Catastrophic event stopped growth of galaxy{ON News}

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SUMMARY

The discussion centers on the impact of catastrophic events, specifically the role of supermassive black holes in halting star formation within galaxies. It is established that active supermassive black holes can expel dust necessary for star formation, thereby stopping the growth of galaxies. The supermassive black hole at the center of the Milky Way is currently inactive due to a lack of nearby fuel, but a future collision with the Andromeda galaxy could provide new material, potentially reigniting star formation by allowing the black hole to become active.

PREREQUISITES
  • Understanding of supermassive black holes
  • Knowledge of galaxy formation and evolution
  • Familiarity with astrophysical phenomena related to star formation
  • Basic concepts of cosmic collisions and their effects on galaxies
NEXT STEPS
  • Research the mechanisms of supermassive black hole activity
  • Study the effects of galactic collisions on star formation
  • Explore the lifecycle of galaxies and the role of dust in star formation
  • Investigate the future trajectory of the Milky Way and Andromeda collision
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Astronomers, astrophysicists, and students of cosmology interested in galaxy dynamics and the influence of supermassive black holes on star formation.

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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
 
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physixlover said:
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
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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