Fig. 24.
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Gas velocity rotation curves from HI (Lindblad et al. 1997) (red squares) and from CO (Lang et al. 2020) (red points) of NGC 1300 used to compute the torque map values of the data sets in panels (c) and (d). Only the highest points of each curve were kept. The blue curve represents the velocity model obtained from the computed potential (with limitations of the red image cut-off beyond 5 kpc).
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