GraphShed: A Data-derived Graph-based waterShed Group Finder

arXiv:2606.03790 · astro-ph.CO, astro-ph.IM, physics.comp-ph · Submitted 2026-06-02 · Read on arXiv

astro-ph.CO, astro-ph.IM, physics.comp-ph

Submitted: 2026-06-02

Updated: 2026-09-17

Comments: 26 Pages, 8 Figures, 3 Tables, Accepted for publication in the Astrophysical Journal (ApJ)

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

Terminology

• Clustering — 9× in this paper · explained in 2 episodes
• Core — 4× in this paper · explained in 2 episodes
• Aggregation — 3× in this paper · explained in 1 episode
• Calibration — 3× in this paper · explained in 7 episodes
• Graph Construction — 2× in this paper · explained in 3 episodes
• Persistent Homology — 2× in this paper · explained in 3 episodes
• Trace — 2× in this paper · explained in 2 episodes
• Abundance — 1× in this paper · explained in 1 episode
• Anisotropy — 1× in this paper · explained in 3 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Hubble Tension — 1× in this paper · explained in 9 episodes
• N-body simulations — 1× in this paper · explained in 2 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Weak Lensing — 1× in this paper · explained in 2 episodes

Sources

• Encyclopedia Magneticum: Scaling Relations from Cosmic Dawn to Present Day
• Modeling the Galaxy Distribution in Clusters using Halo Cores
• Science-Driven Optimization of the LSST Observing Strategy
• Topology and geometry of Gaussian random fields II: on critical points, excursion sets, and persistent homology

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