... December 14, 1999 . HighVelocityClouds and the Milky Way . Credit: B. Wakker ( U. Wisconsin-Madison ) et al., NASA . ... Highvelocityclouds (HVCs) of gas have been seen for decades but their origins and destinations have remained mysterious. ...
... with spiral structures, might be created, according to the appraisal of mechanisms by TenorioTagle & Bodenheimer (1988), by the collision of highvelocityclouds (HVCs) with the disk of the galaxy or by stochastic selfpropagating star formation (SSPSF ...
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