3× in this paper · explained in 1 episode
• Trace — 3× in this paper · explained in 2 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Science and Technology Facilities Council — 1× in this paper
• Sloan Digital Sky Survey — 1× in this paper
• Velocity Dispersion — 1× in this paper · explained in 2 episodes

Sources

• Galaxy mergers and disk angular momentum evolution: stellar halos as a critical test
• Counter-Rotation in Disk Galaxies
• The Backup Program of the Dark Energy Spectroscopic Instrument's Milky Way Survey

Related papers

• Apparent Stability in Self-Gravitating Turbulence and the Evolution of Molecular Clouds
• Two sets of potential-density basis pairs for the study of radial perturbations in collisionless spherical stellar systems
• Constraining reionization-era Ly alpha escape with JELS-MUSE: a highly complete H alpha-selected sample at z about6.1
• Deriving volume density profiles of filaments from observed surface densities
• Little Red Dots and Supermassive Black Hole Seed Formation in Ultralight Dark Matter Halos
• MEGATRON: how the first stars can create an iron metallicity plateau in the smallest dwarf galaxies