- ❪✺₍₀₎❫ High-Energy Astrophysics Corridors ○
- ❪✺₀❫ High-Energy Astrophysics Portals ○
- ❪✺₁❫ High-Energy Astrophysics Classes ○
- ❪✺₂❫ High-Energy Astrophysics Domains ○
- ❪✺₃❫ High-Energy Astrophysics Particulars ○
- ❪✺₄❫ High-Energy Astrophysics Sets ○
- ❪✺_❫ High-Energy Astrophysics Subs ○
- ❪∂❫ High-Energy Astrophysics Math ○
- Accretion ○
- Event Grade ○
- Fe Kα Line ○
- Innermost Stable Circular Orbit (ISCO) ○
- Pileup ○
- Quasi-Periodic Oscillation (QPO) ○
- Relativistic Reflection ○
- Spectral Hardening ○