Temporal evolution of the X-ray bremsstrahlung signal from two components: shocked wind (black solid line) and shocked ambient medium (blue dashed line). Two vertical lines represent the quiescent emission of Sgr A*, L [ 2 − 10 keV ] ~ 2 × 10³³ erg s^-1 (Haggard 2017), and the estimated PWN signal, assuming the conversion factor of η_X = 10^-4 between the spin-down luminosity and the X-ray luminosity. The stellar parameters were set to ṁ_w = 10^-8M_⊙ yr^-1 and v_w = 100 km s^-1.