↩ 🔵 🔵 🔵 ❪֎₅’❫ XSPEC Models ○ Dimensionless Spin (a∗) ○◂ kerrbb2 ⚬ˣˢᵖᵉᶜ Mass Accretion Rate (M˙) ○◂ Orbital Inclination (i) ○◂ Primary Mass (M₁) ○◂ Source Distance (D) ○◂ Spectral Hardening Factor (f𝘤𝘰𝘭) ○◂