Author

Lukas A. Sosna

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Preprint Aug 2026

The Mass-Size Plane Does Not Resolve the Identifiability Limit of the Radial Acceleration Relation

We present a computational audit of the identifiability limits for structural corrections to the Radial Acceleration Relation (RAR) using a canonical subset of the SPARC database (N = 126). Rather than proposing a new dynamical law, we establish the observational conditions under which such a law would be mathematicall...

Lukas A. Sosna · 0 citations

Review Aug 2026

An Identifiability Audit of One-Parameter Structural Corrections to the Radial Acceleration Relation in SPARC

We ask whether any one-parameter structural correction to the radial acceleration relation (RAR) can be uniquely recovered from SPARC rotation curves, and answer with an identifiability audit: each candidate is benchmarked against per-galaxy nuisance freedom, with predictive scoring against mass-only and data-quality b...

Lukas A. Sosna · 0 citations