Astrophysicists found traces of the earliest stars in the universe

Astrophysicists found traces of the earliest stars in the universe

Using the Gemini North telescope, researchers found unusual materials in one of the quasars. A chemical analysis of the substance surrounding this black hole showed that it could be the remnants of the first stars of the universe.

Researchers believe that the first stars were formed in the universe when it was only 100 million years old. Scientists call them genetics III. They were supposed to be very massive, quickly dying and unable to survive to the present day. Because of the lack of carbon in such stars, only a proton-proton nuclear cycle could occur, which requires super-high temperatures.

Researchers believe that as a result of the supernova explosion, which ended the life cycle of such stars, they fell into parts by planting heavy elements around them.

In a new study, scientists reported the discovery of abnormal heavy elements in the gas cloud surrounding the quasar J1342+0928. Using an innovative method to determine the chemical elements contained in the clouds, researchers observed a very unusual composition — the material contained 10 times more iron than magnesium compared to the ratio of these elements found in our sun.

Researchers believe that the most likely explanation for this striking feature is that the material was left behind by a first-generation star that exploded like a supernova with steam instability, and these surprisingly powerful versions of supernova explosions have never been seen, but modelling shows that this is how giant stars with a mass of 150–250 times the solar mass end up.