- ❪✺₁𝑖❫ Classes of Black Holes ○️
- ❪✺₁.❫ Classes of X-Ray Binaries ○
- ❪✺₁₍₀₎❫ High-Energy Astrophysics Class Corridors ○
- ❪𖣐₁;❫ Classes of High-Energy Astrophysics Data ○️
- ❪𖣐₂;❫⁺ Classes of High-Energy Astrophysics Instrumentation ○
- Active Galactic Nucleus (AGN) ○꠹
- Black Hole ○꠹
- Event ○꠹ᴴᴱᴬ
- Hardness-Intensity Diagram (HID) ○꠹
- Neutron Star ○꠹
- Response Matrix ○꠹
- X-Ray Binary (XRB) ○꠹