Fig. 13
First-order moment μ1 for an infinite infall radius, as a function of the projected distance, D θ (in kau), for beamwidths D θb = 0.1, 0.2, 0.5, 1, 2, 5, and 10 kau, where D is the distance to the source. The vertical axis scales as 
. The left axis is μ1 for a central mass M* = 1 M⊙, while the right axis is for M* = 10 M⊙.
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