Predictions→ NANOGrav GW Background
NANOGrav GW Background
A historic simplified comparison placed a matter-bounce slope near an external free-spectrum estimate under specific modeling choices. It cannot identify the origin of the signal or establish a bounce.
Legacy comparison
γ = 3.0
Legacy simplified slope comparison
NANOGrav / PTA external context
Current Constraint
External PTA measurements remain relevant context, but this legacy simplified comparison does not exclude astrophysical alternatives or select a bounce scenario.
Key Results
- Historic fitted values depend on the chosen simplified likelihood and model family
- This comparison does not exclude astrophysical alternatives
- Model choice and data representation materially affect inferred slopes
- Sampling diagnostics describe the historic computation, not physical confirmation
- PBH-induced gravitational-wave connections remain theoretical