Image Details
Caption: Figure 8.
NGC 4697 CO(1–0) (a) and CO(2–1) (b) kinematic fit parameters as a function of radial distance. Fitted parameters include ring circular velocity, inclination (i), and PA of the major axis of fitted ellipses (ϕ). The center position and disk thickness of the model were fixed during the fitting process. Fits did not determine well the velocity dispersions, which are not shown (see text). (c) The results of the velocity fits to the ALMA CO(1–0) data, with the actual data on the left, the model in the middle and the residuals on the right side. The green line shows the contour of the positions where the velocity is equal to the galaxy’s systemic velocity. The tickmarks are at 1″ intervals. The moments displayed in the images correspond to the central brightest regions of those shown in Figure 6.
© 2026. The Author(s). Published by the American Astronomical Society.