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Astronomers are witnessing the death of the Milky Way for the first time

 

Astronomers are witnessing the death of the Milky Way for the first time


Coincidentally, the research team discovered a dying galaxy in nearly nine billion light years using the ALMA or Atacama Large Millimeter / Submillimeter Meteor Telescope.


As a result of the combination of the "tidal tail" the artist collides with the Galaxy ID 2299 and part of the gas. ESO / M. Cornmeaser


Bengaluru: Astronomers have seen many "dead" galaxies, but have not seen the process of death before.


Using the Atacama Large Millimeter / Submillimeter Array (ALMA) telescope, astronomers observed the Milky Way galaxy nine billion light-years from Earth, losing half the stars' gas and fuel.


When galaxies stop making stars or lose star-forming material, they "die".


The Galaxy ID2299 is currently releasing cold gas in the form of a substance that costs about 10,000 solar cells per year. It is estimated that the galaxy currently emits 46 percent of the total cold air.


New stars are still forming rapidly in the Milky Way, but the rapid depletion of fuel will reduce the remaining gas and cause the Milky Way to die within a few million years.


"We've long seen a massive cold gas explosion in the distant universe that could turn into a long-term star," said Anagrazia Puglisi, a senior researcher at Dorham University in the United Kingdom and New Research. Saclay Nuclear Research Center (CEA-Saclay), France.


Why does ID2299 emit gas?

The research team behind the result believes that the collision of the two galaxies is causing the galaxy ID 2299 to emit large amounts of cold gas, resulting in the formation of ID 2299.


Colliding galaxies are known as "tidal tails" - long streams of air and stars to be found in the rear of the galaxy.


This tail is hard to find in distant galaxies, but researchers have been able to find that the thermal feature is part of the permitted emissions because it captures the luminous feature when released into space.


Previously, spells of gases from wind galaxies were considered from black hole activity and the formation of stars.


"Our study shows that gas emissions can be caused by aggregation and that wind and tidal tails can look very similar," said Emanuel Daddy, co-author of the study.


Daddy believes that pre-analysis of off-gas emissions can confirm that many of them have tidal tails.

“This will lead us to rethink our understanding of how galaxies die,” he said.

The discovery was a serological accident, and the group caught on while examining data from a galaxy study conducted by ALMA to study the properties of cold gases in the galaxy.


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