Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Astronomers are watching for the first time how the galaxy ‘far, far away’ dies

Astronomers are watching for the first time how the galaxy ‘far, far away’ dies



For the first time ever, astronomers saw a very distant galaxy that began to die in a potentially large breakthrough, according to CNN.

Galaxies die when the stars in them stop forming.

Known as ID2299, the extinction of the galaxies was likely caused by a collision with another galaxy, which eventually merged to create ID2299, the study reported.

The telling evidence that a collision may have led to a loss of gas is a tidal tail, which is a long stream of gas and stars extending into space after two galaxies collide in a collision, CNN said with reference to the study.

Scientists observed the galaxy pushing out almost half of the gas it uses to form stars, losing about 1

0,000 sets of gas each year, meaning it runs out of fuel to create new stars by removing 46 % of galaxies’ total cold gas so far.

It has now lost almost half of that gas, and because it still creates stars at a speed hundreds of times faster than our own Milky, ID2299 is likely to die in a few tens of millions of years.

The study, led by Annagrazia Puglisi, a senior researcher and postdoctoral research assistant at Durham University in the UK and the Saclay Nuclear Research Center in France, was published Monday in the journal Nature Astronomy.

“This is the first time we are observing a typical massive star-forming galaxy in the distant universe that is ‘dying’ due to a massive cold gas exhaust,” Puglisi said in a statement according to CNN.

“Our study suggests that gas emissions can be produced by mergers, and that wind and tidal tails can seem very similar,” said Emanuele Daddi, study author and astronomer at the Saclay Nuclear Research Center in France. “This may lead us to revise our understanding of how galaxies ‘die’.”

Astronomers captured this rare observation using the Atacama Large Millimeter / submillimeter Array of Telescopes in Chile.

According to the study, the light from this galaxy has taken about nine billion years to reach Earth, which means astronomers are observing what it looked like when the universe was only 4.5 billion years old – knowing that it is now 14 billion years old.




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