July 31, 2021


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Rare Hypernova: Evidence of Rare Big Explosion in 13 Billion Year Old Star Found for the First Time


Scientists have found evidence of a giant explosion in a star within a billion years of the Big Bang. Usually, when a star dies, the explosion in it is called a supernova, but there are magneto-rotational hypernova and one of these, scientists have come to know about 10 times more luminous and energy. The study found that there were elements left after this explosion from which the next generations of stars could be born.

According to the study published in ‘Nature’, the stars in which such explosions take place, their mass is dozens of times more than the Sun. They spin fast and their magnetic field is also very large. When it dies, there is a huge explosion and its elements are transformed into heavy metals. This information has been given by Astronomer David Yong of the National University of Australia.

one of the oldest stars in the universe
Yong and his colleagues have found a star on the edge of our own Milky Way Galaxy, in which chemicals after such an explosion can be found. The name of this star is SMSS J200322.54-114203.3 and it is 7,500 light-years away from the Sun. It was formed about 13 billion years ago i.e. 800 million years after the origin of the universe. It is one of the oldest stars in the universe.

Too much amount of heavy elements
In the new study, researchers analyzed the chemicals present in it based on the wavelength of the light emitted from it. For this, special instruments were used by the Giant Magellan Telescope located in the Atacama Desert of Chile and it was found that unlike other stars, it was low in iron while heavy elements such as zinc, uranium and europium were high.

What was the effect of the big blast?
According to the study, the reason behind this is a giant explosion i.e. a ‘hypernova that has become more intense due to rapid rotation and powerful magnetic field’. According to study co-author Chiaki Kobayashi of the University of Hertfordshire, for the first time, evidence has been found that suggests a different type of hypernova that produced all the stable elements of the periodic table at once. This discovery is important because through this it can be known about the birth of other stars.


NASA released the video of the explosion in the star, 5 billion times brighter than the sun


symbolic picture

symbolic picture