↩ 🔵 🔵 🔵 ❪✺_ₜₛ❫ High-Energy Astrophysics Typesets ○ ❪𖣐₂❫ High-Energy Astrophysics Instrumentation ○ ACIS ○´ BAT ○´ EPIC ○´ FPMA ○´ FPMB ○´ HRC ○´ PCA ○´ XRT ○´