17 April, 2020
5 Min Read
Scientist’s unravelled biggest star explosion ever seen
Part of: GS-III- S&T - Space (PT-MAINS-PERSONALITY TEST)
The supernova, releasing twice as much energy as any other stellar explosion observed to date, occurred about 4.6 billion light years from Earth in a relatively small galaxy. A light year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km) PT SHOT.
Believed to be a type of supernova that until now has only been theorized. Astrophysicist said two very massive stars - each about 50 times the sun’s mass - may have merged to make one extremely massive star roughly 1,000 years before the explosion. They had been part of what is called a binary system with two stars gravitationally bound to each other.
The merged star exploded in a supernova, formally named SN2016aps, inside a very dense and hydrogen-rich envelope.
Stars die in various different ways depending on their size and other properties. When a massive star - more than eight times the mass of our sun - uses up its fuel, it cools off and its core collapses, triggering shock waves that cause its outer layer to explode so violently that it can outshine entire galaxies.
“Pulsational pair-instability is when very massive stars undergo pulsations which eject material away from the star
“This discovery shows that there are many exciting and new phenomena left to be uncovered in the universe.
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