Halving Luminosity–Mass Scatter in X-ray Clusters with an Aperture Correction Protocol
Abstract
We present an empirical relation between cluster core radius and X-ray luminosity that reduces L_X–M scatter from 45.3% to 16.6%. Using 511 Planck–MCXC clusters, we quantify r_c/r_500 ∝ L_X^{-0.387} and demonstrate that fixed-profile aperture corrections systematically bias luminosities when this geometric diversity is present. This repository contains:- paper.pdf – Preprint submitted to MNRAS Letters- code.zip – Complete analysis pipeline (Python), including catalogs and results The code reproduces all figures and statistics in the paper.
Fields of Study & Subjects
Galaxies: Formation
Evolution
Phenomena
Cosmology and Gravitation Theories
Astrophysical Phenomena and Observations
Publication details
- Journal / source
- Zenodo (CERN European Organization for Nuclear Research)
- Publication date
- 14 January 2026
- Language
- EN
- Document type
- Preprint