A Phenomenological Nonlocal Alignment Field Model for Galactic Dynamics and Lensing
Title: CIPA v4.4: A Phenomenological Nonlocal Alignment Field Model for Galactic Dynamics and Lensing Description: This paper presents CIPA v4.4 (cite: 1), a phenomenological effective field model developed as an alternative to non-baryonic dark matter to explain galactic and extragalactic observations (cite: 1, 4). The model is based on a nonlocal alignment field ($A$) characterized by spatial nonlocality and temporal memory effects (cite: 2, 8). Key features of the model include: Galactic Dynamics: Reproduction of flat outer rotation curves through nonlocal spatial coupling (cite: 8, 11). Gravitational Lensing: Prediction of approximately isothermal scaling in weak-lensing profiles (cite: 12). Cluster-Scale Effects: Natural explanation for offsets between baryonic and lensing distributions via temporal response (cite: 13). Unified Parameter Set: Requirement of a single parameter set to fit both rotation and lensing data (cite: 15). Falsifiability: The primary channel for falsification is the prediction of tidal stellar streams. Unlike the stochastic perturbations predicted by subhalo models, CIPA predicts a smooth, global linear residual drift (cite: 14, 17, 22). Failure to observe this drift would directly falsify the model (cite: 17).
Authors
- Maximilian Birr
Publication Details
- Journal
- Zenodo (CERN European Organization for Nuclear Research)
- Published
- 2026-04-28
- DOI
- https://doi.org/10.5281/zenodo.19862541
- Primary Topic
- Galaxies: Formation, Evolution, Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00