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Fig. 12

image

Velocity profiles of the disk at two resolutions: rotational velocity within H (orange) /3H (green) and infall velocity within H (red)/3H (violet). Both positive and negative values with |u| > 102 are plotted in logarithmic scale, and this is connected with a linear range in between. The Keplerian rotational velocity is plotted in blue for reference. The inner disk is very close to Keplerian rotation, and the deviation becomes remarkable in the outer magnetized part of the disk. The envelope is far from Keplerian rotation, while the infalling gas has roughly half the free-fall velocity. Below the disk accretion radius (vertical gray line), the velocity is not physically meaningful. The disk characteristic radii Rkep and Rmag (the dotted vertical lines) mark the transition between different behaviors.

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