The Photogravitational Parameter Φ: A Surface-First Diagnostic for Luminous Stars
Year: 2025
Type: article
Abstract: This paper extends stellar evolution theory to include general relativistic effects near the Eddington limit. We show that gravitational redshift reduces the effective Eddington luminosity by √(1 − 2GM/Rc²), modifying the exponential expansion law for unstable envelopes. The framework introduces the photogravitational parameter Φ = L/(Mg), constructed from observable quantities: luminosity, mass, and surface gravity. This enables consistency tests without opacity uncertainties that plague traditional models. Applications to Wolf Rayet stars and Luminous Blue Variables reveal that relativistic corrections exceed 1% when compactness β > 0.01. The approach bridges stellar surface physics with horizon thermodynamics, providing testable predictions for extreme stellar systems. Key result:Stellar envelopes expand slower in curved spacetime, with the timescale lengthening by (1 − 2GM/Rc²)^−1/2 relative to classical predictions.
Author: Bashan, Nadav
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7079657388
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