Equation Icon  [ ] 2 near−ext 2 dr2 2 2 ds = Γ (𝜃) − r(r + 4πT )dt + ----------near−-ext-+ α(𝜃)d𝜃 + γ(𝜃)(dϕ + krdt) , r(r + 4πT ) χA = χA(𝜃), AI = f I(𝜃)(dϕ + krdt ) − eIdϕ. (79 ) k