The Absorption Horizon: A New Critical Radius of the Schwarzschild Geometry Derived from Radiation Equilibrium

This paper introduces a new critical radius in black hole geometry called the Absorption Horizon, located at 4/3 of the Schwarzschild radius. By applying concepts from fluid dynamics and atmospheric entry, This paper proposes that this horizon marks the true outer boundary of a high-energy firewall zone that surrounds the singularity which demonstrates that the energy within this zone follows a universal scaling law that matches the Hawking temperature, suggesting that the singularity's energy is directly linked to how a black hole evaporates. This framework provides a new physical perspective on the black hole interior and offers a potential solution to the long-standing information paradox.