They observe for the first time the death of a distant galaxy

Observan por primera vez la muerte de una galaxia muy lejana

Astronomers believe that the event was caused by a fusion between two galaxies.

Astronomers from the European Southern Observatory (ESO) with observations from the Alma Telescope in Chile They got it Discover a galaxy It emits about half of its gas Star formation. In this way, the galaxy wastes fuel to produce new stars, which means it is nearing the end of its life.

The light of the galaxy ID2299 It took about 9 billion years to reach Earth, so we see it when the universe is only 4.5 billion years old. Scientists have not yet clearly observed the beginning of the ‘death’ process of the distant galaxy.

“This is the first time in the universe that a typical distant giant star-forming galaxy is on the verge of ‘dying’. Due to the emission of cold gasSays Annagracia Puglisi of the University of Durham in the UK Natural astronomy. Puglisi admitted that he was excited to discover such an unusual galaxy.

Researchers estimate that this gas loss, equivalent to 10,000 suns per year, is due to a collision with another galaxy, which could cause astronomers to rethink their understanding. How galaxies die.

The wind, which is caused by star formation and the action of black holes in the centers of giant galaxies, is believed to be behind the launch of star-forming objects into space, effectively shutting down stars. Galaxies to create new stars. However, a new study has revealed that Galaxy Mergers They can also cause stellar fuel to be ejected into space.

“Alma sheds new light on mechanisms that can prevent star formation in distant galaxies, witnessing such a large event An important part of the complex puzzle “The evolution of galaxies,” said Chiara Sarkosta, a researcher at University College London (United Kingdom).

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