The AGORA High-resolution Galaxy Simulations Comparison Project. IX - Part 1: Effects of a Major Galaxy Merger on Star Formation of a Milky Way-mass Galaxy Progenitor

arXiv:2607.21709 · astro-ph.GA · Submitted 2026-07-23 · Read on arXiv

Thinh Huu Nguyen, Kirk S. S. Barrow, Minyong Jung, Ramón Rodríguez-Cardoso, Santi Roca-Fàbrega, Ji-hoon Kim, Joel R. Primack, Kentaro Nagamine, Renyue Cen, Daniel Ceverino, Weiguang Cui, Anna Genina, Hyeonyong Kim, Yuri Oku, Johnny W. Powell, Yves Revaz, Pablo Granizo, Alessandro Lupi, Ikkoh Shimizu, Héctor Velázquez, Tom Abel, Oscar Agertz, Avishai Dekel, Boon Kiat Oh, Thomas R. Quinn, the AGORA Collaboration

astro-ph.GA

Submitted: 2026-07-23

Comments: 32 pages (24 pages main text plus appendices and references), 16 figures (11 in main text), 3 tables, submitted to MNRAS. Visit the AGORA Collaboration website (https://sites.google.com/site/santacruzcomparisonproject/) for more information

Project page: https://sites.google.com/site/santacruzcomparisonproject

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

Terminology

• Stellar Feedback — 35× in this paper · explained in 2 episodes
• Core — 19× in this paper · explained in 2 episodes
• Metallicity — 8× in this paper · explained in 3 episodes
• Velocity Dispersion — 5× in this paper · explained in 2 episodes
• AGN — 4× in this paper · explained in 1 episode
• Star Formation Rate (SFR) — 3× in this paper · explained in 5 episodes
• Trace — 3× in this paper · explained in 2 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Angular Momentum Loss — 1× in this paper · explained in 1 episode
• Assembling Galaxies of Resolved Anatomy — 1× in this paper
• Calibration — 1× in this paper · explained in 7 episodes
• Diffusion Processes — 1× in this paper · explained in 2 episodes
• National Research Foundation of Korea — 1× in this paper
• World Premier Research Center Initiative — 1× in this paper

Sources

• The AGORA High-resolution Galaxy Simulations Comparison Project. XI: Solving the Non-Spherical Morphology and Evolution of Dark Matter Halos with Haskap Pie
• The AGORA High-resolution Galaxy Simulations Comparison Project. VIII: Disk Formation and Evolution of Simulated Milky Way Mass Galaxy Progenitors at $1<z<5$
• The AGORA High-resolution Galaxy Simulations Comparison Project. X: Formation and Evolution of Galaxies at the High-redshift Frontier
• Invisible Major Mergers: Why the Definition of a Galaxy Merger Ratio Matters

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