Best-fit kinematic maps from the joint models for different BH mass assumptions. The displayed kinematic bin maps have 52 bins in total. Upper Panel: Joint modeling is performed using a grid of M_BH values ranging from 10⁹ to 10¹⁰ M_⊙. In each model, the BH mass is fixed and incremented in steps of 10⁹ M_⊙ within this range. The best-fit kinematic map, corresponding to M_BH = 3 × 10⁹ M_⊙, achieves χ_dyn² = 50. Middle Panel: The best-fit kinematic map from joint modeling that assumes no BH, yielding χ_dyn² = 64. Lower Panel: The best-fit kinematic map from joint modeling using the EPL mass profile, resulting in χ_dyn² = 58.