Sco-Cen shows abrupt jumps and plateaus in velocity dispersion correlated with star formation bursts, indicating isotropic expansion, inside-out propagation at 5-6 km/s, and stellar feedback as the primary driver.
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The evolution of velocity dispersion in the Sco-Cen OB association
Sco-Cen shows abrupt jumps and plateaus in velocity dispersion correlated with star formation bursts, indicating isotropic expansion, inside-out propagation at 5-6 km/s, and stellar feedback as the primary driver.