A team of astronomers from the University of Arizona (USA) published the details of a monstrous galaxy never seen before this week in The Astrophysical Journal. They named it “Cosmic Yeti,” since photographing it is as difficult as photographing the footprints of the Yeti.
Christina Williams, the lead author of the study, noticed a slight spot of light while she was making observations with the ALMA radio telescope complex, located high in the mountains in the Chilean Atacama desert. The glow seemed not to be linked to any known galaxy, which would mean that it would probably be far away and hidden by clouds of dust.
The observed emission is due to the “warm glow of dust particles heated by the stars that form inside a young galaxy,” says the University of Arizona. These dust particles form giant clouds that hide the light of the stars, making the galaxies completely invisible. The researchers estimate that the signal took 12,500 million years to reach Earth, which could give a vision of the universe in its early years.
The co-author of the study, Ivo Labbé, from the Swinburne University of Technology (Australia) said: «We discovered that the galaxy is actually a massive monstrous galaxy with as many stars as our Milky Way, but full of activity, which forms new stars 100 times faster than our galaxy ».
So far no evidence of the existence of such “monstrous” galaxies had been found and this discovery provides new information about large galaxies in the universe that have not yet been discovered.
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