Something green beneath the surface: The dynamical nature of Fossil Structures in IllustrisTNG-100

arXiv:2606.19478 · astro-ph.GA · Submitted 2026-06-17 · Read on arXiv

astro-ph.GA

Submitted: 2026-06-17

Updated: 2026-10-19

Comments: 12 pages, 7 figures, submitted to Astronomy & Astrophysics. New version accepted

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Decoupling — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes

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