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An old, dying galaxy could help astronomers learn more about the Milky Way



This galaxy makes you want to see the fjords

Astronomers consider galaxies to be alive or dead, depending on whether a certain group is still producing new stars or not. Star groups in which star formation has slowed considerably but has not yet been stopped are classified as deleting galaxies . These objects are not as bright as active galaxies, but not as dark as dead families of stars. This classification helps astrophysicists study galaxies across the cosmos.

An unusual finding revealed that a galaxy with a fully formed nucleus died just 1.5 billion years after the Big Bang.

] The red galaxy near the center of the image died 12 billion years ago, making it the oldest such object to be found to date. Photo credit: NAOJ / M. Tanaka

"This result is consistent with the fact that these dying giant systems when they were alive and forming stars may not have been as extreme compared to the average population of galaxies," explains [19659004] Francesco Valentino, assistant professor at the Cosmic Dawn Center at the Niels-Bohr Institute.

Our own Milky Way is still very much alive, because stars are born everywhere in our galaxy. However, not far from us is M87, a dead galaxy that is home to a monster black hole that was recently photographed by researchers using a global network of radio telescopes. The existence of this huge supermassive black hole – much larger than that in the middle of the Milky Way (19459007) (19459008) – could have played a significant role in the downfall of the galaxy, the researchers said.


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