Physical interpretation of the empirical omega diagnostic

Determine the physical interpretation of the empirical two-boundary kinematic correction parameterized by \(\omega\) for baryonic rotation-curve reconstruction in the 84-galaxy SPARC benchmark.

Background

The paper evaluates an empirical transformation that computes a single coefficient ω\omega from the innermost and outermost measured points of each galaxy’s observed rotation curve, then transforms the full profile according to Vadj=Vobs−RωV_{\rm adj}=V_{\rm obs}-R\omega. The analysis validates this procedure as a reproducible data transformation and diagnostic, but explicitly avoids assigning it a new force law or a unique cosmological interpretation.

Although the transformed curves are compared with baryonic reconstructions and show reduced aggregate discrepancies relative to a simple Keplerian reference, these numerical results do not establish the physical mechanism underlying ω\omega. The unresolved issue is therefore to identify and substantiate what physical phenomenon, if any, the empirical correction represents.

References

These results support continued use of $\omega$ as an empirical kinematic diagnostic whose physical interpretation remains open.