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February 2, 2026Open Access

An Empirical Relaxation Framework for Disk Galaxies: A Coordinate System for Inner Rotation-Curve Diversity

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Authors

ARAttilio Riolo

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Overview

This preprint presents a framework assessing inner rotation-curve diversity in disk galaxies, suggesting new comparative methods.

Key Points

  • The aim is to establish a framework for categorizing disk galaxies based on their inner rotation curves using observational data.
  • Developed an empirical relaxation framework using SPARC observational data.
  • Introduced a scalar relaxation index standardizing galaxy classifications.
  • Analyzed rotation-curve structures across different galaxy samples.
  • Identified a continuous relaxation sequence among the SPARC galaxies.
  • Revealed systematic trends in inner rotation-curve structures.
  • Provided a coordinate system to compare observational data and theoretical models.

Cite This Study

Attilio Riolo (2026) studied this question.

synapsesocial.com/papers/6980ffd6c1c9540dea812a6ehttps://doi.org/10.5281/zenodo.18446100
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