Edge-on views of the kinematics of the disk derived using the RC giant sample. From left to right, bins show the median velocity V_R, V_θ, V_Z (in km s⁻¹) of RC stars within each bin on the R, Z plane. The red color is prominent in the north corresponding to the blue/cyan color in the south, the asymmetric region corresponding to the South-middle and South-middle opposite density structures is evident in the radial and rotational velocity distributions. The right panel shows vertical velocity distribution in the R, Z plane, the range is R = [12 15], kpc, Z = [−3 3] kpc, the green/red colors predominate bins both above and below the plane, illustrating that there is a clear bulk motions at all radii.