A Model-Independent Optical Drift Framework for the Tolman Surface Brightness Test This record contains the manuscript and reproducible Python scripts associated with the optical-drift parametrization framework presented in the paper. The work introduces a model-independent decomposition of photon propagation into three channels: Longitudinal energy drift Temporal arrival-rate drift Transverse beam deformation This leads to a generalized Tolman surface-brightness scaling: SBobs/SBem= (1+z) − (1+γ+2κ) SB₎₁ₒ/SB₄₌ = (1+z) ^- (1++2) SBobs/SBem= (1+z) − (1+γ+2κ) The repository includes Python scripts that reproduce the Union2. 1 Type Ia supernova fits discussed in the manuscript, including: Closure-fixed realization (p = 1) Free-parameter extension (p free) Joint γ–κ exploration Included files Final manuscript (PDF) snfitdriftfreeₚ. py snfitgammaₖappa. py sndataᵤnion21. csv sndata. csv (duplicate filename for compatibility) README with execution instructions The scripts require Python 3 with standard scientific libraries (NumPy, SciPy, Matplotlib, Pandas). This package is intended to provide full reproducibility of the supernova analysis and to support further multi-probe optical closure reconstruction studies.
Serkan Kizilates (Fri,) studied this question.