Properties of the warm corona on accretion rate-radius plane given in units of R_Schw. All models have been calculated for M_BH = 10⁸ M_⊙, and magnetic parameters are corresponding M1 (left), M2 (middle), and M3 (right) panel columns with values given under Fig. 1. Upper panels display average temperature T_avg of the corona in keV (colors) and optical depth of the base of the warm corona τ_cor (contours). Dotted contours at upper panels indicate where ℒ_rad = 0 under constant gas pressure. Bottom panels show number density n_H in cm⁻³ (colors) at τ_cor and total column density Σ in g cm⁻² (contours). Dotted contours at bottom panels show where dΣ/dṁ = 0. Dark contours in case of M3 model, indicate the parameter sub-space affected by the density inversion.