BLACK HOLE ACCRETION DISK

Shakura-Sunyaev thin disk · temperature profile · relativistic ISCO · Eddington luminosity
Shakura-Sunyaev disk

T(r) ∝ r⁻³/⁴ · [1-(r_in/r)^½]^¼

ISCO: innermost stable circular orbit
Schwarzschild: r_ISCO = 6 GM/c²

Eddington luminosity:
L_Edd = 4πGMc/κ_es

Peak temp ≈ -
L/L_Edd ≈ -
r_ISCO ≈ - r_g