This corona is not dense enough to strip gas from the Magellanic Clouds, but once the gas has been drawn out by tidal forces, friction with the corona causes it to decelerate, slowly rain down on the galaxy and contribute to the growth of the Milky Way.

• 星系冕虽不至于密集到可自麦哲伦云撕裂气体的地步，可是气体一旦被潮汐力抽出来后，其与星系冕的摩擦力便可降低它的速度，使它像下雨般缓缓落入我们的星系，因而促进银河系的增长。