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CDN-239: The First Data Gate — Proxy fit, taxonomy census, and branch assessment from a twelve-cluster sample

Year: 2026

Type: conference-abstract

Abstract: CDN-239 passes the first data-facing gate of the GCFT dual register. A 12-cluster sample from published weak-lensing masses and X-ray gas fractions is assembled, the sigmoid κ-proxy is fitted (loss=0.039, mean |Δκ|=0.039), and all four taxonomy classes {P,F,S,E} are populated for the first time. The data-driven saturation tolerance is ε_sat=0.09. Both branches score as Strong; neither dominates. CDN-240 inherits both tracks.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.20711639

Author: Hacquier, Nicky Joseph Hubertus Catharina

Language: English

Topic: Galaxies: Formation, Evolution, Phenomena

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7164892526

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