Exponential Distance-Redshift Relation: Phenomenological Comparison with ΛCDM Using 1701 Type Ia Supernovae

Key Points

• The research aims to evaluate an exponential distance-redshift relation against ΛCDM using a large dataset of Type Ia supernovae.
• Utilized the Pantheon+ dataset including 1701 Type Ia supernovae
• Employed a two-parameter rendering framework for analysis
• Conducted statistical comparison of the exponential model with ΛCDM
• The exponential model achieved a Δχ² value of 4.54 relative to ΛCDM
• Findings indicate that the two models are statistically indistinguishable