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May 28, 20260 citationsOpen Access

Constitutive Framework for Weak-Field Gravity and Galaxy Dynamics

A Constitutive Framework for Weak-Field Gravity: Galaxy Rotation Curves and SDSS Weak Gravitational Lensing

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Authors

RDRalph C DeMartino

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Overview

Randomized trial evaluates gravitational dynamics in galaxies, suggesting a unified model without dark matter.

Key Points

  • This research aims to develop a constitutive framework for gravity that explains galaxy dynamics and lensing phenomena without dark matter.
  • Developed a constitutive model for gravity that integrates weak-field equations and low-acceleration behavior.
  • Applied the framework to reproduce galaxy rotation curves and gravitational lensing using SDSS DR7 data.
  • Performed projections over multiple stellar-mass bins to compare observed and predicted surface densities.
  • The model accurately predicts excess surface-density profiles across projected radii of 0.05–1.5 Mpc/h.
  • Baryonic-only predictions showed systematic underprediction of lensing amplitudes at larger radii.
  • The framework successfully describes multiple galactic observables using a single gravitational response structure.

Cite This Study

Ralph C DeMartino (2026) studied this question.

synapsesocial.com/papers/6a17ddab3fad632b0f9da71ahttps://doi.org/10.5281/zenodo.20389789
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1The Constitutive Gravitational Framework IX: Full-Sample Validation of the Weak-Field Response Using the SPARC Rotation-Curve Database and SDSS Weak Lensing2026
  2. 2A Constitutive Framework for Weak-Field Gravitational Dynamics in the Low-Acceleration Regime with a Minimal Relativistic Extension2026
  3. 3A Constitutive Framework for Weak-Field Gravitational Dynamics in the Low-Acceleration Regime with a Minimal Relativistic Extension2026 · 2 citations
  4. 4Spacetime Has a Relaxation Time: A Constitutive Completion of Weak-Field Gravity2026
  5. 5A Constitutive Approach to Weak-Field Gravitational Dynamics in the Low-Acceleration Regime2026