catch a glimpse dust who left behind one of the first stars in the universe. It is believed to have originated 100 million years after birth big bang. The clues came thanks to the light of a quasar, which is an extremely bright active galactic nucleus, located at a very distant distance. The light went through the dust cloud which contained the remains of this star and arrived on Earth after 13 billion years.
The discovery was published in the journal The astrophysics magazine and was created by an international research group led byUniversity of Tokyoor. This could be the first real evidence of the existence of these ancient stars. Yuzuru Yoshii and his team analyzed the light and identified the signature of one mixture of chemical elements which, according to the authors, could have come from a star of the first generation.
According to the hypothesis, the very first stars super hot, enormous (a mass hundreds of times greater than that of the sun) e bright. It is believed that they were formed only from simpler gases such as hydrogen, helium, and very small amounts of lithium, as the heavier elements formed later.
Researchers believe that the stellar cloud identified is what remains after the death of a particular type supernova only possible with such massive stars. Unlike the other Supernovas, these collapse without going away neutron stars or black holes.
Source: Lega Nerd
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