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Fig. 2

image

Radial logarithmic binned, mass-weighted averages of the radial velocity A), rotational velocity B), radial velocity over sound speed C), rotational velocity over sound speed D), rotational velocity over Keplerian speed E), and radial velocity over rotational velocity are plotted as a function of radius, just before the first protostar forms. The initial strength of rotation introduces a scatter in the velocity.

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