M

Equation (3.31) implies that a dense core rotates so slowly (with a representative period of 2n/Q = 6 x 106 yr) that the associated centrifugal force is negligible compared to the self-gravity and pressure gradients that truly determine its equilibrium structure. It is hardly surprising, then, that the observed orientations of the rotation axes bear no apparent relation to the cores' spatial elongations. The true significance of the rotation lies not in cloud structure, but in the effect on collapse itself.

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