JWST Quasi-Star Black Hole Seed Explorer

Cross-Section Hydrostatic Simulation Equilibrium: Radiation Supported

Radial Probe: 0.05 AU Local T: 840,000 K | P_rad/P_grav: 1.42

Astrophysical Model Parameters z ≈ 8.5 (660 Myr Post-BB)

Astrophysical Presets:

Black Hole Core 100 M☉

Envelope Mass 50,000 M☉

Accretion Infall 0.08 M☉/yr

Metallicity (Z/Z☉) 10⁻⁴

Core Eddington (Γ)
12.5×

Photosphere Radius

14.2 AU

Surface Temp

4,200 K

Total Luminosity

4.8×10⁷ L☉

Quasi-Star Lifespan

720 kyr

Remnant BH Seed
10⁴ - 10⁵ M☉

JWST NIRCam Photometric Signature

Strong red excess in F356W/F444W relative to F150W due to cool 4,200 K envelope spanning 14.2 AU. Unlike standard Population III supergiants powered by CNO/fusion, radiation pressure from the internal black hole furnace inflates a convective sphere matching solar-system dimensions.