Catastrophic event stopped growth of galaxy{ON News}

  • #1
physixlover
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Catastrophic event" stopped growth of galaxy{ON News}

Growth of the galaxy stopped,it exploded does this may effect our galaxy
http://uk.news.yahoo.com/4/20100311/twl-catastrophic-event-stopped-growth-of-41f21e0.html [Broken]
 
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  • #2
Chalnoth
Science Advisor
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Growth of the galaxy stopped,it exploded does this may effect our galaxy
http://uk.news.yahoo.com/4/20100311/twl-catastrophic-event-stopped-growth-of-41f21e0.html [Broken]
It's been expected for some time now that active supermassive black holes can turn off star formation in galaxies, by blowing away the dust that causes new stars to grow. As far as I know, this isn't completely understood just yet.

The supermassive black hole at the center of our own galaxy, however, is quite quiet: it needs fuel to glow brightly enough to blow away our galaxy's dust, and it seems to have already eaten up nearly everything in its immediate vicinity. Now, if our galaxy collides with another large one (as it will with Andromeda in a few billion years), then there may be quite a bit of new matter in the vicinity of our galaxy's supermassive black hole, perhaps even enough for it to brighten to the point that it does get rid of the dust in our galaxy. I'm not sure we know enough to be able to tell that just yet, though.
 
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