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Astronomers spotted a galaxy dying after a major collision. It's bleeding out 10,000 suns' worth of gas each year. - Yahoo News

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the ACS Science Team
Durham University in England
the Saclay Nuclear Research Center
the Andromeda Galaxy
the University College London

H. Fort
G. Illingworth
M. Clampin
G. Hartig
Emanuele Daddi
Chiara Circosta


the Milky Way

Hubble Space Telescope
the Atacama Large Millimeter/submillimeter Array (ALMA

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The New York Times
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The finding suggests that major collisions can leave galaxies leaking vital gases into space, a process that eventually starves them and halts star formation, thereby killing them."This is the first time we have observed a typical massive star-forming galaxy in the distant universe about to 'die' because of a massive cold-gas ejection," Annagrazia Puglisi, the study's lead author and a researcher at Durham University in England, said in a press release.As stars form, they produce winds. Astronomers think that these winds from stars and black holes carry star-forming material into distant space, eventually causing galaxies to die.But the discovery of ID2299's gas-leaking tail reveals a new path to galactic death."Our study suggests that gas ejections can be produced by mergers, and that winds and tidal tails can appear very similar," Emanuele Daddi, a co-author of the study and an astrophysicist at the Saclay Nuclear Research Center in France, said in the release.

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