When two galaxies collide they often stop making new stars

When two galaxies collide, it creates a burst of power that kills off big name formation – a procedure that surprisingly doesn’t fit up with what we see in simulations of galactic smash-ups


29 September 2022

Freshly-merged galaxies can forestall forming stars

Eu Area Company/Hubble & NASA

When galaxies collide, new stars ceaselessly forestall forming. This impact has been predicted by means of simulations for greater than a decade, however observational proof for it’s been sparse and newer theoretical paintings has introduced it into query. Now, researchers have demonstrated that freshly-merged galaxies are a ways much more likely than non violent ones to close down big name formation.

Sara Ellison on the College of Victoria in Canada and her colleagues assembled a pattern of 508 galaxies that had skilled mergers inside the final billion years …

Article amended on 30 September 2022

We’ve got corrected how a lot more most probably merged galaxies have been than remoted ones to have gone through a duration of fast big name formation, adopted by means of near-total cessation.

#galaxies #collide #forestall #making #stars

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