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Paper: Angular Momentum and the Formation of Massive Stars
Volume: 387, Massive Star Formation: Observations Confront Theory
Page: 86
Authors: Wolff, S.C.; Strom, S.E.
Abstract: Recent studies of the distribution of rotation speeds, N(vsini) among O and B stars show that massive stars located in bound clusters have a higher mean rotation speed and a paucity of slowly rotating stars when compared with their analogs in unbound associations and among field stars. Cluster-forming molecular clouds are characterized by higher surface density and higher turbulent speeds. If higher turbulent speeds are also characteristic of the initial conditions of individual star-forming cores, then the resulting higher time-averaged accretion rates offer a plausible explanation for the higher rotation speeds.
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