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Fig. 5.

image

NGC 628. Left panels: observed velocity profile (upper panel) and the velocity profile along the kinematic axis and along the axis orthogonal to it (bottom panels). The color-code of the velocity and residual fields is given in km s−1, where the systemic velocity of the object has been subtracted. Center panels from top to bottom: rotating disk model (RDM) velocity field (left), residual fields (right). Same as above but for the rotating tilted-ring model (RTRM) and radial ellipse model (REM). Right panels: axial ratio (upper panel) and the position angle as a function of the distance from the center (bottom panel).

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