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This distant galaxy is signing its own death warrant astronomy.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from astronomy.com Daily Mail and Mail on Sunday newspapers.
Galaxy mergers in the early universe could limit star formation Map of the cold molecular gas from the galaxy ID2299. Credit: A Puglisi et al. Astronomers have looked nine billion years into the past to find evidence that galaxy mergers in the early universe could shut down star formation and affect galaxy growth. New research led by Durham University, UK, the French Alternative Energies and Atomic Energy Commission (CEA)-Saclay and the University of Paris-Saclay, shows that a huge amount of star-forming gas was ejected into the intergalactic medium by the coming together of two galaxies. The researchers say that this event, together with a large amount of star formation in the nuclear regions of the galaxy, would eventually deprive the merged galaxy – called ID2299 – of fuel for new stars. ....
A sensational image of a dying galaxy - ejecting 10,000 Suns-worth of gas every year due to a large collision - has been captured by an international te ....
Most stars in the universe today are found in massive galaxies called ellipticals, named for their stretched-out-circle shape. Unlike our own galaxy, which is a spiral with arms extending out from the centre, the edges of elliptical galaxies are smooth. At first glance, these galaxies might seem like simple systems. However, they are among the most mysterious objects in the cosmos. Elliptical galaxies host extremely old stars and are not forming new stars. Exactly how these dead galaxies form is a question both observational and theoretical astronomers have tried to answer for a long time. Our new study, published in Nature Astronomy, could help solve this puzzle. ....