What phenomenon is triggered by the passage of density waves through the material of a galaxy?

0 votes
    Dispersal of gas and dust into a more uniform pattern.
     A local decrease in star-formation rates due to the increase in density.
     A local increase in star-formation rates along the line of the density increase.
     Brightening of more distant stars along the line of sight, due to gravitational lensing.
     Collapse of aging stars due to the increase in surrounding density.
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

0 votes
A local increase in star-formation rates along the line of the density increase.
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)



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